变体航行器动力学建模与仿真  

Dynamic modeling and simulation of morphing vehicle

作　　者：颜奇民 胡俊华[1] 陈国明 刘安 张强[1] YAN Qimin;HU Junhua;CHEN Guoming;LIU An;ZHANG Qiang(Aeronautics Knginecring College,Air Force Engineering University,Xi’an 710038,China)

机构地区：[1]空军工程大学航空工程学院,西安710038

出　　处：《北京航空航天大学学报》2021年第12期2602-2610,共9页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(51779263)。

摘　　要：针对部分变体航行器变体描述复杂、存在刚体与柔性体耦合导致动力学模型复杂的问题,推导了一种具有普遍适用性的变体航行器动力学方程。将航行器视为由质点组成的整体,建立每个质点的运动微分方程。采用积分思想得到了适用于变体航行器的动力学扩展方程,其中,航行器变体产生的影响可以用附加力与附加力矩描述。对一种具有柔性翼的共形半环翼变体航行器进行了纵向面内开环运动仿真。针对部分附加力与附加力矩难以准确计算的问题,提出了一种便于工程化快速计算的方法,分析了不同变体速率下航行器的动力学响应和附加力、附加力矩的影响。结果表明,附加力和附加力矩与变体速率正相关。In view of the problem that the dynamic model of some morphing vehicles is complex,which is caused by the complicated variant description and the rigid-flexible coupling,a general applicable dynamic equation of morphing vehicle is derived.The vehicle is regarded as a whole composed of mass points,and the dynamic differential equation of each mass point is established.The extended dynamic equation suitable for the morphing vehicle is derived by integral method,and the influence of the variants is described as additional forces and additional moments.The longitudinal open-loop motion simulation of a conformal semi-ring wing morphing vehicle with flexible wings is carried out.Aimed at the problem that some additional forces and additional moments are difficult to accurately calculate,a rapid calculation method for engineering is proposed.The dynamic response of the vehicle and the influence of additional forces and additional moments under different variant rates are analyzed.The results show that the additional forces and additional moments are positively correlated with the variant rate.

关 键 词：变体航行器 半环翼 动力学建模 纵向运动 动态响应 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程] TJ760.1[兵器科学与技术—武器系统与运用工程]