弯扭复合大负载下电动舵机设计及性能试验研究

针对弯扭复合大负载工况下电动舵机快速性与稳定性匹配的问题,在分析有限空间质量约束下舵机设计要求的基础上,采用基于核心部件与系统仿真及试验验证相结合的手段,提出了一种高刚度高功率密度的抗弯扭复合大负载电动舵机设计方法。详细阐述了高功率密度伺服电机和高刚度传动机构的设计过程,并研制了工程样机。试验结果表明:该电动舵机伺服刚度与功率密度得到显著提升,在复合大负载工况下能够实现高动态高可靠稳定运行。

Research on Design and Performance Test of Electromechanical Actuator Combined Large Load of Bending and Torsion

Aiming at the matching problem of speediness and stability of electromechanical actuator (EMA) under combined large load of bending and torsion, on the basis of analyzing the design requirements of EMA with limited volume and weight constraints, by using the components and system simulation and test verification method, a high-stiffness and high-power density EMA design method is proposed. The design process of high-power density servo motor and high-stiffness transmission mechanism is elaborated, and the engineering prototype is developed. The test results show that the servo stiffness and power density of the EMA are significantly improved, and it can operate with high dynamics, high reliability and stability under combined large load conditions.