摘要
研究制动力作用下车辆-结构耦合系统的分析方法。以刚体动力学方法建立车辆子系统模型,以振型叠加法建立结构子系统模型,以给定的制动加速度时程、简化的Kalker蠕滑理论和轮轨密贴假定分别定义纵向、横向和竖向轮轨间相互作用力,采用时程积分和时间步内的力-运动状态迭代方式求解运动方程。作为算例,研究了深圳地铁4号线、6号线列车制动于深圳北站时车辆-结构动力耦合系统的动力响应,并对车站结构关键部位的振动状态做出了分析和评价。
The analysis method for a vehicle-structure coupled system under braking force was studied.The vehicle subsystems were modeled using the rigid-body dynamics method,the structure subsystems were modeled with the modal superposition method.The longitudinal,lateral and vertical wheel-rail interacting forces were defined with the given braking acceleration time-history,the simplified Kalker creep theory and the wheel-rail osculation assumption,respectively.The equations of motion of the system were solved using the time-history integral method and the force-motion state iterations within time steps.As a case study,the dynamic responses of the vehicle-structure coupled system for Shenzhen North Station under brakings of Metro Line 4 and Line 6 trains were computed,and the vibration properties of some key structural parts of the station building were analyzed and evaluated.
出处
《振动与冲击》
EI
CSCD
北大核心
2011年第2期138-143,共6页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(50538010)
北京市自然科学基金资助项目(8082021)
比利时-中国政府间合作项目(BIL07/07)
关键词
车辆-结构耦合系统
地铁列车
车站结构
制动力
vehicle-structure coupled system
metro train
station structure
braking force
