Paper
5 March 2018 Testability analysis on a hydraulic system in a certain equipment based on simulation model
Rui Zhang, Hua Cong, Yuanhong Liu, Fuzhou Feng
Author Affiliations +
Proceedings Volume 10710, Young Scientists Forum 2017; 107101T (2018) https://doi.org/10.1117/12.2317557
Event: Young Scientists Forum 2017, 2017, Shanghai, China
Abstract
Aiming at the problem that the complicated structure and the shortage of fault statistics information in hydraulic systems, a multi value testability analysis method based on simulation model is proposed. Based on the simulation model of AMESim, this method injects the simulated faults and records variation of test parameters ,such as pressure, flow rate, at each test point compared with those under normal conditions .Thus a multi-value fault-test dependency matrix is established. Then the fault detection rate (FDR) and fault isolation rate (FIR) are calculated based on the dependency matrix. Finally the system of testability and fault diagnosis capability are analyzed and evaluated, which can only reach a lower 54%(FDR) and 23%(FIR). In order to improve testability performance of the system,. number and position of the test points are optimized on the system. Results show the proposed test placement scheme can be used to solve the problems that difficulty, inefficiency and high cost in the system maintenance.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rui Zhang, Hua Cong, Yuanhong Liu, and Fuzhou Feng "Testability analysis on a hydraulic system in a certain equipment based on simulation model", Proc. SPIE 10710, Young Scientists Forum 2017, 107101T (5 March 2018); https://doi.org/10.1117/12.2317557
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Analytical research

Failure analysis

Statistical analysis

Systems modeling

Back to Top