Importance Measure Analysis for Use in Dynamic Performance Design of a Co- cured Composite Damping Instrument Panel

• Published in: 东华大学学报（英文版） Vol. 34; no. 6; pp. 780 - 783
• Main Author: 郝文锐;梁森
• Format: Journal Article
• Language: English
• Published: Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, China%College of Mechanical Engineering, Qingdao Technological University, Qingdao 266033, China 01.12.2017
• Subjects: composite material; damping membrane; multilayer sandwich structure; dynamic performance; importance measure analysis
• ISSN: 1672-5220
• DOI: 10.3969/j.issn.1672-5220.2017.06.013

For the best dynamic performance of a co-cured composite damping instrument panel with light weight and high strength, a multilayer sandwich structure with polymethaerylimide （PMI） foam combined with embedded and co-cured composite damping structure is proposed. The struetue can maintain the excellent mechanical properties of composite materials, and achieve the damping and light effect at the same time. Input variables which may affect the dynamic performance of the instrument panel were selected and variance based importance measure was analyzed through multi- finite element method （FEM） analysis. Using the results of the importance measure analysis, with other design requirements, the important design variable was optimized and an instrument panel with the best dynamic performance under the requirements of light weight and high strength was obtained. The structure of the instrument panel can provide reference for the design of precision, high speed, and dynamic composite component. The importance measure analysis of dynamic performance of the instrument panel can provide a reference for relative design.