最新の車両振動騒音シミュレーション技術

摘要

近年の自動車開発の現場においては，CAEによる図面rn段階での性能予測や品質向上は，車両開発を効率化するrn上で重要な役割を担っており，不可欠な工程となりつつrnある．%To meet the increased demand of higher performance, more environmental friendliness and better quality, the more advancing CAE technology is required. This paper describes the latest sound and vibration simulation technology, such as the nonlinear idle vibration analysis by using a multi-body dynamics, the body modeling method including the characteristics of the trim for mid-frequency region and the new analysis method for an effective countermeasure.