摘要
采用可靠性摸底试验和可靠性增长试验相结合的方法,对机轮碳刹车系统这一复杂机电系统进行了可靠性试验。直接针对寿命周期内的薄弱环节制定可靠性摸底试验和可靠性增长试验;在不改变系统失效机理的前提下,尽量提高可靠性试验的频率,节约试验时间;选择容易引起薄弱环节损伤的环境应力和工作应力以加速方式进行可靠性试验;将可靠性试验与系统中部件的寿命试验相结合。该方法特别适用于复杂系统的可靠性试验。
A new method is proposed to the reliability testing of airplane wheel carbon brake system. The characteristic of the method is as follows ： the reliability pre-exposure and growth testing are designed to aim at the weakness of the system in its life period; frequencies adopted in the reliability testing are set as high as possible to save time and cost under the same failure mechanism; only the operating stress and environmental stress which have detrimental effects on the system dramatically are designed in the reliability testing; the reliability testing is combined with the life testing of parts in the airplane wheel carbon brake system.
出处
《科学技术与工程》
2010年第7期1705-1709,1730,共6页
Science Technology and Engineering
关键词
可靠性试验
加速寿命
机轮碳刹车系统
reliability testing
accelerated life
wheel carbon brake system
