复杂系统故障安全风险评价方法

Failure safety risk evaluation approach for complex systems

复杂系统的安全风险涉及面广、影响因素多,因此需要系统的、可操作的方法来指导安全风险的评价过程。在系统的各类安全风险中,故障安全风险是由各种故障导致系统发生事故的风险,是最常见的系统安全问题,因此针对复杂系统的故障安全风险评价开展研究。复杂系统故障安全风险评价需要明确的评价参数和评价方法的支持,为此提出了复杂系统故障安全风险评价的流程、分层次的评价参数体系及评价方法,并通过示例来具体说明故障安全风险的评价过程,为解决复杂系统的故障安全风险评价问题提出了可行的思路。

As various issues and impacting factors involved in the safety risk of complex systems,systematic and operational approach was desirable to instruct the evaluation process of safety risk for complex systems. Among the safety risks of a system,failure safety risk,the risk of accidents caused by various failures,is the most common system safety problem,so the evaluation of failure safety risk for complex systems was studied. The evaluation requires the support of explicit parameters and proper approach. Therefore,the paper presented the evaluation process of failure safety risk for complex systems,hierarchical evaluation parameters and approach,and examples were applied to demonstrate the evaluation process in detail. Results show that the proposed evaluation approach provides a feasible solution to evaluate the failure safety risk of complex system.