摘要
为了探究螺旋推进车辆在低速条件下的转向动力学特性,建立了螺旋推进车辆转向动力学模型,采用数值软件结合牛顿迭代法对动力学模型进行了仿真,研究了整车转向过程中纵向力及转向力矩的变化规律。结果表明:随着相对转向半径增大,车辆内侧制动力、外侧牵引力、整车转向阻力矩及转向主动力矩均会减小。研究结果为螺旋推进车辆的设计与应用提供了理论依据,对工程实践具有一定的指导意义。
In order to explore the steering dynamics characteristics of screw-driven vehicle in the condition of low-speed,the dynamics steering model of screw-driven vehicle is established.The dynamics model is simulated by Newton iteration method combining with numerical software to study the changing rule of the longitudinal forces and torque in the steering process.The results show that the lateral traction,medial braking force,steering moment of resistance and steering torque get smaller with the increase of the turn-ing radius.The research results can provide theoretical basis for the design and application of the screw-driven vehicle and it is significant for guiding the engineering practice.
出处
《装甲兵工程学院学报》
2015年第2期47-51,共5页
Journal of Academy of Armored Force Engineering
关键词
螺旋推进车辆
转向性能
运动学
动力学
仿真
screw-driven vehicle
steering performance
kinematics
dynamics
simulation
