关键词: 仪表板横梁设计；仪表板骨架；模态分析

Abstract: This paper introduces some important parameters of structural design about cross car beam, such as material selection, beam main and auxiliary pipe beam and other installation support.For the vehicle in road test, considering the mode of the instrument panel beam in the design process, avoid the engine idle condition of the natural frequency and the instrument panel beam mode frequency similar resonance sound, through computer aided engineering (CAE) software analysis of a car instrument panel beam assembly module, and combined with relevant internal standards, the design beam to meet the design requirements, avoid the subsequent beam costs, designed to provide reference for the subsequent similar structure design.

Key words: Design of instrument cross car beam; Instrument panel skeleton; Modal analysis