试飞试用阶段的飞机可靠性评估研究  

Study on Aircraft Reliability Assessment in Flight Test and Service Period

作　　者：郭鹏 赵晓东 GUO Peng;ZHAO Xiaodong(General Configuration and Aerodynamic Department,AVIC The First Aircraft Institute,Xi’an 710089,China;Department of Airworthiness and General Quality Characteristics,AVIC The First Aircraft Institute,Xi’an 710089,China)

机构地区：[1]航空工业第一飞机设计研究院总体气动研究所,西安710089 [2]航空工业第一飞机设计研究院适航与通用质量特性研究所,西安710089

出　　处：《航空工程进展》2020年第4期556-562,共7页Advances in Aeronautical Science and Engineering

摘　　要：飞机的可靠性水平是飞机设计定型时考核的重要指标之一,为保证评估结果的客观与准确性,在飞机试飞试用阶段开展可靠性评估研究尤为重要。本文从工程实际需求出发,通过规范评估对象故障信息的采集方式,明确故障判定准则与统计原则,给出完整的飞机可靠性评估流程;基于上述流程,针对某型飞机一年中的试飞试用信息,进行多维度的可靠性评估。结果表明:评估结果能够较好地反映飞机的可靠性水平,满足工程需要。The reliability level is one of the most significant indexes to be considered in aircraft design process.In order to guarantee the objectivity and accuracy of results,the study on aircraft reliability assessment in flight test and service period is particularly essential.Proceeding from the practical engineering requirement,the whole reliability assessment process for aircraft is obtained through regulating the acquisition method of fault information as well as specifying the failure criterion and statistical principles.Based on the above process,utilizing the fault information in flight test and service,the reliability level of assigned aircraft is assessed in multiple dimensions.The results show that the eventual assessment results can reflect the real reliability level of aircrafts and satisfy the requirement of practical engineering.

关 键 词：试飞 可靠性 故障信息 判定准则 统计方法 评估流程 

分 类 号：V215.7[航空宇航科学与技术—航空宇航推进理论与工程]