Simcenter™ 3D FE Model Correlation provides engineers with the necessary tools to align geometric models, compare modes from different solutions, visualize mode shapes side-by-side, and calculate correlation metrics. This enables them to gain a comprehensive understanding of how closely the simulation aligns with the physical test data. By leveraging this software, engineers can confidently assess the accuracy and reliability of their simulations, thereby improving the overall design and development process.

NVH (noise, vibration, and harshness) prediction is a critical process in the automotive industry to ensure customer satisfaction, safety, and compliance with regulatory requirements. Modal analysis is a popular technique used for NVH prediction, involving both testing and simulation. The goal of modal analysis is to measure the natural frequencies, damping ratios, and mode shapes of a structure, which can be used to identify the sources of noise and vibration and make improvements to the design. While modal analysis offers several benefits, such as cost savings and faster time to market, there are also some challenges associated with the technique, including complexity and cost. In this article, we will explore modal analysis for NVH prediction, its benefits, and its challenges.

Aircraft manufacturers are facing stricter regulations for aircraft emissions, including environmental noise, and increased pressure to improve cabin acoustic comfort. Vertical take-off and landing (VTOL) vehicles, currently being developed to enable urban air mobility (UAM), must also be optimized to minimize noise pollution in densely populated areas. This challenges engineering teams to efficiently troubleshoot noise issues and develop quieter aircraft designs without compromising weight and performance objectives. Simcenter™ software and hardware offer a complete solution for detailed acoustic testing and sound engineering. The solution features a number of technological advancements that help engineers perform acoustic measurements more efficiently for both exterior and interior noise.