液压系统故障注入与故障诊断仿真研究

Study On The Fault Injection and Fault Diagnosis Simulation of Hydraulic System

摘要:

通过机-电-液联合仿真等技术手段,构建了基于AMESim和MATLAB软件构建故障诊断数字仿真验证系统,实现机电液系统的故障模拟、注入与诊断仿真功能。并以某典型液压举升回路系统为对象,完成故障模式及诊断方法的研究,建立仿真模型、完成故障注入和诊断过程的演示验证。结果表明,该仿真系统可应用于类似系统、不同工况、不同故障模式的故障注入与故障诊断仿真,极大程度上提高了液压系统的可靠性的设计。

Abstract:

With the development of mechanical-electro-hydraulic joint simulation technical, the fault diagnosis digital simulation system was constructed based on AMESim and MATLAB software, which realizes the function of fault simulation, injection and diagnosis simulation of electro-hydraulic system. Taking a typical hydraulic lifting circuit system as an object of study, the fault mode and diagnosis method were studied, the simulation model was established, and the demonstration and verification of fault injection and diagnosis process were completed. The results showed that the simulation system could be applied to fault injection and fault diagnosis simulation of similar systems, different working conditions and different fault modes, which greatly improves the reliability of hydraulic system design.