The fault diagnosis of aeroengine requires not only diagnosis knowledge from the manufacturer , but also the continuously cumulated expert practical experience , thus its information is incomplete 摘要飞机发动机故障诊断需要厂家提供的诊断知识和不断积累的专家实践经验,具有不完备性。
A diagnosis information system is formed by combining aeroengine diagnosis knowledge and expert practical experience , accordant diagnosis rules are acquired by reduction operation , and the realization of digital maintenance technology for aircraft is ensured 该方法将厂家提供的飞机发动机故障诊断知识和专家实践经验形成统一的诊断信息表,利用粗糙集的知识约简方法处理,获得一致的诊断规则,为飞机数字化维修技术的实现提供了保障。