If you’re an engineer who has dealt with large simulation models, you know there’s often a trade-off between accuracy and solution time. Submodeling is a technique you can use to reduce solution time without sacrificing accuracy of results.
A common strategy you can use to look at the overall behavior of an assembly or complex part of a large model is to simplify the model during preparation by removing small details, like fillets and holes. Simplifying models in this way can have a significant impact on run times. This simplification, while not excessively affecting overall model stiffness, may result in lower resolution of localized stresses. What you need, then, is a mechanism that allows you to “zoom in” on these details to examine behavior around specific areas.
Many of our customers are reaping the benefits of the trace import functionality in ANSYS Mechanical, which accounts for the effects of copper distribution on every layer of a printed circuit board (PCB) — or printed circuit board assembled (PBA) — for your thermal stress analysis, modal, shock and random vibration simulations. Just think — you can capture the accuracy necessary to confidently make engineering decisions in a fraction of the time you are currently spending on lumped parameter models. In this post, I’ll give you a brief overview and explanation of the process. Continue reading
Looking back at the past couple of years of extraordinary joint engineering projects SGI and ANSYS have undertaken, it is clear to me that when a synergetic hardware and software partnership is established you, our joint customers, are the clear beneficiary. To that end, I would like to walk you through four such examples.
The first example was outlined over a year ago in my ANSYS guest blog, “Solving the Impossible Electromagnetic Simulation with HPC” where with a “grand challenge” benchmark we jointly demonstrated that the SGI® UV platform and ANSYS HFSS software could solve very large, high frequency electromagnetics problems like cosite analysis and radar cross section (RCS) analysis, as well as allow multiple frequency sweeps to be run without running out of computer system memory. Continue reading
It doesn’t matter what car you drive — it could be a snazzy Ferrari or a humble FIAT Punto — ultimately what we’re all looking for is a car that performs well and maybe saves us a little money at the pump.
The upcoming joint ANSYS-ESTECO webinar on September 15th will discuss just how important a single component, in this case, a tensioner arm, can be. Chain tensioner arms may not be as well known as pistons and gearboxes, but, by maintaining the correct amount of tension on the chain at all times throughout its duty cycle, they are important for reliable operation of the accessory chain drive system. The chain tensioner also helps protect other components, such as the alternator and water pump, from undue stress and premature failure. A well-designed chain tensioner can also help boost engine performance and efficiency. Continue reading
I’ve been involved in engineering simulation for 20 years. Not quite sure exactly how that happened, but none-the-less here we are. Back in 1996, when I was studying engineering, a good part of my course looked at the fundamentals of FEA for structural analysis and CFD for flow simulation. We spent an inordinate amount of time manually calculating how a five-element beam would behave. I dread to think how many trees were sacrificed at the expense of my scruffy algebra.
I learned two key things from this exercise. FEA was incredibly useful —I could get an engineering answer to a reasonably realistic problem by using this approach — and that FEA software was a must if I wanted to do this on a more meaningful model. Continue reading
It is a great pleasure to guest blog for ANSYS again after my post in 2014 entitled Reshaping the Future of CFD Using Mesh Morphing. We continue to increase our commitment to deliver the high-performance mesh morphing technology of RBF Morph and began our new product project at the beginning of 2014.
We presented the first industrial applications at the Automotive Simulation World Congress in Tokyo in October 2014, and officially launched the RBF Morph ACT Extension on the market at the ANSYS Italian UGM in May 2015. At the end of 2015, we posted a free version (with limited functionality) in the ANSYS App Store. Continue reading
On the 18th of February, we’re hosting a webinar showcasing some exciting new methods to increase the number of ways reliable electronic systems can be designed. You can register now but first let me tell you a little about why it’s important.
The proliferation of electronics into every product arena can’t be denied. Electronics bring huge benefits in terms of features and functionality to pretty much any device. This means that electronics are being placed in more varied environments — and subjected to more demanding loads — than ever before. Continue reading
As the year winds down, I thought I’d share some of the most read ANSYS blog posts of 2015 with you. From harmonic analysis to how germs spread when you sneeze, I hope you’ll find these choices as interesting as I did.
SPOILER ALERT: We have some REALLY cool stuff coming in 2016 that you won’t want to miss! If you haven’t subscribed to the ANSYS blog yet, please make sure you do that now.
Editors Note: Today’s Guest Blog is brought to you by HyperXite’s Project Leads at the University of California, Irvine (UCI) who are competing in the SpaceX Hyperloop Pod Design Contest.
What if there was a system of transportation cheaper, faster and most importantly, safer than driving, flying or boating? This next evolution in transportation is the Hyperloop, to design and build a pod that can transport 840 people between Los Angeles and San Francisco at 760 mph while floating on a cushion of air. Developing this technology is, however, a huge endeavor and the SpaceX Hyperloop Pod Design Contest was created to ‘crowd source’ the design of the vessel. Continue reading
Many structural analysis models that use shell elements consist of a large number of bodies that need to be connected together to create a valid analysis model. These structures are typically manufactured by welding, for example ship structures.
There are a number of methods that can be used in ANSYS Mechanical for creating this type of model, which requires the geometry to be meshed and connected. Continue reading