You may be surprised to learn that a standard passenger jet can have 30 to 50 antennas protruding from the aircraft’s external surface, producing drag forces that can drastically reduce fuel efficiency at a time when airlines are trying to reduce energy consumption. Most antenna designs are engineered for safety purposes, such as air traffic control, traffic collision avoidance, instrument landing systems and distance measuring equipment. Increasingly, antennas are being added to meet passenger demand for more and faster Wi-Fi access, in-flight TV and cellphone applications.
Antennas are mounted on the exterior of today’s airliners
As students at the University of Florence, we aren’t just racing to class, we’re racing around Europe. Last season was particularly exciting for our 35-member Firenze Race Team (FRT). We designed two new single-seater cars — the FR-17T and FR-17DT — and introduced them at Formula Student competitions in Italy and Germany.
Startup companies are using ANSYS software in exciting and groundbreaking ways. It should come as no surprise then that some of my favorite articles in our ANSYS magazines (ANSYS Advantage and Dimensions) in 2017 were generated with the assistance of startups. I think the enthusiasm of these hardworking teams of entrepreneurs who participate in the ANSYS Startup Program is demonstrated in these articles about how their pioneering products are being developed.
Many startups literally begin in a garage. For example, Kyle Doerksen, Founder and CEO of Future Motion, inventor of the Onewheel motorized skateboard, prototyped his idea in his garage before launching a Kickstarter campaign. With the help of engineering simulation his team quickly moved from prototype to mass production. Future Motion has shipped more than 10,000 products, expediting many short commutes and creating a new form of transportation and recreation along the way.
Electronic devices — with well-designed signal integrity (SI) — have transformed the way we communicate, work, learn and entertain. Around the globe, we find smart phones, fiber-optic and wireless networks, pocket-size computers, LED screen displays that mimic paper and unmanned aerial vehicles (UAVs) that deliver packages. Automobiles are filled with electronics that control engine functions, keep wheels from skidding, avoid accidents, direct our travel routes and, now, drive themselves. Aircraft are equipped with radar, fly-by-wire systems and airborne communications. And the innovations keep coming…
Multihull ships create engineering challenges that are “out of range” of conventional ship design techniques. They require complex, CFD analysis to optimize multiple performance variables like resistance, endurance, stability, seakeeping, etc. In this article, we take you behind the scenes at KUASAR MARIN Engineering Inc., where we leveraged ANSYS Fluent to explore design iterations for a three-hulled, high-speed passenger ferry that could compete with existing two-hull catamarans.
If you’ve traveled by plane in recent years, you know the airport security drill: Put all your possessions through the X-ray detector, empty your pockets and step into one of the full-body scanners — or millimeter-wave holographic scanner, to use its official name. After you raise your hands above your head, the scanner sends out millimeter waves (mm-waves) that penetrate your clothing and bounce off your skin — or any other object you might be trying to conceal under your clothing, like a weapon of some sort. (The mm-wave radiation is 10,000 times less powerful than a single cellphone call, so you need not be concerned about any health effects.) An antenna array in the sweeping scanner device detects the reflected mm-waves and reconstructs an image of your body.
The Laboratory for Environmental Flow Modeling at the University of California, Riverside, has used ANSYS Fluent software to model a variety of environmental flows. As a third year Ph.D. candidate student in Mechanical Engineering, I recently evaluated the influence of roadside vegetation barriers on the near-road air quality using Computational Fluid Dynamics (CFD), as part of a research team that included my colleague Seyedmorteza Amini and my advisor Dr. Marko Princevac.
Exposure to traffic-related air pollution leads to public health concerns such as respiratory problems, birth and developmental defects, cardiovascular effects and cancer for people who live and work near major roadways. The near-road air quality can be improved directly by deploying vehicle emission control techniques, using alternative fuels or electric vehicles (EVs), or via passive pollutant control and roadside configuration design such as solid and vegetative barriers. Continue reading →
“Please fasten your seat belts, we may encounter some turbulence as we enter the clouds ahead,” the pilot announced on my flight back from a big computer conference in Denver last month. The lady sitting next to me leaned over and admitted: “I never really understand what the pilot means by that announcement.” It reminded me that you may also need some clarity about cloud computing for your ANSYS simulations.
Bumps along a cloud-computing journey can be caused by concerns about security and where the data is stored, lack of licensing options and/or end-user productivity. We have taken steps to ensure you can move in and out of the cloud smoothly, and in analogy with what I just wrote: in our case “no seat belts required.”
Nature is full of amazing materials. Wood and bone, for example, are natural composites with finely-tuned microstructures. They have optimized fiber alignment for enhanced strength. At Fortify — an additive manufacturing startup — we wondered if harnessing the power of natural composites in 3-D printing could help us to create high-performance end-use parts.
Our observations of the natural world led to the development of our fluxprint technology, which utilizes magnetic fields in a 3-D printer to align carbon fibers throughout a printed composite part. This process results in high-performance components with high-geometric complexity and incredible strength-to-weight ratios. Continue reading →