飞机结构件在当量环境谱下加速腐蚀试验和日历寿命估算方法  

ACCELERATED CORROSION TEST OF THE AIRCRAFT STRUCTURE-=UNDER EQUIVALENT ENVIRONMENT SPECTRUM AND THE COMPUTING-=METHOD FOR THE CALENDAR LIFE

作　　者：张栋[1] 

机构地区：[1]空军第一研究所,北京100076

出　　处：《航空学报》2000年第3期196-201,共6页Acta Aeronautica et Astronautica Sinica

摘　　要：首次成功地进行了构件在当量环境谱下的加速腐蚀试验 ,取得了防护层日历有效期和基体腐蚀扩展速率 ;建立了一套由试验数据估算日历首翻期、日历翻修间隔、日历总寿命的方法和公式 ;提出了由使用中真实的腐蚀损伤数据来估算日历首翻期的方法 ;在构件加速腐蚀试验和使用中真实腐蚀损伤数据统计处理的基础上 ,给出了 HX型机群日历寿命。It has been first successfully completed on the accelerated corrosion test of the aircraft structure under equivalent environment spectrum,and the calendar effective time of protection coating systems ( y o) and corrosion propagation rate( v ) of the body are obtained. A set of method and formula for the computation of calendar first D check, calendar time since overhaul and total calendar life is presented by using tests data. It is obtained that the calendar first D check y 1=y O +y c , calendar time since overhaul y N =y 1-(y O -y ′ O ), and the total calendar life Y T =Y O (1+R+…+R N)+(N+1)Y C +NY S .Using aircraft service corrosion damage date, the computed method of calendar first D check is found. Based on components accelerated corrosion test and statistical data of service corrosion damage, the calendar life for the aircraft of HX type is given out. -=

关 键 词：飞机结构 加速腐蚀试验 日历寿命 估算方法 

分 类 号：V215.52[航空宇航科学与技术—航空宇航推进理论与工程] V216.51