基于虚拟机的飞机起落架运动模型构建研究  

Virtual Machine Based Movement Model of Aircraft Landing Gear Construction

作　　者：李莹[1] 

机构地区：[1]天津工业大学管理学院,天津300387

出　　处：《计算机仿真》2012年第10期106-109,共4页Computer Simulation

摘　　要：研究飞机起落架运动模型的构建,保证模型构建精度。在飞机起降时,前轮摆振是一种严重威胁飞行安全的现象,因其摆振的不规律性,传统的动态模型构建方法不能正确对摆振进行稳定性分析,造成构造的模型精度不高的问题。为了解决上述难题,提出了虚拟机的模型构建方法。由于柔性虚拟机理论利用轮胎特性和动力学参数对前轮摆振特性准确分析,避免了刚性摆振研究的不准确,通过在ADAMS中分析得到数据特性构架起落架的准确虚拟机模型,根据起落架摆振试验和相关工况对模型进行校验,保证了构建模型的精度。仿真结果表明,模型构建方法能够有效解决摆振的影响,构建高精度的蘑菇型,使模型更逼近现实,为起落架研发提供可靠的数据参考。Research the landing gear construction of motion model plane to ensure the precision of the model.When a plane landed,wheel shimmy motion is a serious threat to the phenomenon of flight safety.Because of its shimmy is not regularity,the traditional building method of the dynamic model can not correctly analyse the shimmy stability,causing low precision of model.In order to solve the problem,the paper put forward a model based on virtual machine building method.Based on the theory of flexible virtual machine,tyre characteristics and dynamics parameters were used to accurately analyse the front wheel shimmy features.Then,through ADAMS,the data structure characteristics of the virtual machine model landing gear were obtained accurately.According to the landing gear shimmy test and related conditions,the model was calibrated to ensure the precision of the model.Simulation experiments show that the model can effectively solve the influence of shimmy,construct high precise mushroom type.

关 键 词：起落架 运动模型 刚性 柔性 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]