摘要
提出了一种将甲板着舰点运动数据引入到起落装置动力学模型中的数学模型建立方法:根据直升机位置和姿态的变化解算出各轮空间位置和水平矢量,根据载舰运动情况和各轮空间位置解算出甲板预着舰点的高程和水平矢量,用机轮与甲板着舰点相对高度的负值近似当作轮架支柱总压缩量进而解算出各轮支反力,用机轮与甲板着舰点相对速度的负值近似当作机轮变形速率进而解算出各轮摩擦力。以某型飞行模拟器为样例机,建立了该仿真模型的实例。实际应用效果验证了所述理论及方法的有效性和实用性。
A simulation mathematics model was advanced which introduced the motion data of the deck at wheels/ground contact point into the dynamics model of the landing gear as follows: the space position and the level vector were obtained by computing the space position and pose of helicopter. The altitude and the level vector of the deck at wheels/ground contact point were obtained by computing the ship movement and the space position of helicopter's wheels. The ground reaction force was solved by that regard negative of relative altitude between the tire and the deck at wheels/ground contact point as the compression of the wheel carrier support approximately. The friction was solved by that regard negative of relative velocity between the tire and the deck at wheels/ground contact point as the deformation rates of the wheel. An example of the model was set up for a type of helicopter simulator. The validity of the presented theory and method was validated by the application effect.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2015年第8期1697-1702 1707,1707,共7页
Journal of System Simulation
关键词
直升机
着舰
起落装置
甲板着舰点
压缩量
helicopter
deck-landing
landing gear
deck at wheels/ground contact point
compression
