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tmc1k24 发表于 2010-8-2 16:03

网站他们讨论的就是这篇文章的框架

tmc1k24 发表于 2010-8-2 16:03

vibration node or a centre of percussion

tmc1k24 发表于 2010-8-2 16:04

vibration node or a centre of percussion

tmc1k24 发表于 2010-8-2 16:06

vibration node or a centre of percussion

tmc1k24 发表于 2010-8-2 16:17

vibration node or a centre of percussion

tmc1k24 发表于 2010-8-2 16:17

The sweet spot of a baseball bat, like that of a tennis racket, can be defined either in terms of a
vibration node or a centre of percussion. In order to determine how each of the sweet spots
influences the ‘‘feel’’ of the bat, measurements were made of the impact forces transmitted to the
hands. Measurements of the bat velocity, and results for a freely suspended bat, were also obtained
in order to assist in the interpretation of the force waveforms. The results show that both sweet spots
contribute to the formation of a sweet spot zone where the impact forces on the hands are
minimised. The free bat results are also of interest since they provided particularly elegant examples
of wave excitation and propagation, suitable for a student demonstration or experiment

tangqiang1 发表于 2010-8-2 16:41

我就是一个爱数学建模的人！

2008411317 发表于 2010-8-2 16:45

祝福数学中国

seraphim0129 发表于 2010-8-2 16:59

顶~~~~新人来报

drmyfore 发表于 2010-8-2 17:01

新手来报道，希望能通过数学中国提高自己的数学知识与建模水平，希望数学中国越办越好

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