In Search of a Better Design with Topology Optimization

When reducing the mass of your models, are you also optimizing for other important design elements such as thermal performance, fabrication constraints or if the casting needs to be water-tight?

Thermal problems are very common in engineering design such as automotive powertrain, electronic cooling system, etc. Topology optimization can also be applied for thermal analysis to improve the cooling performance or for coupled thermal-mechanical analysis to improve the thermal and structural performance simultaneously. Continue reading

Emirates Team New Zealand Wins the 2017 America’s Cup

From all of us at ANSYS, we want to congratulate the team of Emirates Team New Zealand who just won the 2017 America’s Cup. Wining the America’s Cup is a feat in sailsmanship, a feat in teamwork, but also a feat in engineering.

What I love during the America’s Cup season is that all of my colleagues and friends ask me about the competition as if I was an expert (Hint: as you can see on the picture, I am a more of a Sunday sailor than a high tech boat skipper). What I can talk about, however, is some of the technology behind the amazing boats that compete in the America’s Cup. Continue reading

Simulating Accurate Combustion Dynamics with Lean Premixed Combustion

Stringent emission regulations force the gas turbine combustor community to come up with new designs. Lean Premixed combustion (LPM) is gaining popularity to meet the emission regulations. However, lean combustion process is prone to other issues like combustion instabilities and noise.

Self-excited combustion instabilities in a gas turbine play a vital role in the lifecycle of combustor, noise generation and pollutant formation. If the instabilities in the combustor dominate at natural modes, there are risks of resonance that can lead to bursting damage to the combustors. Therefore, it is necessary to understand the combustion dynamics performance of a given lean premixed combustor. Continue reading

ANSYS and Synopsys Announcement at DAC 2017 – #54DAC

ansys synopsys partnership semiconductors DACSemiconductors touch every aspect of our lives — from the computers that we work on to the automobiles we drive to the medical devices that keep us healthy. As these amazing chips become smaller and more packed with functionality (the latest NVIDIA graphics chip has 21 billion transistors!), designing and producing them becomes far more complicated. Yet increased demand for smaller, more powerful integrated circuits is increasing so companies can create the products of the future. Continue reading

Accelerating Multiphysics Multi-Scale Signoff at #54DAC

54th Annual DACI’m happy to announce that our team will once again be showcasing our industry-leading solutions at the 54th Annual Design Automation Conference (#54DAC) in Austin, TX. I invite you to stop by and meet with our domain experts in booth 647, from June 19-21, to learn how our industry-leading technology can help meet your SoC design challenges with production-proven solutions. Continue reading

Fast, Accurate and Reliable Turbomachinery Simulation with Harmonic Analysis – Meet me at the Turbo Expo to learn more!

Transient blade row simulations in turbomachinery are needed either to improve the aerodynamic performance predictions or because the flow interaction we are trying to resolve and predict is unsteady in nature such as aeromechanical, aerothermodynamic or aeroacoustic interactions. Because the blade pitch is not similar between the rows of turbine or compressor, a transient blade row simulation will usually require the modeling of the full wheel (or full geometry). This constraint renders these simulations not practical and in many cases prohibitive as analysis or design tools. Continue reading

Interactive Script-defined Tools Change the Game in Modeling

If you turn on the TV or browse the internet these days, automation is a familiar topic. From smart homes to learning thermostats, the drive to save time and effort by automating repeated tasks is everywhere. We use words like ‘smart’ to indicate that our devices are no longer one-size-fits-all but instead adapt and can be programmed to better suit our needs and behaviors. So, too, should be the case with our engineering software! That is why we have spent over a year to add scripting, a broadly applicable interface for automation and customization of modeling, to the ANSYS SpaceClaim geometry modeling environment.

In a previous blog post, we introduced SpaceClaim scripting and how it can automate repetitive or tedious tasks. With ANSYS 18.1, we’ve taken it a step further and made it easier to share and use SpaceClaim scripts outside of the editing environment. By publishing scripts to dedicated buttons in the user interface or calling them from within a Workbench script, you can now use the power of scripting in more places than ever before. Furthermore, we have extended the interaction with scripts to allow for user input of selections and values during execution. Let’s take a closer look at these improvements. Continue reading

Digital Prototyping for More Powerful Pumps

Routine maintenance of sewer pipes is necessary to prevent clogging, cracking and failure in the long run, saving sewage companies considerable time and money. FMC Technologies, which makes reciprocating pumps used to force water at high pressure through sewage pipes to clean them, turned to engineering simulation to design their latest product when customers began demanding smaller, lighter pumps with a higher output pressure. These pumps would be easier for the operator to move and place for optimal operations in the field. Also, reducing size and weight would make the pumps less expensive to purchase, easier to maintain and more energy efficient.

sewer pipe

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Lightening the Load with Composites and Digital Prototyping

Airlines and aircraft manufacturers are doing everything they can to lower their costs, including lightweighting every component possible, which can improve fuel efficiency. The industry spends more than a hundred billion dollars on fuel every year. While the price of oil is relatively low today, manufacturers and airlines must look ahead to the more than 25-year life span of the average airplane, assuming someday prices will rise again. Cost is a major driver, but the industry is also committed to reducing emissions during flight, and reducing fuel burn from the engine helps achieve this goal. Lightweighting, then, is one of the most important trends in the aerospace industry, and using composites, that can offer the required strength but at lower weight than metals, in manufacturing is a key strategy.

aircraft cargo area

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Additive Manufacturing – Re-engineering Engineering

On the 11th of June I, along with quite a few of my colleagues and a number of our customers will be heading to Sweden to the NAFEMS conference. I’ll be there to talk about our work in the area of Additive Manufacturing.

Additive manufacturing is the poster child of the engineering world right now. There are other posts on the web and on the ANSYS blog talking about this and what the opportunities are that it brings. But I wanted to talk about the changes that must make to the whole product development process.

It’s pretty well understood that product development is pretty well down the path to shift away from a time when simulation was used to figure out why something broke. Now simulation is more routinely being used up front in the design process to develop products that are, more often, right first time. Continue reading