| 弹性地基上方形构件的风致振动分析 |
| |
| 引用本文： | 刘济科. 弹性地基上方形构件的风致振动分析[J]. 中山大学学报(自然科学版), 1999, 38(3): 17-20 |
| |
| 作者姓名： | 刘济科 |
| |
| 作者单位： | 中山大学应用力学与工程系 |
| |
| 基金项目： | 香港中山大学高等学术研究中心基金会（99M6）资助项目 |
| |
| 摘 要： | 研究了弹性地基上方形构件在横向空气动力作用下的振动现象．分别采用七次及三次多项式对实测的空气动力进行拟合．利用平均化方法分析了物体的极限环运动规律,以及典型的分叉、跳跃、滞后等非线性现象
|
| 关 键 词： | 风致振动 分叉 极限环 |
Wind Excited Oscillation of a Square Object on Elastic Foundation |
| |
| LIU Ji ke. Wind Excited Oscillation of a Square Object on Elastic Foundation[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 1999, 38(3): 17-20 |
| |
| Authors: | LIU Ji ke |
| |
| Abstract: | An investigation is made of the wind excited oscillation of a square object on elastic foundation Based upon the experimentally measured results in the wind tunnel tests, the aerodynamic forces are fit by the seventh order polynomial and the third order polynomial respectively With the aid of the averaging method, the typical non linear phenomena such as limit cycle, bifurcation, jump and hysteresis are obtained |
| |
| Keywords: | wind excited oscillation bifurcation limit cycle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
