甘欣. 空投问题两种动力学方法的等价性研究[J]. 力学与实践, 2014, 36(5): 622-625,638. DOI: 10.6052/1000-0879-13-507
引用本文: 甘欣. 空投问题两种动力学方法的等价性研究[J]. 力学与实践, 2014, 36(5): 622-625,638. DOI: 10.6052/1000-0879-13-507
GAN Xin. EQUIVALENCE OF TWO METHODS FOR AIRDROP DYNAMICS[J]. MECHANICS IN ENGINEERING, 2014, 36(5): 622-625,638. DOI: 10.6052/1000-0879-13-507
Citation: GAN Xin. EQUIVALENCE OF TWO METHODS FOR AIRDROP DYNAMICS[J]. MECHANICS IN ENGINEERING, 2014, 36(5): 622-625,638. DOI: 10.6052/1000-0879-13-507

空投问题两种动力学方法的等价性研究

EQUIVALENCE OF TWO METHODS FOR AIRDROP DYNAMICS

  • 摘要: 定义了空投系统的两个元素,即“载机”和“装载物”。介绍了用来研究空投问题的两种动力学建模方法,即“整体法”和“多体法”。证明了两种方法对于平动动力学是等价的,但对于转动动力学是不等价的,原因是整体法并非总是存在的。

     

    Abstract: The paper defines two elements of an airdrop system. They are the aircraft for carrying and load.Two modeling methods for airdrop dynamics are introduced. They are the single-body model and the multi-body model. The two methods are shown to be equivalent in the translation motion, but not in rotation,because the single-body model does not always exist.

     

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