摘要
车载电子设备隔振支架结构是复杂工作环境下保障电子设备正常工作的关键部件.基于有限单元法、模态分析和结构优化理论,建立支架隔振结构系统动力学模型,分析了支架结构的动态特性.基于等强度原则,将优化设计与可靠性设计理论相结合,建立支架结构优化模型.满足结构安全条件下,实现了对支架结构固有频率的优化设计,避开了原系统的共振区域,减轻了箱体重量,使支架结构设计更加合理,具有一定的理论及工程应用价值.
Electronic equipment support in vehicles is key components for the normal work of electronic equipment in complex work environment. Based on Finite Element Method. modal Analysis and structural optimization theory, the dynamics Model of the support system is set up, also the dynamic characteristics of the support is analyzed. On the basis of combining theories of optimization and reliability design, the model of optimization for the support was established by the theory of intensity equation. Under the condition of structural safety, optimization designs were put in practice with Inherent frequency of the support in order to avoid the resonance regional of original system. The weight of support is reduced and the structure is more reasonable. The method has certain theory and project practical value.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第11期165-168,共4页
Journal of Southwest University(Natural Science Edition)
关键词
支架
有限元
固有频率
优化设计
Support
Finite element
Inherent frequency
Optimal design
