CFD and Structural Meshing: Who Moved My Node?

meshing“Meshing”… Usually throwing this single word to a group of structural or CFD analysts will start interesting and passionate discussions. Meshing is definitely a key part of the simulation process and requires attention. As analysts, how many hours did we or do we spend on meshing? Probably too many —  especially if you have been in the simulation world for many years and started when automation of meshing was not so common. But after all, meshing is just one of the tools that we need to get accurate results and we should spend more time looking at simulation results than meshing our models. Continue reading

How to Apply a Harmonic Base Excitation Natively in ANSYS Mechanical Workbench 16.0

In a previous post, I have presented how to apply a harmonic base excitation in ANSYS Mechanical 15.0 using three different techniques. Among those techniques, we had the great ACT extension that has received a great attention due to its ease of use and practicality.

ANSYS 16.0 offers the capability of applying a harmonic base excitation natively, and without the need for the ACT. Acceleration applied as a base excitation uses the Enforced Motion Method. Continue reading

2015 Automotive Simulation World Congress – Call for Presentations

ASWC 2014 presentation auto safetyWhat do Tesla Motors, BMW, Honda, Toyota, Ferrari, Denso, Panasonic, SL Corporation, Cummins, Tenneco, and Honeywell, have in common? Well, not only are they leaders in the automotive renaissance, but they all delivered presentations on leading-edge simulation at the 2014 Automotive Simulation World Congress. Continue reading

Magnetoelasticity: A 20-Year Journey from Cornell to Michigan Tech to ANSYS INC.

I was reminded of Professor Francis Moon, Joseph C. Ford Professor of Engineering Emeritus, when I visited Cornell University this summer for the 2014 Engineering Development Forum. You see, 20 years earlier I had just completed my PhD dissertation in the area of magnetoelastic buckling, a topic that was initiated by Professor Moon in 1968. His breakthrough research created immense interest around magnetoelasticity in the research community. Continue reading

Getting the Right Prosthetic Hip Implant Positioning

I’ve had many conversations with customers who struggle with their reality that it can be very costly and time-consuming for manufacturers to predict the performance of medical devices. They wonder how to address these problems using modelling and simulation to help evaluate devices at an early stage of their development. Given the recent success of the Medical Device Innovation Summit, it was clear to me that there are a lot of exciting developments taking place by using ANSYS for this purpose, whether it involves orthopaedic implants, stents or other devices. Continue reading

Stay CAD Connected

image of CAD parameters geometryRecently my colleague, Simon Pereira, published his blog on the use of parameters with PTC’s Creo CAD system.  I don’t think we can stress enough the importance of the connection between your CAD system and your simulation tool, be it FEA, CFD or electronics.

All simulations start from a geometry. The geometry can be a very early version of a given design or a manufacturing-ready version of it. You then need to import it into your simulation tool to analyze it. Continue reading

How to Use Creo Parametric Parametrically with ANSYS Workbench

Creo WorkbenchMany of you are using CAD tools like Creo Parametric along with ANSYS Workbench, but some of you are not using them parametrically. Of that group, there are probably a few who just really enjoy irony (and probably typewriters and rotary dial phones). However, others have been asking about how to link these tools together, or how to define parameters in Creo, or how to build robust parametric models, or how to parameterize settings in Workbench, or how to create tables of design points. These things are not hard to do, so I put together a video to illustrate. Continue reading

Robust and Reliable Design – Academic and Industrial Approaches

golden linkRecently, several members of the ANSYS DesignXplorer development team were invited to attend a conference in Paris on robust and reliable design. It was organized by IFMA (French Institute of the Advanced Mechanics), PHIMECA Engineering and NAFEMS. The purpose of the conference was to exchange experiences, problems, approaches and solution methods between industrial and academic people in the domain of uncertainties, reliability and robustness. Continue reading