The Reliability Evaluation of Electromagnetic Valve of EMUs Based on Two-Parameter Exponential Distribution
نویسندگان
چکیده
In order to solve reliability evaluation of life of electromagnetic valve of EMUs, this paper evaluates the life of electromagnetic valve under small sample size based on zero-failure data. Firstly, this paper selects the prior distribution of the failure probability, and then the posteriori distribution is obtained by using the Bayes method so that the Bayes estimation can be received under the square loss. Finally, according to the pi received, the reliability parameters of twoparameter exponential distribution are estimated based on weighted least square method. In addition, this paper applies the reliability theory to the reliability life evaluation of electromagnetic valve of EMUs which shows this method can solve the reliability assessment problem which provides certain theoretical basis for the reliability of electromagnetic valve.
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