有限条法分析板在移动车载作用下的动响应

Dynamic Response of Plates Due to Moving Vehicles Using Finite Strip Method

1.
Faculty of Traffic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P R China;
2.
Department of Civil Engineering, The University of Hong Kong, Pokfulam Road

摘要: 提出了一个模拟移动车辆和矩形板相互作用的板-车条.用板-车条模拟直接与车辆相接触的板条部分;用传统的板有限条模拟未直接受车辆作用的板条部分.分析中,每辆车理想化为一个具有上、下部质量块,由弹簧和阻尼器连接的单足动力系统.计算示例表明,用该方法分析得到的结果与已有结果很吻合.
- 板 /
- 移动车辆 /
- 动响应 /
- 有限条法
Abstract: Dynamic response of beam-like structures to moving vehicles has been extensively studied.However,the study on dynamic response of plates to moving vehicles has so far received but scant attention.A plate-vehicle strip for simulating the interaction between a rectangular plate and moving vehicles was described.For the portion of strips that are in direct contact with the moving vehicles,the plate-vehicle strips were empolyed.Conventional plate finite strips were used to model the portion of strips that are not directly under the action of moving vehicles.In the analysis,each moving vehicle is idealized as a one-foot dynamic system with the unsprung mass and sprund mass interconnected by a spring and a dashpot.The numerical results obtained from the proposed method agree well with available results.
- plate /
- moving vehicle /
- dynamic response /
- finite strip mthod

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