Editor’s note: A special thank you to the Terrafugia Engineering Team for compiling today’s blog post.
From conceptual design to manufacturing, we use simulation tools such as ANSYS® Mechanical™ and ANSYS Composite Prep-Post™ to significantly reduce development time and costs. Our senior engineers, Mark Corriere and Nicholas Tucker, have been leading the analysis and simulation charge on the Terrafugia Transition® and have used this iterative process to increase confidence in the physical structure.
Terrafugia Transition – example of a frontal load case analysis
This is a highly visible topic that we’ve found a lot of people are interested in learning more about, so we’ve teamed up with ANSYS for a webinar at 1pm ET, this Thursday, March 6th, to discuss the technical challenges and design process of developing the Terrafugia Transition®, the premier flying car. The Transition® addresses the limitations of typical general aviation aircraft by extending the multi-purpose flexibility of its driving capability. Continue reading
Our Tech Tips for reliable turbomachinery blade development looks a little different this month because (unbeknownst to me) our IT department is moving some equipment this weekend, and well, I didn’t want you to miss out, so we’re cross-publishing this one on turbomachinery here on the blog!
Turbomachinery Blade Development with Aero-Mechanical Simulation
Engineers need advanced simulation tools to enable them to meet customer demands for more-efficient and reliable high-performance machines. Engineers must accurately predict aerodynamic performance across an increasingly wide range of speeds and operating conditions, and they also must guarantee reliability in the design. For example, they need to ensure that blade vibration will be damped across the operating range and that cyclic unsteady loading will not impact design life. Continue reading
Stacey Cook (USA) performing with the Rossignol skis
Wow, the 2014 Olympic Winter Games in Sochi have been amazing and make me even more impatient to go to skiing in early April. I’ll especially remember three of the sporting events. First, Bart Swings from Belgium finished in fourth place in the 5,000-meter speed skating just behind a fully Dutch podium. Maybe aerodynamic simulation could have improved his performance and delivered him a place on the platform. There was also some great ski jumping where the skiers literally flew, and I found a flapping ski to perfectly illustrate fluid–structure interaction. I don’t know if this flapping is good or bad for performance. What do you think? Finally, I’ll remember the breathtaking downhill race. Continue reading
When I look back over the last decade at the trends in CAE simulation, one thing that stands out is the increase in the general complexity of models being investigated. Today, with progresses in computing power and parallel computing, 3-D simulations are commonplace and geometries are less and less simplified. As a result, many CFD engineers choose to spend less time on geometry simplification and clean-up of corrupted geometries (for example gaps or holes) and solve larger models using the power of parallel simulations.
Prior to CFD analysis, we often have to extract the fluid volume of a given geometry. After all, we CFD engineers are often most interested in what is happening inside or outside the solid objects! Extracting the fluid volume from solid CAD entities using a Boolean tool at the geometry level is a great strategy for simpler geometries but can become extremely troublesome when the number of parts in an assembly increases and gaps or holes (geometry imperfections) exist. When you are looking at cases containing hundreds or thousands of parts, most engineer’s (including myself!) eyes start to glaze over at the very thought of preparing the geometry for analysis!
The Sochi 2014 Winter Olympics are in full swing and, of course, any respected blog must talk about it! While there are many topics of great interest, I was looking for a story or achievement that may not be that obvious. Found one!
Did you know that Ferrari is racing in the Olympics? No, we will not see a Ferrari car racing in a cross country ski competition — although would be great to watch! But Ferrari is a key part of the Italian bobsleigh design team and did numerous computational fluid dynamics simulations of the bobsleigh. They studied the flow around the bobsleigh, around and between the racers, etc. The goal, of course, was to reduce the drag to ensure maximum speed on the track. Continue reading
ANSYS 15.0 contains a number of amazing achievements in the area of high performance computing (HPC) for the Mechanical APDL product. The performance is up to 5 times faster than previous releases, especially at higher core counts, by means of improved domain decomposition algorithms.
In addition, new parallel functionality was added in this release. One of the most important new features was the subspace eigensolver for vibration analyses, which supports distributed memory parallel and can be several times faster than the widely used block Lanczos eigensolver. Continue reading
Developers rarely have the luxury of pausing to look back. Still, it is a good and necessary exercise to take some time to assess the relevance of a particular release amid the hustle and bustle of new development, release activities, and planning.
Fortunately, most ANSYS partners have a close relationship with the user base, and we can count on many of them to gauge customer reaction to a given release. Recently, I came across our colleague and channel partner Eric Miller’s blog on ANSYS Mechanical 15.0. Eric chose ten of what he considers to be the “coolest” features in both ANSYS Mechanical and ANSYS Mechanical APDL.
In his concluding thoughts, Eric wrote, “The hard part for me in writing this posting was picking the top 10.” We agree! If Eric’s comments have heightened your curiosity, I have identified five great additional features of ANSYS Mechanical APDL R15 to complement his list. Continue reading
As each week begins, I realize what a privilege it is to work with leading HPC technology providers like Intel, NVIDIA, Dell, HP, IBM and many others. Apart from the pleasant inter-social aspects of our weekly meetings, these collaborations enable us to provide simulation solutions optimized on the latest computing platforms. I strongly believe this is necessary because the computing landscape changes so quickly. Our customers want to take advantage of the latest HPC technologies and expand the scope of what they can accomplish with simulation.
One example of a strong partnership is NVIDIA. As a result of this partnership, ANSYS and NVIDIA have developed GPU-accelerated solvers and algorithms across our full range of multiphysics solutions. We were one of the first commercial engineering simulation providers to introduce structural mechanics support of GPU computing, and we released the first major commercial GPU-accelerated fluid dynamics solver of its kind with ANSYS 15.0. Continue reading