【摘要】 模态灵敏度分析在联合收割机结构优化设计中起着重要的作用。本文首先讨论用有限元摄动来表示的模态灵敏度,然后对4LZ5联合收割机底架进行了实际分析,并得到了一些重要结论,为改进收割机机架设计提供了依据。更多还原

【Abstract】 Desiga sensitivity analysis of vibration modes plays an important role in combine structural design.This paper discusses the design sensitivity expressed by finite element perturbation. According to the theory, the design sensitivity analysis for 4LZ5 combine frame has been done and some conclusions have been drawn. These conclusions provide important basis for engineer to improve combine structural design.更多还原