Analysis on the junction point’s stress located at considering fluid-solid coupling effects for support arm under different wall thickness

Volume 1, Issue 1, October 2016     |     PP. 1-11      |     PDF (503 K)    |     Pub. Date: October 20, 2016
DOI:    434 Downloads     7699 Views  

Author(s)

Zhi-jin Zhou, School of Mechanical & Electrical Engineering; Hunan University of Science and Technology; Xiangtan 411201, China
Zhi Yang, School of Mechanical & Electrical Engineering; Hunan University of Science and Technology; Xiangtan 411201, China
Zhaohui WANG, Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment; Hunan University of Science and Technology; Xiangtan 411201, China
Xiong Chen, School of Mechanical & Electrical Engineering; Hunan University of Science and Technology; Xiangtan 411201, China
Wang Zhao, National Key Lab of Deepsea Mineral Resources Development and Utilization,Changsha Research Institute of Mining and Metallurgy, Changsha 410012, China

Abstract
Fluid-structure interaction has a significant effect on stresses in the hinge point because of the impact of ocean currents to the pipeline. Aimed to support arms for deep-sea mining, numerical analysis method and the finite element software ADINA were adopted to analyze the pipeline structure - external fluid mutual coupling effect on stress at the hinge point. The results were shown that: (1) In the case of different wall thickness, the stress changes of the entire pipeline is relatively small, stress located mainly these places close to the junction in the pipelines, the maximum stress exists at the upper connection; (2) With wall thickness of the support pipe increasing, the maximum stress decreases, and when wall thicknesses changed from 9.5mm to 28.7mm interval 2.4mm ,the maximum stress value decreased 19.3%, 15.9%, 13.5%, 11.7%, 10.3%, 9.2%, 8.3%, 7.6% ;(3) With wall thickness increasing, the minimum stress value also reduced, and a minimum stress values decreased 19.9%, 14.0%, 5%, 14.6%, 28.7%, 15.9%, 8.6%, 2.7%,respectively .

Keywords
Support arm; Fluid–structure interaction; Different wall thickness; Stress

Cite this paper
Zhi-jin Zhou, Zhi Yang, Zhaohui WANG, Xiong Chen, Wang Zhao, Analysis on the junction point’s stress located at considering fluid-solid coupling effects for support arm under different wall thickness , SCIREA Journal of Mechanical Engineering. Volume 1, Issue 1, October 2016 | PP. 1-11.

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