Simulating Reality, Delivering Certainty

14
Apr

Automotive Noise Optimization with Simulation Software

Using Simulation Software to Predict Automotive NVH   One of the most pressing challenges for today’s automotive manufacturers is to make lighter cars. A lighter car will maintain a lower level of gas consumption and thus is more eco-friendly. To achieve this goal, many companies switched from aluminum to composite materials and put smaller engines …

13
Apr

Identifying the Acoustic Contribution to Interior Noise

The aerodynamic sources acting on a car side window, generally defined as the small wavelength sources such as turbulent eddies and boundary layer structures, are generally much larger in amplitude than the acoustic sources, those with longer wavelengths. So naturally you would expect that the aerodynamic sources have a much greater contribution on vehicle interior …

12
Apr

Tuning Acoustic Quality of Audio Devices with Simulation

  When designing an audio device, the most important thing for an engineer to consider is the quality of the sound. Quality is what makes the device valuable and differentiates it from competitors. Audio device manufacturing companies experience extremely high product development costs due to repetitive and expensive physical testing. In addition to the need …

8
Apr

Piezoelectric Simulations With Marc

Piezoelectric sensor-actuator technology is often used in high-tech industries like medical, mechanical, automotive engineering and semiconductor markets. Applications of piezo-based ultrasonic sensors range from fuel injectors, flow-rate metering, ultrasonic welding, and high-resolution material testing to medical diagnostics. A piezoelectric finite element analysis involves computation of coupled stress and electric field in certain crystalline materials. In …

7
Apr

Multi-Scale Simulations With Marc and Digimat

Composite materials of various types (unidirectional composites, short fiber reinforced plastics, nano-composites, ceramics, etc.) exhibit highly nonlinear, anisotropic, strain-rate and temperature dependent properties in mechanical, thermal and electrical fields. They often exhibit enhanced performance with respect to density as compared to traditional structural materials. However, simulating composite structures is complicated, and usually requires a micro-mechanical, …