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Journal of Zhejiang University SCIENCE A 1998 Vol.-1 No.-1 P.

http://doi.org/10.1631/jzus.A2200442


Research on the sampling performance of a New Bionic Gravity Sampler


Author(s):  Yongqiang GE, Jiamin HE, Jin GUO, Peihao ZhANG, Hao WANG, Ziqiang REN, Xiaoling LE, Ying WANG, Yuhong WANG, Jiawang CHEN

Affiliation(s):  Ocean college, Zhejiang University, Zhoushan 316021, China; more

Corresponding email(s):   arwang@zju.edu.cn

Key Words:  Deep-sea gravity sampling, Bionic sampler tube, Non-smooth surface, Sampling performance, Drag reduction


Yongqiang GE, Jiamin HE, Jin GUO, Peihao ZhANG, Hao WANG, Ziqiang REN, Xiaoling LE, Ying WANG, Yuhong WANG, Jiawang CHEN. Research on the sampling performance of a New Bionic Gravity Sampler[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .

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year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2200442"
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A1 - Xiaoling LE
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Abstract: 
Gravity sampling is of vital importance for sampling seabed sediments and understanding submarine sedimentary environments and resources. In this paper, a new bionic sampler tube with non-smooth surface for low-disturbance and rapid sampling is presented. The bionic sampler tube with depressions and swellings on its surface was designed on the model of the non-smooth surface of the dung beetle. Sufficient theoretical calculations, numerical simulations and experimental tests were carried out to study its sampling performance. The penetration depth, sample length and friction resistance of the sampler tube were calculated. The finite element model and the coupled Eulerian-Lagrangian (CEL) method were used to analyze and compare its sampling performance. Laboratory and field gravity sampling tests were conducted and the results demonstrated the advantages of the bionic sampler tube in improving sampling performance and in reducing adhesion and drag.

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