论文部分内容阅读
在车辆－轨道垂向系统统一模型的基础上，提出铁道车辆－辙叉相互作用模型。对道岔结构作一定的简化处理，针对道岔垂向几何不平顺，运用轮轨系统耦合动力学理论，模拟计算得到车辆通过道岔辙叉时的轮轨冲击力以及车体、辙叉、岔枕和道床等的振动响应。模拟结果显示：辙叉叉心处的不平顺空间，是直接影响轮轨冲击力的部位，它可以引起较大的轮轨冲击力，并引起车辆与轨下基础结构振动。
Based on the uniform model of vehicle-track vertical system, a model of rail vehicle-frog interaction is proposed. In order to simplify the structure of turnout, aiming at the irregular verticality of turnout and the coupling dynamics theory of wheel-rail system, the impact of wheel and rail when the vehicle passes through the turnout as well as the bodywork, frog, Road bed vibration response. The simulation results show that the uneven space at the center of frog fork is the part that directly affects the wheel-rail impact force, which can cause large wheel-rail impact force and cause the vibration of the vehicle and the under-rail foundation structure.