参数同步优化随机共振在牵引传动系统早期微弱故障诊断中的应用

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (17) : 234-240.

论文

尹进田，唐杰，刘丽，刘新波，彭志华，李辉

作者信息 +

Application of parameter synchronous optimization stochastic resonance in early weak fault diagnosis of traction drive system

YIN Jintian, TANG Jie, LIU Li, LIU Xinbo, PENG Zhihua, LI Hui

Author information +

文章历史 +

摘要

为解决传统随机共振存在参数固定或仅对单个参数进行优化的不足，提出一种参数同步优化随机共振方法，该方法首先利用移频变尺度预处理实际大信号，使信号符合小参数条件；然后采用状态转移随机共振同步优化系统参数；最后通过频率恢复实现早期微弱故障特征最优提取。仿真和高速列车牵引传动系统硬件在环故障注入平台试验表明，该方法可以有效地从强背景噪声中检测出微弱故障信号，微弱信号提取和故障诊断的结果证明了其可行性和有效性。

Abstract

Here, to solve the problem of traditional stochastic resonance having fixed parameters or only optimizing a single parameter, a parameter synchronous optimization stochastic resonance method was proposed.Firstly, a real large signal was preprocessed with frequency shift and scale variation to make the signal conform to the condition of small parameter.Then, system parameters were synchronously optimized using state transition stochastic resonance.Finally, the optimal extraction of early weak fault features was realized through frequency recovery.Simulation and tests of high-speed train traction drive system hardware in the loop fault injection platform showed that the proposed method can effectively detect weak fault signals from strong background noise; the results of weak signal extraction and fault diagnosis verify the feasibility and effectiveness of the proposed method.

导出引用

尹进田，唐杰，刘丽，刘新波，彭志华，李辉. 参数同步优化随机共振在牵引传动系统早期微弱故障诊断中的应用[J]. 振动与冲击, 2021, 40(17): 234-240

YIN Jintian, TANG Jie, LIU Li, LIU Xinbo, PENG Zhihua, LI Hui. Application of parameter synchronous optimization stochastic resonance in early weak fault diagnosis of traction drive system[J]. Journal of Vibration and Shock, 2021, 40(17): 234-240

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