【摘要】 研究带限位器浮筏隔振系统力学模型及在基础冲击激励下的响应,应用多刚体系统动力学理论,首先给出了带有限位器的浮筏隔振系统在局部坐标系下刚度矩阵表达式,然后在总体坐标系下建立了浮筏隔振系统的运动方程,采用纽马克直接积分法计算带限位器的浮筏隔振系统在基础冲击激励下的运动响应,并结合工算例进行讨论,得到了有意义的结论。更多还原

【Abstract】 The paper deals mainly with the kinetic model of a raft isolation system with restrictors and its responses to foundational shock.Using Multi-body dynamics,the stiffness matrix of the raft isolation system with restrictors is first obtained in local coordinate system,and then motion equations of the raft isolation system are established in global coordinate system.Newmark method is used to calculate the responses of the raft isolation system,and then an engineering example is presented and detailed discussed.A significative conclusion is acquired.更多还原