Research of Double Nozzle Flapper Valve Accelerated Degradation Test

Xiao Hong Wang; Qiu Xi Li; Ya Li Feng

doi:10.4028/www.scientific.net/AMM.532.18

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Preliminary Study on Piezoelectric Actuation Solution Proportioner
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Research of Double Nozzle Flapper Valve Accelerated Degradation Test
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 532Research of Double Nozzle Flapper Valve...

Research of Double Nozzle Flapper Valve Accelerated Degradation Test

Abstract:

This paper selected the double nozzle flapper type electro-hydraulic servo valve as the research object. Through to analys the wear failure mechanism of electro-hydraulic servo valve to determine the test stress and to select the Pressure gain and leakage as the Degradation performance indicators. So it makes the detail Accelerated degradation test project . and it designs a test system for the pollution wear test. Then, by modeling the degradation process as a drift Brown Motion of which the first passage time follow inverse Gaussian distribution, this paper generated the reliability model of the electro-hydraulic servo valve. Finally, the maximum likelihood combined with least square of accelerated degradation testing data is used to estimate the degradation data of leakage from the test.

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Periodical:

Applied Mechanics and Materials (Volume 532)

Pages:

18-21

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.532.18

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Cite this paper

Online since:

February 2014

Authors:

Xiao Hong Wang, Qiu Xi Li*, Ya Li Feng

Keywords:

Double Nozzle Flapper Valve, Parameters Estimation, Reliability Analysis, SSADT

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* - Corresponding Author

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