Ansys – Software for Electric Machine Design

The electric propulsion system has drawn more and more attention in the last decade. There has been a lot of development of the electric machines which are used in automotive and aerospace. It is essential for engineers to develop electric machines with high efficiency, high power-density, low noise and cost.

Therefore, simulation tools are needed to design the electric machines that can meet the requirement. The product launching time can be reduced significantly with the help of the simulation tools. The design process of electric machine involves the area of Electromagnetics, Mechanical, Thermal and Fluids. This makes Ansys the perfect tool for designing electric machines as it is a multi-physics simulation platform. Ansys offers a complete workflow from electromagnetics to thermal and mechanical which provides accurate and robust designs for electric machines.

To design high performance, more compact and reliable electric machines, design engineers can start with three Ansys tools: RMxprt, Maxwell and Motor-CAD. The capabilities and differences of these three tools will be compared and discussed.

1. Ansys RMxprt

Ansys RMxprt is a template-based tool for electromagnetic designs of electric machines. It covers almost all of the conventional radial types of electric machines. Starting from Ansys 2020R2, some axial types have also been included in RMxprt (IM, PMSM, BLDC).

Fig. 1. Electric machine types in Ansys RMxprt.

Users only need to input the geometry parameters and materials for the machines. The performance data and curves can be obtained for different load types. Since RMxprt uses analytical approaches, it can generate results very fast. It is also capable of running fast coupling/system simulations with Simplorer/Twin Builder. Ready-to-run Maxwell 2D/3D models can be created directly from RMxprt automatically.

2. Ansys Maxwell

Ansys Maxwell is a FEA simulation tool for low-frequency electromagnetic applications. Maxwell can solve static, frequency-domain and time-varying electromagnetic and electric fields. The Maxwell applications can be but not limited to electric machines, transformers, sensors, wireless charging, busbars, biomedical, etc.

Unlike RMxprt which uses analytical method, Maxwell uses the FEA approach which allows it to do high accuracy field simulations. Engineers can either import the geometry or create their own models in Maxwell. Therefore, there is no limit of types of machines that can be modeled in Maxwell. It can model all types of electromagnetic rotary devices such as multi-rotor and multi-stator designs.

Fig. 2. Electric machine detailed model in Ansys Maxwell.

Maxwell can do more detailed electromagnetic simulations for electric machines, for example, the demagnetization of the permanent magnets, end winding simulations and magnetostrictive effects. With Maxwell, engineers are able to run parametric sweep for different design variables and to do optimizations to achieve the optimal design. Maxwell is also capable of creating equivalent circuit extraction (ECE) models. The ECE is one of the reduced order modelling (ROM) techniques, which automatically generates an efficient system-level model. There are several Ansys customization toolkit (ACT) available for Maxwell to quickly create efficiency map and simulate impact of eccentricity. Furthermore, Maxwell can be coupled with Ansys Mechanical/Fluent/Icepak to do thermal and mechanical analysis.

3. Ansys Motor-CAD

Ansys Motor-CAD is suitable to make design decisions in early design phase of electric machines. It includes four modules: electromagnetic, thermal, lab and mechanical. Motor-CAD can perform multiphysics simulations of electric machines across the full torque-speed range. Motor-CAD uses a combination of analytical method and FEA, and it can quickly evaluate motor topologies and optimize designs in terms of performance, efficiency and size.

Motor-CAD is capable of simulating the radial types of electric machines. With its lab module, it can do the duty cycle simulations to analyze electromagnetic, mechanical and thermal performances of electric machines. The thermal module is a standard tool in industry which can provide fast thermal analysis with insight of each thermal node, pressure drop, losses. Motor-CAD mechanical module uses 2D FEA to calculate the stress and deformation. Engineers can also manually correlate the models in Motor-CAD based on the manufacturing impacts or testing data.

Fig. 3. Ansys Motor-CAD GUI and machine types.

Motor-CAD can provide links to Ansys Maxwell, Mechanical, Icepak and Fluent for more detailed analysis in the later phases of motor designs.

  • What to use?

RMxprt and Motor-CAD both can handle most of the radial types of electric machines. RMxprt can also model some conventional axial flux machines. RMxprt can purely model the electromagnetic performance of the machines, while Motor-CAD can simulate electromagnetic, thermal and mechanical performances.

Maxwell can simulate any types of machines (radial, axial, linear, hybrid, etc.) as it can import or draw any geometry. Both static and transient analysis can be conducted in Maxwell.

  • When to use?

RMxprt and Motor-CAD are most suitable in the early design stages of the electric machines. Engineers can get fast results about the machine performance and sizing which can be used as a guideline in the later design phase.

Maxwell can be used in the early design stages for more advanced types of electric machines as well. Maxwell is also capable of doing more detailed electromagnetic designs in the later stage and can be used to do system-level transient-transient co-simulation (coupled with Ansys Simplorer/Twin Builder). More detailed geometries, advanced materials and complex electromagnetic phenomenon can be modeled in Maxwell. In the final stages of running more advanced CFD and NVH analysis, Maxwell can be linked with Ansys Fluent/Icepak/Mechanical to ensure the design robustness of the machines before going into prototyping/production.

  • Who can benefit?

RMxprt and Motor-CAD do not require strong FEA simulation skills as no boundary conditions or solution domain need to be set. Engineers with basic knowledge of electric machines can get familiar with the tools and get results very quickly.

Maxwell requires users to setup the mesh, boundary and excitations as it uses the FEA method. Engineers will need to acquire not only the basic concepts of machines but also some FEA simulation skills in order to get more reasonable results.

Summary

RMxprt: It is a template-based tool for initial electric machine designs which uses analytical analysis approach.

Maxwell: It uses FEA approach model both 2D and 3D models. It is capable of simulating either simple or mode advanced electromagnetics in electric machines.

Motor-CAD: It is suitable for initial machine designs which uses analytical and FEA methods. It can do electromagnetic, thermal and initial mechanical analysis.

If you would like more information related to this topic or have any questions, please reach out to us at info@padtinc.com.

Optimizing Electronics Reliability with Ansys Sherlock – Webinar

Ansys Sherlock automated design analysis software is the only Reliability Physics/Physics of Failure (PoF)-based electronics design analysis software that provides fast and accurate life predictions for electronic hardware at the component, board and system levels in early design stages. A unique, powerful capability of Sherlock is its revolutionary ability to rapidly convert electronic CAD (ECAD) files into CFD and FEA models with accurate geometries and material properties.

Through its powerful parsing engine and embedded libraries containing over 500,000 parts, Sherlock reduces pre-processing time from days to minutes and automates workflows through its integration with Ansys Icepak, Ansys Mechanical and Ansys Workbench.

With its extensive parts/materials libraries, Sherlock automatically identifies your files and imports your parts list, then builds an FEA model of your circuit board in minutes. It also produces a holistic analysis that is critical to developing reliable electronics products. It enables designers to simulate each environment, failure mechanism and assembly that a product might encounter over its lifespan.

Join PADT’s Systems Application & Support Engineer Josh Stout for an introduction to this powerful tool along with a look at what new features and updates have been added in the Ansys 2020 R2 version.

Register Here

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All Things ANSYS 041: Simulating Additive Manufacturing in ANSYS 2019 R2

 

Published on: July 15th, 2019
With: Eric Miller & Doug Oatis
Description:  

In this episode your host and Co-Founder of PADT, Eric Miller is joined by PADT’s Lead Mechanical Engineer Doug Oatis, to discuss the tools that make up the ANSYS Additive family of products (Additive Suite, Additive Print, & Additive Prep), and how those tools help to make 3D printing more effective and easier to navigate.

If you would like to learn more about what’s available in this latest release check out PADT’s webinar on Additive Manufacturing Updates Updates in ANSYS 2019 R2 here: https://bit.ly/2JHWYxn

If you have any questions, comments, or would like to suggest a topic for the next episode, shoot us an email at podcast@padtinc.com we would love to hear from you!

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Discovery Updates in ANSYS 2019 R1 – Webinar

The ANSYS 3D Design family of products enables CAD modeling and simulation for all design engineers. Since the demands on today’s design engineer to build optimized, lighter and smarter products are greater than ever, using the appropriate design tools is more important than ever.

Two key tools helping design engineers meet such demands are ANSYS Discovery AIM and ANSYS Discovery Live. ANSYS Discovery AIM seamlessly integrates design and simulation for all engineers, helping them to explore ideas and concepts in greater depth, while Discovery Live operates as an environment providing instantaneous simulation, tightly coupled with direct geometry modeling, to enable interactive design exploration.

Both tools help to accelerate product development and bring innovations to market faster and more affordably.

Join PADT’s Simulation Support Manager, Ted Harris for a look at what exciting new features are available for design engineers in both Discovery Live and AIM, in ANSYS 2019 R1. This webinar will include discussions on updates regarding: 

  • Suppression of loads, constraints, & contacts
  • Topology Optimization
  • Improving simulation speed
  • Transferring data from AIM to Discovery Live

Register Here

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All Things ANSYS 034 – Celebrating 25 Years of ANSYS Simulation: Changes In The Last Quarter Century & Where The Future Will Take Us

 

Published on: April 8th, 2019
With: Eric Miller, Ted Harris, Tom Chadwick, Sina Ghods, & Alex Grishin
Description:  

In this episode your host and Co-Founder of PADT, Eric Miller is joined by PADT’s Ted Harris, Tom Chadwick, Sina Ghods, and Alex Grishin, for a round-table discussion on their experience and history with simulation, including what has changed since they started using it and what they’re most impressed and excited by, followed by some prediction and discussion on what the future may hold for the world of numerical simulation.

Thank you again for those of you who have made the past 25 years something to remember, and to those of you who have come to know PADT more recently, we look forward to what the next 25 will bring.

If you have any questions, comments, or would like to suggest a topic for the next episode, shoot us an email at podcast@padtinc.com we would love to hear from you!

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Gone Skiing: Aerodynamics – Does It Matter Which Way Your Skis Are Pointing On Your Roof Rack?

I was on the gondola up at Keystone for night-skiing a week ago, after a long day at Beaver Creek, because the last thing I am going to do at 3:00 pm is try to make it back to Denver, as everyone knows it’s hardly more than a parking lot at that point. As it gets later, there’s nothing like a solo gondola ride, however, a solo ride would stop this story right about now.

On the gondola, I overheard a conversation where one gentleman was discussing how he was unable to open the hatch of his vehicle when his skis are in his roof rack. That’s fair, I know older WRX wagons with the spoiler would not be able to open with skis on the roof no matter what, so I figured that was the case. It turns out, that was NOT the case. The reason his hatch would not open was that he orients the skis with the tails forward because it is ‘more aerodynamic’ that way… I was skeptical, but held my tongue, knowing that I had the tools at my disposal to investigate!

I decided to make a model that would allow me to simulate various conditions to get to the bottom of this. My initial hypothesis is that the addition of the ski rack and crossbars is what has the largest effect on aerodynamics, and orientation of the skis probably has a negligible effect after that. As a side note, I am solely concerned with aerodynamics in this case, and am not worrying about the amount of the ski’s base material that is exposed for a given orientation. I am of the mindset that tree trunks and hidden rocks on the mountain are more of a danger to your bases than small rocks on the highway anyway. If you are waiting to comment, “Just get a roof box!”, I understand as I own both a box and a rack at this point, and they both have their advantages, and I will not be exploring the aerodynamics of a box…

…yet…

I was able to start by finding some faceted geometry of a Subaru Forester online (I’m from Colorado, can you tell?) and was able to import that into ANSYS Spaceclaim. Once in Spaceclaim, I was able to edit the faceted geometry to get nice exterior panel surfaces, which I then combined to get a single clean faceted exterior for the car.


Faceted Forester Geometry (Equipped with factory side rails)

After that, I used Spaceclaim to generate the remainder of the rack and skis, including crossbars, a ski rack, and a pair of skis (Complete with the most detailed bindings you have ever seen!). I made a combined part of the crossbars, rack, and skis for each one of my orientations, as this allows me to report the forces on each combined part during the simulation.


Added CAD geometry for the crossbars, ski rack, and a pair of skis

For the simulation, I used ANSYS Discovery Live, the newest tool from ANSYS that allows for instant and interactive design exploration. This tool lets me actively add my CAD geometry and shows results in realtime. I was able to start with just the car and then add and swap my ski/rack geometry with simple button clicks. With traditional simulation tools, I would have needed to create a mesh for each one of these cases, analyze them one at a time, and the post-process and compare results after the fact. After launching Discover Live, it’s as easy as selecting the type on analysis I want to run.

The various types of solutions that can be done in ANSYS Discovery Live. For the purpose of this blog, I am using ‘Wind Tunnel’

Once I have selected ‘Wind Tunnel’ for my solution, I can select my geometry, and then am prompted for the direction of flow, as well as selecting the ‘floor’ of my domain. Once that is done, results show up on the screen instantly. I only needed to modify the flow velocity to ~65 mph. I am most interested in the force on the faces of the combined crossbars, rack, and skis in each orientation, so I created Calculations for each one, which is done by simply selecting the part and using the popup toolbar to create the graph.

Popup toolbar allows for the quick creation of solution calculations

I was already off and running. I ran each one of the cases until the force plot had become steady.

Car Only
Skis Tips Forward Orientation

Skis Tails Forward Orientation

Seeing that the force results for the Tips Forward vs. Tails Forward cases were very similar, I decided I should also run a ‘Bases Up’ Orientation, even though I STRONGLY advise against this, as UV wrecks the base material of your skis/snowboard.

Ski Bases Up and Tips Forward Orientation

In addition to the contour plot shown in the images above, you can also use emitters to show streamlines and particle flow, which also give some pretty neat visualizations.

Streamlines shown on the Tips Forward orientation

Particle Emitter shown on the Tips Forward orientation

The graph plots show values for the Total Y Force for Tips Foward, Tails Forward, and Bases Up orientations to be 37.7 N, 39.1 N, and 37.1 N, respectively. Using Discovery Live, I was able to quickly run all 3 of these simulations, showing that there is not a major difference in the forces on the ski rack between the three orientations. So, put the skis on the roof in the direction that makes life easiest for you, and keep those bad boys paired to protect your bases from the sun, because splitting them isn’t going to help with aerodynamics anyway!

Next steps would be taking a specific case and running in 2D, then 3D, in ANSYS Fluent.

Introducing ANSYS 2019 R1

PADT is excited to announce the release of ANSYS 2019 R1, the first group of updates for the suite of ANSYS simulation software this year. The release features updates for a wide variety of applications, including simulation for fluids, structures, electronics, 3D design, and much more.

We will be hosting a series of live webinars over the course of 2019 that will allow you to learn about what’s new in this release, from PADT’s team of expert support engineers.

Take a look at the following upcoming product update webinars for 2019 R1 and register by clicking the links below.

There is more to come, so stay tuned


Fluent Updates in ANSYS 2019 R1
Wednesday, February 13th – 11:00 am – 12:00 pm MST AZ

Computational Fluid Dynamics (CFD) is a tool with amazing flexibility, accuracy and breadth of application. Serious CFD, the kind that provides insights to help you optimize your designs, could be out of reach unless you choose your software carefully. Experienced engineers need to go further and faster with well-validated CFD results across a wide range of applications, and with ANSYS Fluent users are able to do just that; delivering reliable and accurate results.

Join Padt’s CFD Team Lead Engineer, Clinton Smith for a look at what new capabilities are available for the latest version of Fluent, in ANSYS 2019 R1.

Register Here


Mechanical Updates in ANSYS 2019 R1
Wednesday, March 13th – 11:00 am – 12:00 pm MST AZ

From designers and occasional users looking for quick, easy, and accurate results, to experts looking to model complex materials, large assemblies, and nonlinear behavior, ANSYS Mechanical enables engineers of all levels to get answers fast and with confidence. With applications for everything form strength analysis to topology optimization, it’s no wonder this comprehensive suite of tools continues to serve as the flagship mechanical engineering software solution.

Join PADT’s Simulation Support Manager, Ted Harris for a look at what new capabilities are available for ANSYS Mechanical, in the latest version; 2019 R1.

Register Here


High Frequency Electromagnetics Updates in ANSYS 2019 R1
Wednesday, April 10th – 11:00 am – 12:00 pm MST AZ

In today’s world of high performance electronics and advanced electrification systems, the effects of electromagnetic fields on circuits and systems cannot be ignored. ANSYS software can uniquely simulate electromagnetic performance across component, circuit and system design, evaluating temperature, vibration and other critical mechanical effects.

Join PADT’s Electrical Engineer, Michael Griesi for a look at what new capabilities are available with regards to High Frequency Electromagnetics, in the latest version of ANSYS; 2019 R1

Register Here


Discovery Updates in ANSYS 2019 R1
Wednesday, May 8th – 11:00 am – 12:00 pm MST AZ

The ANSYS 3D Design family of products enables CAD modeling and simulation for all design engineers. Since the demands on today’s design engineer to build optimized, lighter and smarter products are greater than ever, using the appropriate design tools is more important than ever.

Join PADT’s Simulation Support Manager, Ted Harris for a look at what exciting new features are available for design engineers in both Discovery Live and AIM, in ANSYS 2019 R1.

Register Here


If this is your first time registering for one of our Bright Talk webinars, simply click the link and fill out the attached form. We promise that the information you provide will only be shared with those promoting the event (PADT).

You will only have to do this once! For all future webinars, you can simply click the link, add the reminder to your calendar and you’re good to go!


All Things ANSYS 027 – 2018 Wrap-up – Our Favorite ANSYS Features From This Year

 

Published on: December 17th, 2018
With: Eric Miller, Tom Chadwick, Joe Woodward, & Ahmed Fayad
Description:  

 

In this episode your host and Co-Founder of PADT, Eric Miller is joined by PADT’s Simulation Support Team, including Tom Chadwick, Joe Woodward, and Ahmed Fayad for a round-table discussion of their favorite ANSYS features released in 2018, along with news regarding the PADT and ANSYS worlds.

If you have any questions, comments, or would like to suggest a topic for the next episode, shoot us an email at podcast@padtinc.com we would love to hear from you!

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All Things ANSYS 026 – Eigenvalue Buckling & Post-buckling Analysis in ANSYS Mechanical

 

Published on: December 3rd, 2018
With: Eric Miller & Joe Woodward
Description:  

In this episode your host and Co-Founder of PADT, Eric Miller is joined by PADT’s Specialist Mechanical Engineer, Joe Woodward to discuss how eigenvalue buckling can effect the load factor of a structure, and what applications it has for a variety of different projects. All that, followed by an update on news and events in the respective worlds of ANSYS and PADT.

For more information on this topic and some visual representation of what is being discussed, check out the blog post that inspired this episode here:

If you have any questions, comments, or would like to suggest a topic for the next episode, shoot us an email at podcast@padtinc.com we would love to hear from you!

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Instantaneous Simulation Results – Introducing ANSYS Discovery Live

Simulation software enables product development engineers to gain insights that were previously possible only through making and breaking expensive prototypes. However, such software isn’t for every engineer. It can be difficult to learn and master, and often simulation results take time to set up and calculate. But what if simulation could be faster and easier?

With its Discovery Live technology, ANSYS revolutionizes product design.

This simulation software provides instantaneous simulation results while you design and edit and enables you to experiment with design ideas for on-the-spot feedback. These immediate insights make simulation useful and relevant to every engineer for upfront CAE. Discovery Live’s speed and simplicity represents a quantum leap forward in simulation technology, and it enables you to spend more time with answers instead of questions.

With Discovery Live, you can:

  • Experiment with design ideas, easily make changes
    and receive instantaneous engineering insights
  • Perform 10 to 1,000 simulations in the same timeframe that was once needed to perform just one simple simulation
  • Simulate on newly created models or any imported CAD file
  • Investigate more options earlier in the design process and develop new products that get to market faster
  • Explore all your “what if” design ideas at little to no cost in time and effort
  • Facilitate breakthroughs and innovations and take your engineering efforts to the next level

Leaving CAD Embedded Simulation Behind – Webinar

With simulation driven product design and development becoming the norm in the world of manufacturing, it has become increasingly relevant for companies to stay on the cutting edge in the search of the next best thing, in order to succeed in their respective industries.

Join PADT’s Co-Owner and Principal Engineer, Eric Miller for a live presentation on the benefits of ditching your current CAD-Embedded Software for state of the art ANSYS Simulation Solutions.

This webinar will dispel common misconceptions surrounding ANSYS Software, explain how to make the move away from CAD-Embedded tools, and present highly requested topics that ANSYS can provide solutions for, such as:

  • Understanding fluid flow: accurate and fast CFD
  • Real parts that exist in assemblies
  • The importance of robust meshing
  • Advanced capabilities and faster solvers

ANSYS 18 – AIM Enhancements Webinar

We here at PADT are excited to share with you the updates that ANSYS 18 brings to the table for AIM: The easy-to-use, upfront simulation tool for all design engineers.

ANSYS AIM is a single GUI, multiple physics tool with advanced ANSYS technology under the hood. It requires minimal training and is interoperable with a wide range of ANSYS simulation products.

Join PADT’s application engineer Tyler Smith as he covers the new features and capabilities available in this new release, including:

  • Magnetic frequency response
  • One-way FSI for shell structures
  • Model transfer to Fluent
  • One-way magnetic-thermal coupling
  • and many more!

ANSYS AIM is a perfect tool for companies performing simulation with a CAD embedded tool, design engineers at companies using high end simulation, and even companies who have yet to take the plunge into the world of simulation.

Register for this webinar today and learn how you can take advantage of the easy-to-use, yet highly beneficial capabilities of ANSYS AIM.

New Tricks for an Old Dog: Eric Learns ANSYS SpaceClaim – Post 3

Adding Complexity and Moving

ANSYS-SpaceClaim-Learning-00-00
This post is the third in a series on learning ANSYS SpaceClaim. After over 31 years of CAD use, it has become difficult for me to learn new tools. In this series I will share my experience as I explore and learn how to use this fantastic tool.
If you have not read the previous post, start here.  A table of contents is here.

After playing with that block it seems like it may be time to try a more complex geometry.  For business banking, I’ve got this key fob that generates a number every thirty seconds that I use for security when I log in.  Might as well sort of model that.

keyfob

So the first thing I do is start up a new model and orient myself on to the sketch plane:

ANSYS-SpaceClaim-Learning-03-01

Then I use the line and arc tools to create the basic shape. Play around a bit. I found that a lot of things I had to constrain in other packages are just assumed when you define the geometry.  A nice thing is that as you create geometry, it locks to the grid and to other geometry. ANSYS-SpaceClaim-Learning-03-02

I dragged around and typed in values for dimensions to get the shape I wanted. As I was doing it I realized I was in metric. I’m old, I don’t do metric. So I went in to File and selected SpaceClaim options from the bottom of the window.  I used the Units screen to set things to Imperial.

ANSYS-SpaceClaim-Learning-03-03

This is the shape I ended up with:

ANSYS-SpaceClaim-Learning-03-04

I took this and pulled it up and added a couple of radii:

ANSYS-SpaceClaim-Learning-03-05

But if I look at the real object, the flat end needs to be round.  In another tool, I’d go back to the sketch, modify that line to be an arc, and regen.  Well in SpaceClaim you don’t have the sketch, it is gone.    Ahhh. Panic. I’ve been doing it that way for 25 some years.  OK. Deep breath, just sketch the geometry I need. Click on the three point arc tool, drag over the surface, then click on the first corner, the second, and a third point to define the arc:

ANSYS-SpaceClaim-Learning-03-06

Then us pull to drag it down, using the Up to icon to lock it to the bottom of the object.

ANSYS-SpaceClaim-Learning-03-07

Then I clicked on the edges and pulled some rounds on there:

ANSYS-SpaceClaim-Learning-03-08

OK, so the next step in SolidEdge would be to do a thin wall.  I don’t see a thin wall right off the top, but shell looks like what I want, under the Create group on the Design tab.  So I spinned my model around, clicked on the bottom surface I want to have open and I have a shell.  A thickness of 0.035″ looks good:

ANSYS-SpaceClaim-Learning-03-09

My next feature will be the cutout for the view window.   What I have not figured out yet is how to lock an object to be symmetrical. Here is why. I sketch my cutout as such, not really paying attention to where it is located.  Now I want to move it so that it is centred on the circle.

ANSYS-SpaceClaim-Learning-03-10

Instead of specifying constraints, you move the rectangle to be centered.  To do that I drag to select the rectangle then click Move. By default it puts the nice Move tool in the middle of the geometry.  If I drag on the X direction (Red) you can see it shows the distance from my start.

ANSYS-SpaceClaim-Learning-03-11

So I have a couple of options, to center it. The easiest is to use Up To and click the X axis for the model and it will snap right there.  The key thing I learned was I had to select the red move arrow or it would also center horizontally where I clicked.

If I want to specify how far away the edge is from the center of the circle, the way I did it is kind of cool.  I selected my rectangle, then clicked move. Then I clicked on the yellow move ball followed by a click on the left line, this snapped the move tool to that line. Next I clicked the little dimension Icon to get a ruller, and a small yellow ball showed up. I clicked on this and dragged it to the center of my circle, now I had a dimension from the circle specified that I could type in.ANSYS-SpaceClaim-Learning-03-13

After playing around a bit, if found a second, maybe more general way to do this.  I clicked on the line I want to position.  One of the icons over on the left of my screen is the Move Dimension Base Point icon. If you click on that you get another one of those small yellow balls you can move. I dragged it over to the center of the circle and clicked. then I can specify the distance as 0.75″

ANSYS-SpaceClaim-Learning-03-14

I’ve got the shape I want, so I pull, using the minus icon to subtract, and I get my cutout:

ANSYS-SpaceClaim-Learning-03-15

If you look closely,you will notice I put rounds on the corners of the cutout as well, I used Pull again.

The last thing I want to do is create the cutout for where the bank logo goes. It is a concentric circle with an arc on the right side.  Saddly, this is the most complex thing I’ve ever sketched in SpaceClaim so I was a bit afraid. It was actually easy.  I made a circle, clicking on the center of the outside arc to make them concentric. The diameter was 1″. Then I made another circle of 2″ centered on the right.  To get the shape I wanted, I used the Trim Away command and clicked on the curves I don’t want. The final image is my cutout.

ANSYS-SpaceClaim-Learning-03-16

Now I can do the same thing, subtract it out, put in some rounds, and whalla:

untitled.3

Oh, and I used the built in rendering tool to quickly make this image. I’ll have to dedicate a whole posting to that.

But now that I have my part, it is time to play with move in 3D.

Moving in 3D

Tyler, who is one of our in-house SpaceClaim experts (and younger) pointed out that I need to start thinking about editing the 3D geometry instead of being obsessed with controlling my sketches. So here goes.

If I wanted to change the size of the rectangular cutout in a traditional CAD tool, I’d go edit the sketch. There is no sketch to edit! Fear. Unknown. Change.

So the first thing I’ll do is just move it around. Grab one of the faces and see happens.

ANSYS-SpaceClaim-Learning-03-17

It moves back and forth, pretty simple.  The same tools for specifying the start and stop points are available. Now, if I ctrl-click on all four surfaces the whole thing moves. That is pretty cool.

ANSYS-SpaceClaim-Learning-03-18

Note: I’m using the undo all the time to go back to my un-moved geometry.

Another Note:  As you select faces, you have to spin the model around a lot. I use the middle mouse button to do this rather than clicking on the spin Icon and then having to unclick it.

Play with it some more. I was able to put draft by using the arcs on the Move gizmo, and if you pull far enough it adds material.ANSYS-SpaceClaim-Learning-03-19

That is enough for this post. More soon.

 

 

 

New Tricks for an Old Dog: Eric Learns ANSYS SpaceClaim – Post 2

Learning More About Pulling

ANSYS-SpaceClaim-Learning-00-00
This post is the second in a series on learning ANSYS SpaceClaim. After over 31 years of CAD use, it has become difficult for me to learn new tools. In this series I will share my experience as I explore and learn how to use this fantastic tool.
If you have not read the previous post, start here.  A table of contents is here.

As I explored ANSYS SpaceClaim in my first try, it became obvious that a lot of capabilities that are in multiple operations in most CAD systems, are all combined in Pull for SpaceClaim.  In this posting I feel like it would be a really good idea for me to really understand all the things Pull can do.

Start with the Manual

Not very exciting or adventurous. But there is so much in this operation that I feel like I will miss something critical if I don’t read up first.   It states:

“Use the Pull tool to offset, extrude, revolve, sweep, and draft faces; use it to round, chamfer, extrude, copy, or pivot edges. You can also drag a point with the Pull tool to draw a line on a sketch plane.”

Let’s think about that for a second.  What it is basically saying is if I pull on an object of a given dimension, it creates an object that is one higher dimension. Point pulls to a curve, a curve pulls to a face, and a face pulls to a solid. Kind of cool. The big surprise for me is that there is no round or fillet command. To make a round you pull on an edge. This is change.

Pull some Stuff

I started by reading my block with a hole back in.

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This fillet pull thing scares me so I thought I’d confront it first. So selecte Pull, and selected an edge:

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Then I dragged it away from the block. Nothing. You can’t create a surface that way. Then I dragged in towards the center. A round was created.

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If anything, too simple. Back in my day, adding a round to an edge took skill and experience!

So next I think I want to try and change the size of something. Maybe the diameter of the hole. So I select the cylinder’s face. Is shows the current radius. I could just change that value:

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Instead I drag, and while I do that I noticed that there are two numbers, the current radius and the change to the radius!  Kind of cool. No, really useful.

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You use tab to go between them. So I hit tab once, typed 3 then tab again (or return) and I get a 8 mm diameter.  I like the visual feedback as well as the ability to enter a specific change number.

Next thing that I felt like doing was rounding a corner. Put a 5mm round on the corner facing out:

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So I grabbed the point and dragged, and got a line.

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Remember, it only goes up one entity type – point to curve. Not point to surface. So I ctrl-clicked (that is how you select multiple entities) on the three curves that intersect at the corner:

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Then I dragged and got my round.

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Pulling Along or Around Something

This are all sort of dragging straight. After looking at the manual text it seems I can revolve and sweep as well with the Pull operation.  Cool. But what do I revolve or sweep around and along?  Looking at the manual (and it turns out the prompt on the screen) I use Alt-Clicking to define these control curves.  Let’s try it out by revolving something about that line I mistakenly made.

I click on one of the curves on the round. then Alt-Click the line – It turns blue. So there is a nice visual clue that it is different than the source curve.  Now I’ve also got spinny icons around the curve rather than pull icons.

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So I drag and… funky revolved surface shows up. I had to spin the model to see it clearly:

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Let me stop and share something special about this. In most other CAD tools, this would have involved multiple clicks, maybe even multiple windows. In SpaceClaim, it was Click, Alt-Click, Drag.  Nice.

Using the Pop=up Icons

As you play with the model you may start seeing some popup icons near the mouse when you select geometry while using pull. The compound round on the block is complicated, so I spun it around and grabbed just one edge and pulled it in to be a round.  Then I clicked on it and got this:

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Not only can I put a value in there, I can drop ones I use a lot. I can also change my round to a chamfer, or I can change it to a variable radius. This is worth noting. In most other CAD tools you pick what type of thing you want to do to the edge. Here we start by dragging a round, then specify if it is a chamfer or a variable.

The variable radius is worth digging more in to.  I clicked on it and it was not intuitive as to what I should do. Let’s try help. Search on Variable Radius… duh. Click on the arrow that shows up and drag that. There are three arrows. The one in the middle scales both ends the same, the one on either end, well it sets the radius for either end.

ANSYS-SpaceClaim-Learning-02-13Reading more I see if I hold down the CTRL key and click on the arrow, I can drag a new control point along the edge. I can type in a percentage as well.  Very useful.

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Clicking on a control point and hitting delete, gets rid of them.

That’s just one icon that pops up.  Playing some more it seems the other icons control how it handles corners and multiple fillets merging… something to look at as I do more complex parts.

The other popup I want to look at is the Up To one.  It looks like an arrow on a surface.  In other tools I extrude, cut, revolve all the time to some other piece of geometry.  This is the way to do it in Space Claim.  Let’s say I want to pull a feature to the middle of my hole. First I sketch the outline on a face:ANSYS-SpaceClaim-Learning-02-15

Then I select the outline, and get a popup. First thing I want to do is click on the + sign, because I want to add, not cut, then I click on the Up To and then select the axis of the hole:  ANSYS-SpaceClaim-Learning-02-16

That is enough for pulling and for today.  In the next session it may be time to explore the Move command.

 

 

 

 

 

 

 

 

 

New Tricks for an Old Dog: Eric Learns ANSYS SpaceClaim – Table of Contents

ANSYS-SpaceClaim-Learning-00-00This post is a table of contents to a series about ANSYS SpaceClaim. After over 31 years of CAD use, it has become difficult for me to learn new tools. In this series I will share my experience as I explore and learn how to use this fantastic tool.

  1. Introduction, Getting Started, The Interface, A Block with a Hole in It
  2. Learning More About Pulling
  3. Adding Complexity and Moving