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| ANALYSIS ON IMPACT RESPONSES OF UNRESTRAINED PLANAR FRAME STRUCTURE(Ⅱ)—NUMERICAL EXAMPLE ANALYSIS | |
| 引用本文： | 陈镕 郑海涛 薛松涛 唐和生 HE Fu-bao.ANALYSIS ON IMPACT RESPONSES OF UNRESTRAINED PLANAR FRAME STRUCTURE(Ⅱ)—NUMERICAL EXAMPLE ANALYSIS[J].应用数学和力学(英文版),2005,26(11):1458-1463. |
| 作者姓名： | 陈镕 郑海涛 薛松涛 唐和生 HE Fu-bao |
| 作者单位： | [1]Research Institution of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, P. R. China [2]Center for Aerospace Technology, Tongji University, Shanghai 200092, P. R. China [3]Department of Architecture, School of Science and Engineering, Kinki University, Osaka 577-8502, Japan [4]不详, School of Science and Engineering, Kinki University, Osaka 577-8502, Japan |
| 基金项目： | Project supported by the National Science Fund for Distinguished Young Scholars （No. 59925820） |
| 摘 要： | By using the formula derived in Part （ Ⅰ ）, the instant response of an unrestrained planar frame structure subjected to the impact of a moving rigid-body are evaluated and analysed. The impact force-time history between the structure and the moving rigid-body, shear force and bending moment distribution along the beams, axial force distribution along the bars were calculated. The wave propagation phenomena of the longitudinal wave in the bars, the flexural and shear waves in the beams were also analysed. The numerical results show that the time duration of impact force is controlled by the flexural wave and the longitudinal wave ; the shear effect in beams should not be neglected in the impact response analysis of structures. |
| 关 键 词： | 波传播 平面结构 碰撞反应 压力分布 |
| 文章编号： | 0253-4827（2005）11-1458-06 |
| 收稿时间： | 2003-05-19 |
| 修稿时间： | 2005-07-01 |
Analysis on impact responses of unrestrained planar frame structure(II)—Numerical example analysis |
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| Rong Chen,Hai-tao Zheng,Song-tao Xue,He-sheng Tang.Analysis on impact responses of unrestrained planar frame structure(II)—Numerical example analysis[J].Applied Mathematics and Mechanics(English Edition),2005,26(11):1458-1463. | |
| Authors: | Rong Chen Hai-tao Zheng Song-tao Xue He-sheng Tang |
| Institution: | 1. Research Institution of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092, P. R. China 2. Center for Aerospace Technology, Tongji University, Shanghai, 200092, P. R. China 3. Department of Architecture, School of Science and Engineering, Kinki University, Osaka, 577-8502, Japan |
| Abstract: | By using the formula derived in Part (I), the instant response of an unrestrained planar frame structure subjected to the impact of a moving rigid-body are evaluated and analysed. The impact force-time history between the structure and the moving rigid-body, shear force and bending moment distribution along the beams, axial force distribution along the bars were calculated. The wave propagation phenomena of the longitudinal wave in the bars, the flexural and shear waves in the beams were also analysed. The numerical results show that the time duration of impact force is controlled by the flexural wave and the longitudinal wave; the shear effect in beams should not be neglected in the impact response analysis of structures. |
| Keywords: | unrestrained planar frame structure impact impact force wave propagation |
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