航空工程进展2011，Vol.2Issue(4)：432-436,484,6.
飞机柔性前起落架摆振仿真分析
Shimmy Simulation Analysis of Aircraft Flexible Nose Landing Gear
常正 1聂宏 2冯飞 2张明 2冯彪2
作者信息
- 1. 中国商用飞机有限责任公司上海飞机设计研究院,上海200232
- 2. 南京航空航天大学航空宇航学院,南京210016
- 折叠
摘要
Abstract
Shimmy is a key subject of aircraft taxing dynamics. Based on multi-body dynamics theory, a flexible model of shimmy is developed by the means of FEM Method and point-curve coincidence, and verified with the data of static test. Figures of stable region are presented accordingly, formed by taxiing speed and critical anti- shimmy damping coefficient, to explore the effects of tire lateral stiffness and running clearance. The result shows that the method is effective to deal with flexible shock observer by means of point-curve coincidence. Critical damping coefficient decreases with taxing speed increasing when using the second anti-shimmy damping in the situation of the speed is higher than 10 m/s, and increases with tire lateral stiffness increasing, running clearance leads to sharp increase in critical damping coefficient.关键词
起落架/摆振/柔性模型/转动间隙/动力学Key words
landing gear/shimmy/flexible model/running clearance/dynamics引用本文复制引用
常正,聂宏,冯飞,张明,冯彪..飞机柔性前起落架摆振仿真分析[J].航空工程进展,2011,2(4):432-436,484,6.
