一种产品退化试验的仿真与优化方法

发布时间：2018-03-24 08:15

本文选题：退化试验　切入点：模拟退化数据　出处：《中国机械工程》2017年07期

【摘要】：提出了一种基于性能退化模拟数据的退化试验参数优化方法,该方法适用于已知失效机理并可建立退化数据预测模型的情况。首先采用Bootstrap法建立了可靠寿命置信区间预测模型;然后以可靠寿命置信区间最小为目标,以试验预算费用为约束建立了试验参数的优化模型;接着以某型号武器身管为例,分析了生成模拟退化数据的一般方法,并对身管的退化试验参数进行了优化设计;最后探讨了仿真与优化效果的验证分析方法,通过对相应算例的分析证明了该方法的有效性。
[Abstract]:A degradation test parameter optimization method based on performance degradation simulation data is proposed. This method is suitable for the cases where the failure mechanism is known and the prediction model of degradation data can be established. Firstly, the reliable life confidence interval prediction model is established by using Bootstrap method. Then taking the minimum confidence interval of reliable life as the goal and the cost of test budget as the constraint, the optimization model of test parameters is established, and the general method of generating simulated degradation data is analyzed with the example of the barrel of a certain type of weapon. Finally, the simulation and optimization methods are discussed, and the effectiveness of the method is proved by the analysis of corresponding examples.
【作者单位】：南京理工大学机械工程学院;南京理工大学紫金学院;
【基金】：总装备部“十二五”国防预研项目(51319020202)
【分类号】：TB114.3

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