基于D-S理论和AMESim技术的液压缸泄漏故障诊断仿真研究  

Simulation Study on Leak Fault Diagnosis of Hydraulic Cylinder Based on D-S Theory and AMESim

作　　者：蔡伟[1] 徐文华[1] 李慧[1] 

机构地区：[1]第二炮兵工程大学二系,陕西西安710025

出　　处：《机床与液压》2013年第17期180-182,共3页Machine Tool & Hydraulics

摘　　要：将D-S数据融合技术引入液压缸泄漏故障诊断领域,通过异类传感器获取液压缸泄漏故障下的多模信息,将多源信息进行融合,有效解决了单传感器判别精度不高的问题。利用AMESim软件分别对液压缸的内泄漏和外泄漏故障状态以及正常工作状态进行仿真,提取其压力、流量、行程信号,并利用数据融合技术进行故障诊断判别。Data fusion technology was introduced into the hydraulic cylinder leakage fault diagnosis field. Through heterogeneous sensors for hydraulic cylinder leakage faults muhimode, multisource information was fused, solving the problem that single-sensor dis- crimination accuracy was not high. Internal leakage fault, outer leakage fault and normal state of the hydraulic cylinder were simulated using AMESim software, the pressure, flow, stroke signal were extracted and data fusion technique was used to do fault diagnosis dis- crimination.

关 键 词：液压缸 D-S数据融合 AMESIM仿真 故障诊断 泄漏 

分 类 号：TH137.51[机械工程—机械制造及自动化]