Welcome to Topology-Opt.com

We review topology optimization related applications, research and software in this website.

Due to the immense amount (thousands per day) of spam comments incoming, we cannot read all comments and resort to deleting them all. I hope spammers will give up at one point.

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The journey of a different software developer

As a materials engineer turned software developer, my journey has been quite different than most developers. I started coding with QBASIC around 7th grade with my 486, oen of the first complex piece of software I wrote was a 2D helicopter game of sorts. It had almost a rudimentary physics engine, the helicopters rotor that was just a line, exerted a force, the gravity exerted another force and from this inequality arose the acceleration either up or down, on forward backward depending on the tilt of the rotor. You manually had to adjust the lift of the rotor. Then I assigned a button to equalize the vertical components of the forces, so you could fly straight easily.

More interesting was the missiles that intercepted the helicopter. They were homing the helicopter, at first with a constant speed in the direction the helicopter. That doesn’t work, and they just orbit around. A speed proportional to distance? Doesn’t work at all. An acceleration that’s proportional to the distance vector? Better but still the missile had a hard time connecting with the target. The final solution was a force proportional to the distance, and the difference in velocities. More then 15 years later I realized that I had discovered PD control, variations of which I use a lot now.

My journey continued with Atomistic Simulation course in my masters study, led by our enthusiastic lecturer Kadri Aydınol. We coded an Atomistic Simulation system from scratch with FORTRAN.

The final milestone was at a time I was not really interested in coding. My best friend kept telling me about this new game engine and that I would have fun with it. So I started toying with it, made a lot of physics & vector math related assets and noted that very few people do such things.

For me mathematics and physics is inseparable from actual coding, and thats why I was fortunate to work with clients from all around the world. I dare to tackle problems that most developers do not get near.

Now I want to expand my reach by joining Toptal mobile app developers Network. Coding and researching takes all my time, I can hardly spare time to advertise my work or find new projects. I am hoping that joining Toptal can relieve me from that burden and join me with clients that need my services.

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Toyota’s Lightweight Car Seat

small-toposeat1frontToyota and Materialize designed a topology optimized car seat intended to be 3d printed. (link)

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Lacrosse Head Topology Optimization


Folks at Optimal Device have optimized a Lacrosse head, while taking 3D printing directions into consideration (link).

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Topology Optimization for Morphing Micro Air Vehicles

In this interesting thesis study (link) James R. Elgersma explores the Morphing Micro Air Vehicle wing optimization for various morphed shapes and loads. Also actual Matlab code is presented at the end of the text. Interesting structures resembling insect wings veins structures appear for some load configurations.

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Unmanned Helicopter Optimization

This Unmanned Helicopter optimization by CompoLight is a very nice example of how topology optimization can be applied. There is not much detail about the work, but this picture alone is satisfying.

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Lotus Vehicle Mass reduction study

These documents (link 1 , link 2) by Lotus which is a continuation of a study we previously featured. There are remarkable weight savings but these are mostly due to usage of light wieght materials. How the topology optimization results are incorporated into the design is still not clear, bar a few minute details.

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EPSRC Centre for Innovative Manufacturing in Additive Manufacturing

The EPSRC Centre for Innovative Manufacturing in Additive Manufacturing, is focusing on multifunctional Additive Manufacturing and in one project how it can efficiently used together with topology optimization (link).

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Topology Optimization of Custom Helmets

In a research project by Virginia Tech (link) custom helmets for individual users is being developed with the help of topology optimization.

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Who can benefit from Topology Optimization?

We are reviewing lots of articles and other materials, however someone new to the area may not see in which industries can benefit from topology optimization. So we decided to write a short article on this. So if you are a professional skip this article.

What springs to mind when one hears topology optimization is the minimum compliance type. In this type, we specify a volume and certain constraints and forces in the topology optimization software, and it shows us a (nearly) optimum structure which will have the least compliance with the given weight. Minimum compliance implies maximum stiffness. And maximum stiffness is important in many many applications. Maximum stiffness with minimum weight is even more important. It is usually easy to achieve high stiffness even without any simulations, however doing it while constraining weight is hard. And topology optimization excels here. And the resulting structure is generally good in a strength point of view too, as all the structure is loaded efficiently.

So who can use it? The answer is basically anyone that deals with load bearing structures. Its usage in automotive is well known. We have covered its usages in Industrial machinary, buildings, aircraft, ships, wind turbines, medical implants, armor, composites… Anything that has to endure loads can be made better.

If you are not sure how you can use topology optimization, feel free to contact us.

There are other variants of topology optimization. They are not used as frequently. One is compliant mechanism design. In this type we specify some input and output movement and ask the software to find which kind of  structure will satisfy it. For example we want a chair that raises the head rest when someone sits on it, without any hinges etc. So it will deform elastically to give the results that we seek. There are various academic examples, however practical usage is close to none.

Another type is in which CFD is coupled with topology optimization to give some desired results. It is rather flexible (flexibility probably depending on the skills of coder). So one can use it to produce low friction, directional flow (high resistance in one direction low in the other), to give uniform flow, uniform pressure distribution etc. probably limited by the imagination of the user. This type is gaining popularity in related industries. However it is computationally very intensive.

Another type is heat flow optimization. Users can optimize structures that will create highest heat flow. We are not knowledgable in this are so its up to the reader to research if interested.

As you can see there are various types of topology optimization (some not covered). Probably any industrial company can benefit in one form or another.


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ManufSim development build released

Here is our free for all 2D manufacturing game/simulation Manufsim link. (Requires Unity 3D webplayer, which is a nice and popular 3D tool) Please share the link with the people that may benefit from this software, such as students.

Please watch the linked video before opening ManufSim: ManufSim intro video.

It is still in development phase, and is rather unpolished. We want to keep it free and thus we are searching for sponsors. If you are interested please send an e-mail to:

management (at) topology-opt.com.

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