副翼刚度模拟器优化设计与分析

副翼刚度模拟器是对副翼作动器的支撑刚度进行参数模拟的装置,是航空地面载荷试验中的关键器件,研究副翼刚度模拟器的刚度随位置的变化规律有利于其设计和应用,具有重要的工程价值。建立力学模型,提出刚度折减系数,探讨刚度模拟器的刚度特性;进行模拟器刚度仿真,并通过刚度测试试验验证力学模型和仿真的正确性;以目标刚度对距离的敏感性对模拟器的厚度进行优化设计。结果表明:提出的刚度折减系数可快速预测模拟器的刚度特性,7 mm是模型刚度板的最优厚度。

Design and verification of aileron stiffness simulator

Aileron is a device to simulate the support stiffness of aileron actuator. It is a key device in aviation ground load test. The research on the variation law of aileron stiffness simulator with position is beneficial to its design and application, and has important engineering value. In this paper, the mathematical model is established, the stiffness reduction factor is proposed, and the stiffness characteristics of the stiffness simulator are discussed; the stiffness simulation of the simulator is carried out, and the correctness of the mathematical model and simulation is verified through the stiffness test; the thickness of the simulator is optimized based on the sensitivity of the target stiffness to the distance. The results show that the stiffness reduction factor can quickly predict the stiffness characteristics of the simulator, and 7mm is the optimal thickness of this model stiffness plate.