Orifice characteristic parameters identification of internal pressure transfer equation for structure with opening

yu shi-ce;li qing-xiang;xü hai-wei;lou wen-juan

Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (5) : 50-54.

PDF(1340 KB)
PDF(1340 KB)
Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (5) : 50-54.
论文

Orifice characteristic parameters identification of internal pressure transfer equation for structure with opening

  • yu shi-ce1, li qing-xiang2 , xü hai-wei1, lou wen-juan1
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Abstract

Orifice characteristic parameters identification method of internal pressure transfer equation for structure with opening is studied theoretically and experimentally. Based on the general internal pressure transfer equation considering the nonlinear damping characteristic with two parameters, the orifice characteristic parameters identification method of internal pressure transfer equation for structure with opening excited by sinusoidal wave is investigated. Using time-history method the accuracy of parameters extraction is analyzed in detail, and a special experimental device is developed for orifice characteristic parameters extraction. The results show that extraction accuracy of the extraction method based on the sinusoidal excitation in the vicinity of the resonance peak is reliable, and the reaction of resonance is to ensure the accuracy of the extraction of the orifice characteristic parameters.

Key words

structure with opening / internal pressure transfer equation / orifice characteristic parameters / special experimental device / sinusoidal wave

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yu shi-ce;li qing-xiang;xü hai-wei;lou wen-juan. Orifice characteristic parameters identification of internal pressure transfer equation for structure with opening[J]. Journal of Vibration and Shock, 2012, 31(5): 50-54
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