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    Volume 48, Issue 2 (March 2020)

    Theory and Application of the Internal Leakage Detection of Open-Circuit Hydraulic Systems Based on Active Hydraulic Test Technology

    (Received 8 August 2017; accepted 11 April 2018)

    Published Online: 2020

    CODEN: JTEVAB

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    Abstract

    With the rapid development of hydraulic technology, hydraulic systems have become more complex, and the detection of internal leakage is becoming more and more difficult. A fast and accurate approach is required to detect the internal leakage of a hydraulic system. This article describes the theory and application of the internal leakage detection of open-circuit hydraulic systems based on Active Hydraulic Test Technology. The theory of Active Hydraulic Test Technology is introduced, a leakage model and an online detection model of an open-circuit hydraulic system are established, and the total leakage of the hydraulic system is theoretically analyzed. A theoretical analysis of the leakage test method for the main control oil circuit and branch components is also conducted. Through applied research on a hydraulic system of a 1,250-ton forging machine, the effectiveness of the method for detecting the internal leakage fault of a complex hydraulic system is verified.

    Author Information:

    Chenggang, Yang
    Department of Electrical and Mechanical Control Engineering, College of Mechanical Engineering, Yanshan University, Qinhuangdao City, Hebei

    Jingyi, Zhao
    Department of Electrical and Mechanical Control Engineering, College of Mechanical Engineering, Yanshan University, Qinhuangdao City, Hebei

    Hao, Sun
    Department of Electrical and Mechanical Control Engineering, College of Mechanical Engineering, Yanshan University, Qinhuangdao City, Hebei

    Lixuan, Yang
    University College London, London,

    Ruixin, Zhang
    Department of Electrical and Mechanical Control Engineering, College of Mechanical Engineering, Yanshan University, Qinhuangdao City, Hebei


    Stock #: JTE20170459

    ISSN:0090-3973

    DOI: 10.1520/JTE20170459

    Author
    Title Theory and Application of the Internal Leakage Detection of Open-Circuit Hydraulic Systems Based on Active Hydraulic Test Technology
    Symposium ,
    Committee F32