机械科学与技术2018，Vol.37Issue(1)：148-151,4.DOI:10.13433/j.cnki.1003-8728.2018.0122
起落架摆振多体动力学建模及其在摆振飞行试验中的应用
Multi-body Dynamics Modeling of Landing Gear Shimmy and Application in Shimmy Flight Test based on Model
谢帅 1舒成辉 2贾天娇 1汪文君1
作者信息
- 1. 中国飞行试验研究院飞机所,西安710089
- 2. 中国飞行试验研究院规划发展部,西安710089
- 折叠
摘要
Abstract
Rigid body dynamics model of landing gear shimmy is first built in LMS Virtual.Lab Motion platform,and this model is preliminary checked through the drop test.Secondly,key parts of landing gear are processed again into flexible parts in finite element software PATRAN,so the multi-body dynamics model of landing gear shimmy is built.Then shimmy work condition simulation is conducted,the working modal is identified,and modal result is repeatedly compared with flight test result in time-frequency domain,the model is modified and updated continually,finally the model correlation work is finished.At last,test envelope is expanded by initial model,the stability of landing gears in the whole envelope is validated,and shimmy flight test state points are optimized.关键词
起落架/摆振/多体系统/动力学模型/飞行试验Key words
landing gear/shimmy/multi-body dynamic models/flight test/computer simulation分类
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谢帅,舒成辉,贾天娇,汪文君..起落架摆振多体动力学建模及其在摆振飞行试验中的应用[J].机械科学与技术,2018,37(1):148-151,4.
