CLC number:
On-line Access: 2023-08-18
Received: 2022-09-14
Revision Accepted: 2023-01-23
Crosschecked: 2023-08-18
Cited: 0
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Citations: Bibtex RefMan EndNote GB/T7714
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,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2200442 @article{title="Research on the sampling performance of a new bionic gravity sampler", %0 Journal Article TY - JOUR
新型仿生重力采样器采样性能的研究机构:1浙江大学,海洋学院,中国舟山,316021;2浙江大学,海南研究院,中国三亚,572025;3海洋感知技术与装备教育部工程研究中心,中国舟山,316021 目的:重力取样方法对实现海底沉积物取样和了解海底沉积环境和资源至关重要。本文提出一种能够实现低干扰快速取样的非光滑表面的仿生取样管,其表面具有凹凸结构,并对其取样性能(贯入深度、取样长度、贯入阻力和取样率)展开详细讨论和研究。 创新点:1.基于理想理想弹塑性材料的孔扩张模型和史密斯波动方程推导取样器贯入过程的力学特征;2.建立数值模拟框架,模拟重力取样过程,并研究取样管参数对重力取样效果的影响;3.设计仿生非光滑重力取样管,通过数值模拟研究非光滑形态参数的减粘降阻特性;4.建立试验模型,开展室内及潮滩取样器贯入及取样试验。 方法:1.通过实验分析,对比常规重力取样管和仿生取样管的取样效果(图8和9);2.通过理论推导,建立重力取样管和周围沉积物的力学关系(公式(3)~(7));3.通过仿真模拟,运用耦合的欧拉-拉格朗日方法在重力取样器取样过程中,对比不同参数的取样器的取样性能,验证所提仿生非光滑重力取样器的低扰动和快速取样性(图4~6)。 结论:1.重力取样器的取样效果与取样管的刀口倾角、壁厚以及长径比相关,通过数值模拟得到了不同参数对取样效果的影响;2.非光滑表面对仿生取样管的采样性能有明显促进作用,通过数值模拟验证了凹坑比凸包的促进效果更好;3.运用参数分析方法,对非光滑表面形态特征进行单一变量分析,得到了较优的参数组合。 关键词组: Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article
Reference[1]ChangXH, ZhangL, YangY, et al., 2015. Analysis on sampling disturbance of deep sediment in the Yellow River reservoir. Yellow River, 37(6):18-21 (in Chinese). ![]() [2]ChenJW, FanW, BinghamB, et al., 2013. A long gravity-piston corer developed for seafloor gas hydrate coring utilizing an in situ pressure-retained method. Energies, 6(7):3353-3372. ![]() [3]ChenXD, ZhangXH, LuXB, et al., 2016. Numerical study on the deformation of soil stratum and vertical wells with gas hydrate dissociation. Acta Mechanica Sinica, 32(5):905-914. ![]() [4]ChengT, YuZY, ZhengJJ, et al., 2018. Improvement of the cavity expansion theory for the measurement of strain softening in over consolidated saturated clay. Measurement, 119:156-166. ![]() [5]ChirendeB, LiJQ, WenLG, et al., 2010. Effects of bionic non-smooth surface on reducing soil resistance to disc ploughing. Science China Technological Sciences, 53(11):2960-2965. ![]() [6]GMGS (Guangzhou Marine Geological Survey Bureau of the Ministry of Geology and Mineral Resources), 1993. Geological Investigation in the Pacific. Geology Press, Beijing, China, p.7-14 (in Chinese). ![]() [7]CurryW, BrodaJ, KeigwinL, et al., 2008. A new long coring system for R/V Knorr. Eos, Transactions American Geophysical Union, 89(15):142-143. ![]() [8]DengSQ, 2004. The Mechanism of Reducing Soil Adhesion and the Design of Bionic Plow. PhD Thesis, Jilin University, Changchun, China(in Chinese). ![]() [9]FrancisTJG, LeeYDE, 2000. Determination of in situ sediment shear strength from advanced piston corer pullout forces. Marine Georesources & Geotechnology, 18(4):295-314. ![]() [10]GeYQ, ChenJW, ZhangPH, et al., 2022. A novel technique for seabed strata deformation in situ monitoring. Frontiers in Marine Science, 9:987319. ![]() [11]MagagnoliM, 2017. A new coring method in deep water. Marine Georesources & Geotechnology, 35(4):496-503. ![]() [12]QinHW, CaiZ, HuHM, et al., 2016. Numerical analysis of gravity coring using coupled Eulerian-Lagrangian method and a new corer. Marine Georesources & Geotechnology, 34(5):403-408. ![]() [13]RenLQ, HanZW, LiJJ, et al., 2002. Effects of non-smooth characteristics on bionic bulldozer blades in resistance reduction against soil. Journal of Terramechanics, 39(4):221-230. ![]() [14]RenLQ, DengSQ, WangJC, et al., 2004. Design principles of the non-smooth surface of bionic plow moldboard. Journal of Bionic Engineering, 1(1):9-19. ![]() [15]RenZQ, ChenJW, HeJM, et al., 2020. Research and analysis of 30-m gravity piston corer for natural gas hydrate. Marine Technology Society Journal, 54(2):57-68. ![]() [16]RoudbenehZH, VakilianKA, 2020. Experimental investigation of bionic soil-engaging blades for soil adhesion reduction by simulating Armadillidium vulgare body surface. INMATEH Agricultural Engineering, 60(1):99-106. ![]() [17]RuanHL, ChenYL, CaiJP, et al., 2017. Optimization and application of a sampling drilling tool for ultra-deepwater drilling in South China Sea. China Offshore Oil and Gas, 29(1):105-109 (in Chinese). ![]() [18]SmithI, 2021. Smith’s Elements of Soil Mechanics, 10th Edition. Wiley-Blackwell, Edinburgh, UK, p.373-459. ![]() [19]SoniP, SalokheVM, NakashimaH, 2007. Modification of a mouldboard plough surface using arrays of polyethylene protuberances. Journal of Terramechanics, 44(6):411-422. ![]() [20]StaubachP, MachačekJ, SkowronekJ, et al., 2021. Vibratory pile driving in water-saturated sand: back-analysis of model tests using a hydro-mechanically coupled CEL method. Soils and Foundations, 61(1):144-159. ![]() [21]WangB, LuanZD, ZhangX, et al., 2018. A novel monitorable and controlable long-coring system with maximum operating depth 6 000 m. Marina Sciences, 42(7):25-31 (in Chinese). ![]() [22]WangM, 2016. Key Technology Research of Submarine Self-Propelled Tracked Trencher. PhD Thesis, Shanghai Jiao Tong University, Shanghai, China (in Chinese). ![]() [23]YeY, WangRJ, TuXX, et al., 2005. Paleoclimatic and paleoenvironmental records in the core sediments from the eastern Pacific Ocean. Acta Oceanologica Sinica, 27(3):170-175. ![]() [24]ZhangXH, LuXB, ShiYH, et al., 2015. Study on the mechanical properties of hydrate-bearing silty clay. Marine and Petroleum Geology, 67:72-80. ![]() Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou
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