Pretest analysis of vehicle body frame modal test by means of CAE Technology

摘要：

　　Pretest analysis is a crucial step of the process for experimental modal analysis.A general procedure for pretest analysis of a vehicle body frame has been presented using CAE approach with software Virtual Lab.After the modal parameters are acquired from FEM analysis,the CAE based MAC method is used to optimize the measurement location and direction.The selection of an appropriate set of measurement locations and directions including initial accelerometers placement and test excitation point location are defined based on MAC method by Virtual Lab correlation part.Finally,for purpose of validation,the FEM modal analysis is compared with operational modal analysis.The results comparison showing that the present pretest analysis approach is more accuracy and efficiency.

关键词： CAE approach pretest analysis vehicle body frame NVH

作者: Lu Shouwei

作者单位: BAIC motor powertrain Co.,LTD,Beijing 101108,China

会议类型: 国内会议

会议名称: 2016 Siemens PLM Software 仿真与试验技术大会

会议地点: 大连

会议语种:英文

页码: 1-7

在线出版日期: 2016-07-11（万方平台首次上网日期，不代表论文的发表时间）