CAJ | 학술논문

研究系统受到δ冲击时，考虑系统自然退化和冲击两个竞争性失效过程间具有相关性时，系统可靠性的建模问题。相关性一方面表现为冲击造成系统退化量的增加，另一方面表现为系统的自然退化程度对冲击结果的影响。假设系统因冲击而失效的过程是δ冲击过程，通过系统自然退化过程和冲击过程的分布函数，导出了系统的可靠度函数，建立了系统可靠度模型的一般形式，并给出一种特例的具体形式，最后利用文献中的具体参数进行仿真，以验证模型的正确性和有效性。
연구계통수도δ충격시，고필계통자연퇴화화충격량개경쟁성실효과정간구유상관성시，계통가고성적건모문제。상관성일방면표현위충격조성계통퇴화량적증가，령일방면표현위계통적자연퇴화정도대충격결과적영향。가설계통인충격이실효적과정시δ충격과정，통과계통자연퇴화과정화충격과정적분포함수，도출료계통적가고도함수，건립료계통가고도모형적일반형식，병급출일충특례적구체형식，최후이용문헌중적구체삼수진행방진，이험증모형적정학성화유효성。
The system reliability modeling was studied considering the correlation between two s-dependent competing failure processes including degradation and shock when a system was subjected to δ-shock.On the one hand, shock process caused the additional abrupt degradation of the system;on the other hand,the degradation of the system affected the results of the shock process.Assuming that the system was subjected to δ-shock process,based on the distribution functions of the system natural degradation process and the shock process,the system's reliability function was derived.The general form of the system's reliability model was established and one of its specific forms was given. Finally,the simulation was preformed using parameters listed in a literature.The simulation results showed the correctness and validity of the model.