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电动舵机是直升机等飞行器精确制导的关键部件。随机振动与冲击将直接影响其工作特性。基于多软件联合仿真,提出了一种可用于分析力学环境对舵机工作状态影响的新方法。通过UG建立舵机模型,在应用ADAMS分析舵机正常工作时的力学特性的基础上,采用Patran/Nastran完成了随机振动分析和冲击特性分析,得到了振动、冲击激励对舵机结构和工作特性的影响。并利用振动台进行扫频实验,实验结果表明,所提出的建模、仿真及相关分析方法可有效应用于电动舵机以及其他机电结构的耐力学分析与设计中。
Electric servo is a helicopter and other aircraft precision guidance of the key components. Random vibration and impact will directly affect its operating characteristics. Based on the multi-software co-simulation, a new method that can be used to analyze the influence of mechanical environment on the working condition of steering gear is proposed. Based on the analysis of the mechanical characteristics of the steering gear during normal operation by using ADAMS, the random vibration analysis and impact characteristics analysis were completed by using Patran / Nastran. The vibration and impact excitation of the steering gear structure and working characteristics Impact. The experiment results show that the proposed modeling, simulation and correlation analysis methods can be effectively applied in endurance analysis and design of electric servo and other electromechanical structures.