系统仿真学报 ›› 2018, Vol. 30 ›› Issue (5): 1818-1825.doi: 10.16182/j.issn1004731x.joss.201805025

• 仿真应用工程 • 上一篇    下一篇

典型液压系统故障诊断与隔离方法研究

张丽霞1, 冯辅周1, 刘相波1, 王敏2   

  1. 1.陆军装甲兵学院车辆工程系,北京 100072;
    2. 中国北方车辆研究所,北京 100072
  • 收稿日期:2016-05-13 修回日期:2016-10-02 出版日期:2018-05-08 发布日期:2019-01-03
  • 作者简介:张丽霞(1974-),女,山东荣成,博士,副教授,研究方向为机械测试与健康管理。
  • 基金资助:
    国家自然科学基金(51205407),军队科研项目(2015ZB20)

Research on Fault Detection and isolation method for Typical Hydraulic System

Zhang Lixia1, Feng Fuzhou1, Liu Xiangbo1, Wang Min2   

  1. 1. Department of Vehicle Engineering, Academy of Army Armored Force Engineering, Beijing 100072, China;
    2. China North Vehicle Research Institute, Beijing 100072, China
  • Received:2016-05-13 Revised:2016-10-02 Online:2018-05-08 Published:2019-01-03

摘要: 针对综合传动装置液压系统非线性、不连续和多耦合等工作特性导致的故障检测难、故障隔离不准确等问题,以某型综合传动装置变矩器补偿支路的结构和工作原理为基础,研究了变矩器补偿支路的键合图和诊断建模方法,建立了全局解析冗余关系(Global Analytical Redundancy Relations, GARRs)和故障特征矩阵(Fault Signature Matrix,FSM)的对应关系,准确实现了故障的检测和隔离。通过仿真实验验证了不同故障下的解析冗余关系的变化规律,说明了采用GARRs方法进行混合系统的故障诊断与隔离(FDI)设计和应用的可行性。该方法为新型装备关键系统的传感器优化配置与现役装备的测试性增长提供了新技术。

关键词: 解析冗余关系, 故障特征矩阵, 故障诊断与隔离, 变矩器补偿支路

Abstract: The integrated transmission device possesses some inherent characteristics of the multiple working modes, discontinuity, multi-coupling, which lead to problems such as the fault detection difficulty and fault isolation inaccuracy. Analyzed in detail the structure and working principle of torque converter compensation circuit, the bond graph modeling and diagnosis methods were studied. Then the relationship between global analytical redundancy and fault characteristic matrix is established, which accurately accomplishes the fault detection and isolation. Finally, the rules between the analytical redundancy relations and different faults are verified by simulation experiments, which indicate that the design and application of FDI based on GARRs method is feasible for the hybrid system. This method provides a new technology for the sensors optimization configuration and the testability growth for the new equipment.

Key words: analytical redundancy relations, fault signature matrix, fault detection and isolation, torque converter compensation circuit

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