CAJ | 학술논문

克服了马尔可夫假设条件的限制,假定系统寿命、修复性维修和预防性维修的修复时间均遵从一般概率分布.利用离散时间模型在数值计算方面的优势,建立了离散时间下系统正常工作、修复性维修和预防性维修三个状态之间的转移关系,在此基础上建立了一股概率分布下考虑预防性维修的ADC模型的可信赖度D.数值算例说明了该评估方法有助于选择合适的预防性修复周期来提高系统的效能.
극복료마이가부가설조건적한제,가정계통수명、수복성유수화예방성유수적수복시간균준종일반개솔분포.이용리산시간모형재수치계산방면적우세,건립료리산시간하계통정상공작、수복성유수화예방성유수삼개상태지간적전이관계,재차기출상건립료일고개솔분포하고필예방성유수적ADC모형적가신뢰도D.수치산례설명료해평고방법유조우선택합괄적예방성수복주기래제고계통적효능.
For overcoming the limitation of the Markov assumptions, the lifetime, corrective maintenance time and preventive maintenance time are all assumed to be with general distribution. Using the numerical advantage of discrete-time model, the transition of the system states is established, including the operational state, corrective maintenance state and preventive maintenance state. Considering preventive maintenance, the dependability D of the ADC model with general distribution is built. Numerical examples illustrate that this evaluation method is useful for choosing appropriate preventive repair cycle to improve system performance.