CAJ | 학술논문

针对传统故障风险评估RPN分析方法存在的缺陷，提出一种基于变权模糊层次分析法的设备故障风险半定量评估方法；根据生产损失、维修费用、安全影响、环境影响4个因素，通过引入模糊综合评估和激励变权，来定量化的对故障严重程度进行评估；通过故障频率、严重程度以及可探测度3个因素，采用变权层次分析法进行故障风险评估，提高了风险评估与客观实际的相符性。以某起重机零部件故障风险评估为例，表明了该方法的有效性和可行性。
침대전통고장풍험평고RPN분석방법존재적결함，제출일충기우변권모호층차분석법적설비고장풍험반정량평고방법；근거생산손실、유수비용、안전영향、배경영향4개인소，통과인입모호종합평고화격려변권，래정양화적대고장엄중정도진행평고；통과고장빈솔、엄중정도이급가탐측도3개인소，채용변권층차분석법진행고장풍험평고，제고료풍험평고여객관실제적상부성。이모기중궤령부건고장풍험평고위례，표명료해방법적유효성화가행성。
Aiming at the disadvantage of failure risk assessment using risk priority number (RPN),the semi-quantitative method using fuzzy variable weight synthesis and analytic hierarchy process (AHP)was brought forward. The model of the risk assessment was divided into two layers. Firstly,according to the production loss,repair costs,safety and environment impact,fuzzy AHP and encour-agement variable weight synthesis were introduced into the quantitative assessment of failure severity to improve its accuracy and objec-tiveness. Then,via severity,occurrence,and detection,variable weight and AHP were adopted for failure mode risk assessment to make assessment results closer to the reality. At last,an instance was provided to illustrate the potential applications of the proposed model. The result shows the proposed approach is effective and feasible.