| 弹性液舱内液体晃荡实验研究 |
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| 引用本文： | 蒋梅荣,任冰,温鸿杰,王永学.弹性液舱内液体晃荡实验研究[J].海洋工程,2013,31(5):1-10. |
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| 作者姓名： | 蒋梅荣 任冰 温鸿杰 王永学 |
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| 作者单位： | 大连理工大学 海岸与近海工程国家重点实验室，大连 116023;大连理工大学 海岸与近海工程国家重点实验室，大连 116023;大连理工大学 海岸与近海工程国家重点实验室，大连 116023;大连理工大学 海岸与近海工程国家重点实验室，大连 116023 |
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| 基金项目： | 国家自然科学基金资助项目（51179030） |
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| 摘 要： | 通过物理模型实验,对水平简谐激励下弹性矩形液舱内液体晃荡问题进行了研究。实验中给出了不同液深和不同激励振幅下弹性液舱内液体最低阶固有频率。采用影像采集与分析系统获得液舱内自由液面的形状和高度,通过压力采集系统得到舱壁上的压力分布。实验中分析了不同液深、不同激励频率下弹性和刚性液舱内自由液面高度和晃荡压力的变化特性。比较了弹性和刚性液舱内不同位置处自由液面高度随外界激励频率的变化规律,以及舱壁上不同位置处的压力峰值随外界激励频率的变化规律。结果表明:非共振情况下,弹性和刚性实验结果及理论值三者的波高和压力较为接近。共振情况下,弹性和刚性波高基本相等,在近舱壁处二者明显大于理论值,而在远离舱壁处二者与理论值存在一定差别;弹性压力较刚性压力略小,但二者与理论值差别较大。
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| 关 键 词： | 液体晃荡 弹性液舱 波高 晃荡压力 |
Experimental study on sloshing in elastic tanks |
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| JIANG Mei-rong,REN Bing,WEN Hong-jie and WANG Yong-xue.Experimental study on sloshing in elastic tanks[J].Ocean Engineering,2013,31(5):1-10. |
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| Authors: | JIANG Mei-rong REN Bing WEN Hong-jie and WANG Yong-xue |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China |
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| Abstract: | Experimental investigation of liquid sloshing in the rectangular elastic tank under horizontal harmonic excitation by physical model test is presented. The lowest order natural frequency of the liquid in elastic tanks under different liquid depths and the excitation amplitude are given. A set of image acquisition and data analysis system is applied to collect the wave shape and elevation, and the distribution of the pressure is obtained by the pressure acquisition system. Different liquid depths and excitation frequencies are considered, then the characteristics of the free surface elevation and the pressure in elastic and rigid tanks are discussed. The variation with the excitation frequency of the elevation and the pressure in elastic and rigid tanks are analyzed at different positions. The analysis shows that: in the non resonant cases, the elastic and rigid experimental results and the theoretical values are found close to each other, while in the resonant condition, the elastic and rigid elevations are basically equal to each other, and both of them are greater than the theoretical values near the bulkhead, but there is some difference between the two and the theoretical values when they are far away from the bulkhead; the elastic pressure is slightly smaller than the rigid one, and there is a great difference between the two and the theoretical values. |
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| Keywords: | liquid sloshing elastic tank wave elevation sloshing pressure |
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