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车辆综合传动装置悬置系统振动解耦与优化设计
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摘要
基于综合传动装置悬置系统的6自由度耦合振动模型,利用参数最优化算法,提取出使悬置系统振动充分解耦、振动频率配置良好的悬置系统的设计参数(刚度)。随后依据优化得到的参数设计综合传动系统的悬置支撑系统,并利用拓扑优化方法对悬置系统的金属骨架进行结构修正,应力和模态分析验证其结构动态性能提升和轻量化设计的合理性。最后对悬置系统进行稳态振动试验,结果表明振动优化解耦的方法能够有效地提高悬置系统减振性能,亦证明金属骨架结构修改能够合理地改善系统的动态特性。
Based on six- freedom coupling vibration model of integrated transmission mounting system,a optimization algorithm is used to extract the best design parameters(stiffness) of mounting system making the mounting system fully decoupled and frequency well configured.Subsequently,the optimal parameters are used to design integrated transmission mounting system,then the topology optimization is applied on the metal frame of mounting system to modify structure,the stress and modal analysis results verify the improvement of structural performance and the rationality of lightweight design.Finally,steady state vibration test is performed on the integrated transmission mounting system.The test shows that through using the vibration optimal decoupling method the damping performance of integrated transmission mounting system improves effectively,and it also proves that the structural modification of metal frame can promote the dynamic characteristics of mounting system.
引文
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