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Electro-Hydraulic Servo Actuator Health Evaluation Based on Feature Probability Distribution Relative Entropy
Author(s): 
Pages: 140-142
Year: Issue:  10
Journal: Measurement & Control Technology

Keyword:  概率密度相对熵伺服作动器健康评估;
Abstract: 针对电液伺服作动器早期故障信号的微弱性和不易检测性,提出了一种基于故障特征概率分布相对熵的健康评估算法.采用离线训练对正常状态特征概率密度进行参数估计,在线监测作动器特征概率密度分布相对于正常状态的相对熵,通过判断相对熵的值对伺服作动器的进行健康评估.仿真结果证明了该方法的可行性和有效性.
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