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首页> 外文期刊>Advances in Mechanical Engineering >Modeling and Parameter Identification of the Vibration Characteristics of Armature Assembly in a Torque Motor of Hydraulic Servo Valves under Electromagnetic Excitations
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Modeling and Parameter Identification of the Vibration Characteristics of Armature Assembly in a Torque Motor of Hydraulic Servo Valves under Electromagnetic Excitations

机译：电磁激励下液压伺服阀转矩电动机电枢组件振动特性的建模与参数辨识

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摘要

The resonance of the armature assembly is the main problem leading to the fatigue of the spring pipe in a torque motor of hydraulic servo valves, which can cause the failure of servo valves. To predict the vibration characteristics of the armature assembly, this paper focuses on the mathematical modeling of the vibration characteristics of armature assembly in a hydraulic servo valve and the identification of parameters in the models. To build models more accurately, the effect of the magnetic spring is taken into account. Vibration modal analysis is performed to obtain the mode shapes and natural frequencies, which are necessary to implement the identification of damping ratios in the mathematical models. Based on the mathematical models for the vibration characteristics, the harmonic responses of the armature assembly are analyzed using the finite element method and measured under electromagnetic excitations. The simulation results agree well with the experimental studies.
机译：电枢组件的共振是导致液压伺服阀扭矩电机中弹簧管疲劳的主要问题，这可能导致伺服阀故障。为了预测电枢组件的振动特性，本文着重于液压伺服阀中电枢组件的振动特性的数学建模以及模型中参数的识别。为了更准确地构建模型，需要考虑电磁弹簧的影响。进行振动模态分析以获得模态形状和固有频率，这对于在数学模型中实现阻尼比的识别是必不可少的。基于振动特性的数学模型，使用有限元方法分析电枢组件的谐波响应，并在电磁激励下进行测量。仿真结果与实验研究吻合良好。

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