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对系统实施失效模式与影响分析是及时发现系统失效、保证系统可靠性的一项重要工作。为了提高失效分析的效率及系统创新性,提出了基于功能角色模型的系统失效分析与创新设计方法。首先构建系统的功能角色模型,利用功能角色模型推导失效的失效模式、失效影响、失效原因,再对失效进行评价,筛选失效问题。并利用发明问题解决理论解决失效问题。最后以一种车库门传感器系统为例,说明整个方法的应用过程。
It is an important work to find out the system failure and ensure the system reliability by implementing the failure mode and impact analysis on the system. In order to improve the efficiency of failure analysis and system innovation, a system failure analysis and innovative design method based on functional role model is proposed. Firstly, the functional role model of the system is constructed, and the failure mode, failure effect and failure cause of the failure are deduced by the functional role model, and then the failure is evaluated to screen the failure problem. And use the invention of problem solving theory to solve the problem of failure. Finally, a garage door sensor system, for example, illustrates the application of the method.