| 双应力加速模型的建立及参数估计 |
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| 引用本文： | 王少萍,李沛琼,王占林.双应力加速模型的建立及参数估计[J].航空学报,1994,15(2):236-241. |
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| 作者姓名： | 王少萍 李沛琼 王占林 |
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| 作者单位： | 北京航空航天大学303教研室,北京,100083 |
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| 摘 要： | 建立了威布尔分布下的双应力加速模型并给出了相应的参数估计方法。利用这种模型进行机械产品的加速寿命试验,具有试验时间短、适用于任意变动载荷等特点,是高可靠性产品寿命评估和可靠性分析的一种新方法。
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| 关 键 词： | 寿命试验 周期载荷 加速寿命试验 可靠性分析 |
| 收稿时间： | 1992-03-13 |
| 修稿时间： | 1992-11-21 |
DOUBLE-STRESS ACCELERATED MODELING AND PARAMETER ESTIMATION |
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| Wang Shaoping,Li Peiqiong,Wang Zhanlin.DOUBLE-STRESS ACCELERATED MODELING AND PARAMETER ESTIMATION[J].Acta Aeronautica et Astronautica Sinica,1994,15(2):236-241. |
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| Authors: | Wang Shaoping Li Peiqiong Wang Zhanlin |
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| Institution: | Faculty 303 of Beijing University of Aeronautics and Astronautics, Beijing,100083 |
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| Abstract: | This paper suggests a new method of aceelerated life testing, which uses a double-stress power law model for Weibull distribution,and gives the corresponding method of parameter estimation. The double-stress accelerated model is suitable for any stress accelerated except temperature in life testing of mechanical components.Compared with the model of con-stant single stress accelerated,the model not only can reduce testing time but suits for any stress spectra.By using this model,the service life and reliability for high reliable components can be es-timnted.From the test data of hydraulic pump, the results are satisfactory. |
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| Keywords: | cyclic loads accelerated life test reliability analysis |
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