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首页> 外文期刊>Journal of Sound and Vibration >A METHOD OF ANALYZING FINITE PERIODIC STRUCTURES .2. COMPARISON WITH INFINITE PERIODIC STRUCTURE THEORY
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A METHOD OF ANALYZING FINITE PERIODIC STRUCTURES .2. COMPARISON WITH INFINITE PERIODIC STRUCTURE THEORY

机译：有限周期结构的分析方法.2。与无限周期结构理论的比较

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The relations between the proposed method for analyzing finite periodic structures and the theory of infinite periodic structures are discussed. It is shown that the proposed method is in fact a very useful approximate approach for calculating not only the natural frequencies and modes of finite periodic structures but also the pass-bands of infinite periodic structures as a function of the phase constant. The pass-bands of various periodic beam structures are calculated. The discussion focuses on the influence of stiffeners on the pass-bands of the structures, and provides some useful indications of the possibilities and limitations of tuning a pass-band of a periodically stiffened structure by means of tuning the properties of the stiffeners. The example calculations show that it is possible to use stiffeners to change the location and width of the lower order pass-bands. (C) 1997 Academic Press Limited. [References: 7]
机译：讨论了所提出的有限周期结构分析方法与无限周期结构理论之间的关系。结果表明，所提出的方法实际上是一种非常有用的近似方法，它不仅可以计算有限周期结构的固有频率和模态，而且可以计算无限周期结构的通带作为相位常数的函数。计算各种周期性波束结构的通带。讨论的重点是加劲肋对结构通带的影响，并提供一些有用的指示，说明通过调整加劲肋的特性来调整周期性加劲结构的通带的可能性和局限性。计算示例表明，可以使用加劲肋来更改低阶通带的位置和宽度。 （C）1997 Academic Press Limited。 [参考：7]

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