| 加肋圆柱壳振动相似性试验研究 |
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| 引用本文： | 俞孟萨,吴永兴,吕世金.加肋圆柱壳振动相似性试验研究[J].船舶力学,2001,5(3):84-88. |
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| 作者姓名： | 俞孟萨 吴永兴 吕世金 |
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| 作者单位： | 中国船舶科学研究中心, |
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| 摘 要： | 本文试验研究了三个加肋圆柱壳模型的振动相似性。结果表明，模型的无量纲频率ωl/√E/ρ和归一化振动加速度l^3ρa/F相似。模型设计和试验时。缩比因子λ1、谱级倍频程数K和频率移动的带数N应满足关系2^N／K＝λ1。
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| 关 键 词： | 振动相似性 加肋圆柱壳 试验研究 模型 船舶 |
| 文章编号： | 1007-7294(2001)03-0084-05 |
| 修稿时间： | 2001年3月2日 |
An Experimental Investigation on Vibrational Similarity of Stiffened Cylindrical Shells |
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| YU Mensa,Wu Yongxin,LU Shijin.An Experimental Investigation on Vibrational Similarity of Stiffened Cylindrical Shells[J].Journal of Ship Mechanics,2001,5(3):84-88. |
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| Authors: | YU Mensa Wu Yongxin LU Shijin |
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| Abstract: | This paper investigates experimentally the vibrational similarity among three models of stiffened cylindrical shells. The results show that the dimensionless frequency ωl/ and the normalized vibration acceleration l3 ρa/F of models are similar. The measurement has also told us that scaling factor λ1, octave index K of spectrum level and number of octave band N of frequency shift should satisfy 2N/K = λ1. |
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