Altair 的 Squeak and Rattle Director (SnRD) 使電腦輔助工程 (CAE) 工程專家和初學者都能在早期設計階段快速識別並消除產品中的異響。通過在簡化的半自動化流程（已完全集成到 Altair HyperWorks™ 環境中）中使用一套新工具和新方法，SnRD 簡化了原本複雜且耗時的任務。

ESL Development Based on Simulation - Application example The body stiffness has a major impact on the Squeak & Rattle performance of a car. Since the body structure of electrical/autonomous cars will differ clearly from traditional bodies, an enhanced requirement is needed to limit the distortion in the closure openings. This webinar presents a new approach of defining a requirement based on closure deformations using an equivalent static load (ESL), which considers both the reduction from a complete vehicle to a BIG and from a dynamic load to a static load. In addition, an example is shown how ESL can be used as input for body optimization. Presenter: Viktor Jonsson | CAE Engineer (Consultant), CEVT

揚聲器設計和分析（尤其是對於更複雜的產品、系統或元件）通常需要構建多個模擬模型。

Reducing the presence of interior Squeak and Rattle (S&R) noises has become an on-going trend within the Automotive and Aerospace communities. Read more to see how Ziegler's PEM database helps to identify eliminate this phenomena.