Last month I had the pleasure of attending the Designers of Things conference in San Francisco. One of my favorite presentations came from Dr. Mike North — host of Discovery Channel shows Prototype This, Outrageous Acts of Science and In The Making — where he discussed the vast scope of technology’s reach in the modern world. In the video he presented, a sensor-loaded unmanned aerial vehicle (UAV) responded to a cell-phone call to pin-point a swimmer in distress and deliver a life jacket to them. What we could only imagine a decade ago, is now fast becoming a reality – intelligent, autonomous, helpful machines.
Electric motors and generators produce vibrations and noise associated with many physical mechanisms. It’s always been of great interest to look at the vibrations and noise produced by the transient electromagnetic forces on the stator of a permanent magnet motor. Thanks to our products that made is possible through a direct coupling between ANSYS Maxwell and ANSYS Mechanical. The process of this coupling is to first carry out an electromagnetic simulation to calculate the forces per tooth segment of the stator. The harmonic orders of the electromagnetic forces are then calculated using Fourier analysis, and forces are mapped to the mechanical harmonic analysis of the second stage. As you might expect, a simulation environment — ANSYS Workbench— is used to integrate a seamless workflow. Continue reading →
Have you noticed that electric machines are everywhere these days? They are present in industrial equipment, cars, planes, household appliances, computers, mobile devices and more. The applications for both large and small motors are just exploding. Power transfer technologies in airplanes, such as the central hydraulic system and flight control actuation, are being replaced with electric motors. Electric and hybrid electric vehicles are powered by electric motors. When you put your phone on vibrate, the pulsation is created by an electric motor! The increased use of electric machines is driven by the global demand for more-automated and power-efficient products. The key is to find a better process to take an electric motor design from start to end. Continue reading →
This week, our ANSYS Convergence Webinar Series wraps up with a focus on Electromagnetics. The explosive growth of wireless communications has generated tremendous interest in low-cost implementations of radio-frequency integrated circuits (RFICs). Learn how design methodology to study and optimize on-chip inductor geometries from Niklas Troedsson of Micrel.
Robin Granger, Roke Manor Research Ltd, will discuss how RF losses resulting in poor antenna efficiency and how the impedance boundary feature of ANSYS HFSS has been used successfully to model this effect, permitting rapid evaluation of alternative designs.
If you missed one of the other great sessions from this series, please visit our Resource Library where you will find recordings of past sessions.
Mention of EMI/EMC-induced automotive system failure in the press last week coincided with one of the bigger technical conferences held annually in Silicon Valley – DesignCon. It was in this conference two years ago that we organized a workshop on chip–package–system simulation methodologies specifically as they pertain to EMI/EMC analysis.
Electromagnetic interference, coupling and susceptibility are complex topics. To predict such an event or occurrence requires design teams separated by organizational boundaries to collaborate effectively “outside” the silos they reside in. An automotive system design company working on the next-generation air-bag control system will be responsible for designing the printed circuit board (PCB) to meet stringent performance, reliability and cost metrics. Its teams typically perform numerous simulations to ensure that the board, by itself, meets the requirements outlined for the team. However, PCBs are passive electrically. They (along with the cables) radiate only when the integrated circuit (IC) that is present on these PCBs performs the necessary operations and generates current flow through the various traces. Continue reading →
To our friends in China — Happy New Year! To our friends in the U.S. — this week is Valentine’s Day and there’s still time to send flowers or chocolates to your loved ones. To our valued customers and engineers around the world — here’s this weeks list of ANSYS webinars, seminars and events for the week of February 11th.
Our existence depends on reactions. They are all around us. Driving to work, we convert the hydrocarbon fuel through a combustion reaction into water vapors and carbon dioxide. In the case where you have those fancy hybrids or electric cars, you still need that electrochemical reaction to take place to draw current and run the electric motor.
We breath air. The oxygen in air helps in burning the glucose in our body and provide us with energy. So, be it a very complicated engine or a biological system like humans, reactions are everywhere. Continue reading →
This week we have four new ANSYS webinars including a continuation of our Ask the Expert series. From San Jose, California at BIOMED Device to the CSIA-ICCAD 2012 in Beijing, China you’ll also find our experts at events where you can meet and discuss the latest advancements in simulation engineering technology.
Let’s begin with the ANSYS webinars. A reminder – if you miss one of our webinars you can access on-demand recordings via our Resource Library within a few days after the scheduled event.
ANSYS Webinars Ask the Expert Series
Improving Productivity with New Features ANSYS 14.5 for Geometry and Meshing
Wednesday, December 05, 2012
4:00 pm EST, 9:00 pm GMT (REGISTER)
A typical simulation workflow requires reading geometry, cleaning it, creating a closed body, generating mesh and reviewing mesh quality. For having a hex dominant mesh, additional geometry decomposition steps may be required. This process can be tedious.
In ANSYS 14.5, there are host of new features in ANSYS DesignModeler (DM) and ANSYS Meshing (AM) that makes preprocessing faster, more efficient and hence resulting in improved productivity for CFD and Mechanical workflows. These enhancements include support of newer CAD releases, usability for DM and AM, improved performance while dealing with large sized CAD geometry and hex dominant mesh in AM. Continue reading →