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http://dx.doi.org/10.5916/jkosme.2013.37.8.886

Study of the high pressure hose assemblies by accelerated life test  

Lee, Gi Chun (KIMM Mechanical Systems safety Research Division)
Lee, Yong Bum (Mechanical Systems safety Research Division, Korea Institute Of Machinery & Materials)
Abstract
Hydraulic hose assemblies are used as piping components for construction machinery, automobile, aircraft, industrial machinery, machine tools, and machinery for ships. Then the reliability of hose assemblies is important because total hydraulic system, which used to deliver the fluid power ($P^*Q$) needed to flexibility in the piping system, is not operated if the hose assembly failed in the system. The data of the accelerated life test estimated through the shape parameter(${\beta}$) resulting of the Weibull distribution analysis. This study has tried to reduce the test time resulting from varying impulse pressure range and the flexing diameter. Accelerated life test model for the test results was adopted the GLL(generalized log linear) and the accelerated indexes are identified as 6.64 for the pressure and 4.46 for flexing radius. Also, it found that shape parameter is 6.19, scale parameter(${\eta}$) is $1.035{\times}108$, which were adopted the pressure 35 MPa and the flexing diameter R100 mm in the used condition.
Keywords
Hydraulic hose assembly; Impulse test; Generalized log linear model; Accelerated life test; Weibull distribution;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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