某型电子调节器延寿研究方法  

Research Methodology for Life Extension of a Certain Type of Electronic Regulator

作　　者：李健 司马逸之 李昌范 吴云章 LI Jian;SIMA Yizhi;LI Changfan;WU Yunzhang(Army Aviation Research Institute,Beijing 101121,China;Army Aviation School,Beijing 101123,China)

机构地区：[1]陆军航空兵研究所,北京101121 [2]陆军航空兵学院,北京101123

出　　处：《装备环境工程》2025年第2期46-51,共6页Equipment Environmental Engineering

摘　　要：目的 针对某型电子调节器疲劳寿命与日历寿命不匹配缺陷,开展日历寿命研究,重新调整基准寿命,以满足产品在下一个翻修周期的使用需求,缓解当前装备备件紧缺的问题。方法 针对电子调节器在使用过程中受综合环境影响和“停-飞-停”的工作特点,以6件临近或达到日历寿命的产品为试验对象,开展综合考虑温度、湿度、振动等环境条件的加速试验,并对试验结果进行验证。结果 通过对电子调节器进行768 h(32 d)地面状态模拟加速试验和7.2h振动试验后,故障率为0。在80%的置信度下,产品的平均故障间隔(MTBF)时间能达到3725 h/27.35 a。结论 通过加速试验验证,电子调节器可延长1 500 h/8 a使用寿命,以满足使用需求。In view of the mismatch between the fatigue life and the calendar life of a certain type of electronic regulators,the work aims to study thecalendar life and readjust the baseline life,so as to meet the demand for the use of the product in the next refurbishment cycle and alleviate the current shortage of spare parts for the equipment.Aiming at the comprehensive environ-mental influence and"stop-fly-stop"working characteristics of the electronic regulator in use,six products approaching or reaching the calendar life were selected as the test objectsto carry out accelerated tests that took into account the temperature,humidity,vibration and other environmental conditions,and verify the test results.By performinga 768h(32d)ground state simulation acceleration test and a7.2h vibration test on the electronic regulator,the failure rate was 0,and the product's Mean Time Between Failure(MTBF)time could reach 3725h/27.35 a at 80%confidence level.Accelerated tests verify that the elec-tronic regulator can extend its service life by 1500h/8a to meet the demands of use.

关 键 词：直升机 电子调节器 日历延寿 环境监测 综合环境谱 环境加速试验 

分 类 号：V241[航空宇航科学与技术—飞行器设计]