金帅,张振兴,李家瑞,杨光.航空发动机喘振故障外场诊断与分析[J].航空发动机,2021,47(S1):53-56
航空发动机喘振故障外场诊断与分析
Field Diagnosis and Analysis of Aeroengine Surge Fault
  
DOI:
中文关键词:  喘振  故障树  外场  故障诊断  航空发动机
英文关键词:surge  fault tree  field  fault diagnosis  aeroengine
基金项目:航空动力基础研究项目资助
作者单位E-mail
金帅,张振兴,李家瑞,杨光 中国航发沈阳发动机研究所沈阳110015 tjukinge@163.com 
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中文摘要:
      为了完善航空发动喘振故障研究和加速发动机技术快速成熟,通过分析喘振原因及其影响因素,建立故障树,将喘振影 响因素分为调节机构、进气扰动、主机性能及主机结构4个模块。以故障树及4个模块为依据,并综合考虑零部件发生故障概率和 维护工作难易程度,提出一种喘振故障外场诊断方法,制定排故流程以及与4个模块相对应的排故子流程,将排故流程模块化。 诊断方法已应用于外场用户的使用维护中,通过该方法,可将喘振故障快速定位于4个模块中的1个,进而根据该模块及其排故子 流程进行故障排查及处理。结果表明:该方法有效可行,能够大幅提高喘振故障的排查效率,并大量节约了航空发动机在外场中 的使用维护成本。
英文摘要:
      In order to improve the research of aeroengine surge fault and accelerate the rapid maturity of engine technology,a fault tree was established by analyzing the causes of surge and its influencing factors. The influencing factors of surge were divided into four mod? ules,which consisted of adjustment mechanism module,air turbulence module,engine performance module,engine structure module. Based on the fault tree and four modules and considering the failure probability of parts and the difficulty of maintenance,a field diagnosis method of surge fault was proposed. The troubleshooting program and the troubleshooting subprogram corresponding to the four modules were formulated to modularize the troubleshooting program. The diagnosis method had been applied to the use and maintenance of field us? ers. Through this method,the surge fault could be quickly located in one of the four modules and then the fault could be checked and han? dled according to the module and its troubleshooting subprogram. The results show that the method is effective and feasible,which can greatly improve the efficiency of surge troubleshooting and greatly save the cost of aeroengine maintenance in the field.
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