【摘要】 提出了一种高速列车动模型试验装置的新型加速方法,以期获得均匀的动模型车加速度,避免其他加速方法存在的问题;介绍了该加速方法独特的组成结构和试验原理,并进行了相应的动力学分析、数值模拟和试验验证.分析表明:该新型加速方法结构简单、可控性强、动模型车试验段出口速度高、能有效保护车载测试设备,获得了预期的加速效果,可适用于高速列车动模型试验装置模拟列车进出隧道、列车交会、列车与周围环境之间相对运动等一系列的空气动力学试验.更多还原

【Abstract】 A new accelerating method of moving model experimental system of high-speed train is proposed to bring smooth acceleration of moving model vehicle and avoid problems occurred in other accelerating methods.The structure and theory of the new accelerating method is introducted and the relevant dynamics analysis,numerical simulation and experimental demonstration are accomplished.It is found that the new accelerating method has a simple structure,strong controllability,high exit speed and effective protection of testing equipments in the vehicle for a series of aerodynamics experiments on moving model experimental system simulating high-speed trains in tunnels,trains passing each other and trackside structure.This method achieves expected accelerating function.更多还原