作　　者： (曾祥财）; (敖文伟）; (龚良国）; (刘丽红）;

机构地区： 航空工业洪都,江西南昌330024

出　　处： 《教练机》 2017年第2期18-22,共5页

摘　　要： 针对某型教练机地面应急放故障,结合起落架应急放工作原理及故障现象,对故障进行了分析,确定了起落架应急放不到位的原因是由于液压油锁转换不到位而造成,并由此开展了液压油锁改进工作。通过地面模拟试验及机上试验,验证了改进后的液压油锁满足应急放使用要求。 A certain type of aircraft failed to extend landing-gear in emergency on ground. Analysies were carried outfor above failure by combining the operating principle of landing -gear emergency extension system and failurephenomena, and it is confirmed that the failure cause is improper change-over of hydraulic oil lock. Corrective actionswere taken for improving hydraulic oil lock. Simulation tests on ground and onboard tests show that the improvedhydraulic oil lock meets the operating requirements of landing-gear emergency extension.

关 键 词： 起落架 应急放 液压油锁