飞机前起落架转弯寿命试验台的设计  

Design of a Turning Life Test-bed for Aircraft Nose Landing Gear

作　　者：赵超泽 许波 吕少力 姚静[4] 魏鹏 闫莉佳 ZHAO Chao-ze;XU Bo;LV Shao-li;YAO Jing;WEI Peng;YAN Li-Jia(Tianjin Institute of Aerospace Mechanical and Electrical Equipment, Tianjin 300458;Corporation Key Laboratory of Aerospace Intelligent Equipments Technology, Tianjin 300458;AVIC Landing-gear Advanced Manufacturing Corporation, Changsha, Hunan 410200;School of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei 066004)

机构地区：[1]天津航天机电设备研究所,天津300458 [2]天津市宇航智能装备技术企业重点实验室,天津300458 [3]中航飞机起落架有限责任公司,湖南长沙410200 [4]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《液压与气动》2022年第7期182-188,共7页Chinese Hydraulics & Pneumatics

摘　　要：介绍了飞机前起落架转弯寿命试验台的基本功能,对试验台的机械加载原理进行了阐述;针对起落架液压主系统存在高低温工况,在主系统中设计出一种高低温液压隔离回路,能有效避免高低温液压元器件的使用,加热(冷却)功率变小,起到节能作用,成本降低,可靠性提高;针对加载工况,设计出液压加载回路,可以满足3种轴向力和转弯力矩的需求,并对转弯角速度进行了仿真验证,满足试验要求。This paper introduces the basic functions of the landing gear turning life test-bed,and expounds the mechanical loading principle of the test-bed.Aiming at the high and low temperature working conditions in the landing gear hydraulic main system,the high and low temperature hydraulic isolation circuit is designed in the main system,which can effectively avoid the use of the high and low temperature hydraulic components,reduce heating(cooling)power,play an energy-saving role,reduce cost,improve reliability.Aiming at the loading condition,the hydraulic loading loop is designed,which can meet the requirements of three kinds of axial forces and turning Angle velocity is verified by simulation,which meets the test requirements.

关 键 词：飞机前起落架转弯寿命试验台 高低温液压隔离回路 轴向力 转弯力矩 

分 类 号：TH137[机械工程—机械制造及自动化]