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首页> 外文期刊>International journal of industrial and systems engineering >A novel kind of electrohydraulic loading system based on friction for actuator test
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A novel kind of electrohydraulic loading system based on friction for actuator test

机译：一种新型的基于摩擦力的电液加载系统进行作动器测试

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摘要

Conventional electric or electrohydraulic load simulator is disturbed by the motion of the tested system. To eliminate the strong motion disturbance and improve loading performance, a novel kind of friction electrohydraulic loading system is proposed. The mechanism of friction electrohydraulic loading system is described in detail. The math model for the loading torque and the input signal has been deduced, which indicates that this proposed friction electrohydraulic loading system has no disturbances resulting from tested actuators under ideal conditions. However, friction coefficient is time-varying and uncertain. The friction device increases the load inertia of the actuator. The additional inertia may affect the loading performance. The structure mechanism has been optimised to reduce the rotary inertia. To verify the loading performance of friction electrohydraulic loading system, simulations and experiments are carried out. Compared with conventional electrohydraulic load simulator, the theoretical analysis and experimental results validate the feasibility of the friction electrohydraulic loading method. The novel friction electrohydraulic load simulator, with a simple control principle and easy engineering constructability, can provide accurate torque simulation for actuator test.
机译：常规的电动或电动液压负载模拟器受测试系统的运动干扰。为了消除强烈的运动干扰并提高加载性能，提出了一种新型的摩擦电液加载系统。详细介绍了摩擦电动液压加载系统的机理。推导了加载扭矩和输​​入信号的数学模型，这表明该建议的摩擦电动液压加载系统没有在理想条件下经过测试的执行器引起的干扰。但是，摩擦系数是随时间变化且不确定的。摩擦装置增加了致动器的负载惯性。额外的惯性可能会影响加载性能。优化了结构机制以减少旋转惯量。为了验证摩擦电动液压加载系统的加载性能，进行了仿真和实验。与常规电液载荷模拟器相比，理论分析和实验结果验证了摩擦电液载荷法的可行性。新颖的摩擦电动液压负载模拟器具有简单的控制原理和易于工程的可构造性，可以为执行器测试提供准确的扭矩模拟。

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