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针对转向系统振动CAE技术进行探讨,包括网格划分原则、连接关系简化,分析方法等。以某车转向系统为例,建立并修正能反映其本身动态特性的有限元模型,在此基础上采用有限元法对某车的转向系统进行仿真计算,并与实车转向振动台试验进行对比研究。对比结果表明,仿真计算结果对试件在共振峰频段的动态响应提供较好的预测模态分析和频响分析。从而,CAE振动技术能够有效地进行系统辅助开发和设计,是产品创新设计水平的提升和经验积累的必备手段。
Aiming at the vibration CAE technology of steering system, this paper discusses the principle of meshing, the simplification of connection, the analysis method and so on. Taking a vehicle steering system as an example, a finite element model that can reflect its own dynamic characteristics is established and corrected. Based on this, a finite element method is used to simulate the steering system of a vehicle and compared with the actual vehicle shaking table test the study. The comparison results show that the simulation results provide good predictive modal analysis and frequency response analysis for the dynamic response of the specimen in the formant frequency band. Thus, CAE vibration technology can effectively assist in the development and design of the system. It is an essential means to enhance the level of product innovation and design and experience accumulation.