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Volume 27 Issue 1
Jan.  2001
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Journal of Beijing University of Aeronautics and Astronautics  > 2001  >  27(1): 62-65.
LI Min, ZHU De-chao. Analytical and Experimental Research of Ball-Bar Impact under Low Velocity[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(1): 62-65. (in Chinese)
Citation: LI Min, ZHU De-chao. Analytical and Experimental Research of Ball-Bar Impact under Low Velocity[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(1): 62-65. (in Chinese)
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Analytical and Experimental Research of Ball-Bar Impact under Low Velocity

  • Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics

  • Received Date: 28 Sep 1999
  • Publish Date: 31 Jan 2001
    Abstract
  • The analytical and experimental investigations of low speed impact of a ball on a bar were reported. The impact tests, which were carried out by means of laser vibrometer, verified the Hertz contact theorem. It was also shown that, the analysis of low speed impact problem can really be reformulated as the analysis of conventional dynamic response problem. Hence, such kind of problems can be calculated by using MSC/NASTRAN program and its special data card. The agreement between the experimental and analytical results is very well. Furthermore, some technical problems related to the impact measurement by using laser vibratormeter were clarified through this relatively fundamental impact test, thus providing the further more complicated structural impact test with experience and technology.

     

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  • [1] Timoshenko S P,Goodier J N. Theory of elasticity[M]. New York:MacGraw-Hill, 1970. [2] Timoshenko S P. Vibration problem in engineering[M].3rd ed. New Jersey:Van Nostrand, 1955. [3] Graff K F. Wave motion in elastic solids[M]. Oxford :Clarendon, 1975. [4] Goldsmith W. Impact:the theory and physical behavior of colliding solids[M]. London:Edward Arnold, 1960. [5] Love A E H. A treatise on the mathematical theory of elasticity[M]. New York:Dover, 1944. [6] 诸德超,邢誉峰. 点弹性碰撞问题之解析解[J].力学学报,1996,28(1):99~103. [7] 诸德超,邢誉峰,李 敏. 结构弹性碰撞问题注 .见:王大钧主编. 工程力学进展 . 北京:北京大学出版社,1998．175~179. [8] Trowbridge D A, Grady J E, Aiello R A. Low velocity impact analysis with NASTRAN[J]. Computers & Structures, 1991, 40(4):977~984.
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