直升机腿式起落架机构动力学研究  

Research on dynamics of helicopter leg landing gear mechanism

作　　者：刘昊林 刘小川[1] 任佳[1] 王计真 LIU Haolin;LIU Xiaochuan;REN Jia;WANG Jizhen(National Key Laboratory of Strength and Structural Integrity,Aircraft Strength Research Institute of China,Xi’an 710065,China)

机构地区：[1]中国飞机强度研究所强度与结构完整性全国重点实验室,西安710065

出　　处：《航空工程进展》2024年第3期157-166,共10页Advances in Aeronautical Science and Engineering

基　　金：航空科学基金(20184213011)。

摘　　要：多用途、智能化和强地形适应性是未来直升机发展的重要趋势。起落架是保障直升机起降安全的关键部件,传统起落架的地形适应能力较差,针对直升机在复杂地形环境下如何实现平稳着陆的难题,利用仿生学设计理念设计一种腿式起落架系统。首先从腿式起落架设计需求出发,对起落架构型进行分析并完成腿部结构设计;然后基于设计的腿部机构,完成其运动学分析和动力学分析,建立相应模型,以此作为腿式起落架运动控制的基础;最后在实验室完成腿式起落架的运动测试,证明了结构设计的合理性和着陆的稳定性。Multipurpose,intelligent,and strong terrain adaptability are important trends in the development of heli⁃copters in the future.The landing gear is a key component to ensure the safety of helicopter takeoff and landing.Due to the poor terrain adapt-ability of the traditional landing gear,a leg landing gear system is designed using the bionics design concept to solve the problem of the helicopter's smooth land observation in complex terrain environ⁃ment.Starting from the design requirements of leg landing gear,the landing architecture is analyzed and the leg structure design is completed.Then,based on the designed leg mechanism,the kinematics analysis and dynamics analysis are completed,and the relevant models are established as the basis for the motion control of the leg landing gear.Finally,motion testing of the leg landing gear is completed in the laboratory,proving the rationality of the structural design and the stability in the lading.

关 键 词：腿式起落架 构型设计 运动学分析 动力学分析 

分 类 号：V226[航空宇航科学与技术—飞行器设计] TP23[自动化与计算机技术—检测技术与自动化装置]