Analysis of stress-strain responses of a liquid-filled pipe based on two-way fluid-structure interaction

LIU Song,WU Xianmei,PENG Xiuqian,CHEN Jiayi,WANG Cong

Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (20) : 73-79.

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PDF(1898 KB)
Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (20) : 73-79.

Analysis of stress-strain responses of a liquid-filled pipe based on two-way fluid-structure interaction

  • LIU Song1,2,WU Xianmei1,2,PENG Xiuqian3,CHEN Jiayi1,2,WANG Cong1,2
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Abstract

In this paper, the large eddy simulation (LES) was used to simulate two-way fluid-structure interaction of a liquid-filled pipe, and the flow pulsation and the stress-strain responses of pipe were analyzed.The study shows that the signal of turbulent flow in vicinity of the inner wall has a strong positive correlation with the circumferential stress-strain signal of the inner and outer walls of the pipe, while there is obvious negative correlation with the radial stress-strain signal of the inner and outer walls of the pipe.The signal of turbulent flow in vicinity of the inner wall can be indirectly measured by detecting the circumferential stress-strain signal of the outer walls of the pipe, which suggests a good method for effectively measuring the pulsation signal of the turbulent in the tube.

Key words

large eddy simulation / two-way fluid-structure interaction / stress-strain responses

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LIU Song,WU Xianmei,PENG Xiuqian,CHEN Jiayi,WANG Cong. Analysis of stress-strain responses of a liquid-filled pipe based on two-way fluid-structure interaction[J]. Journal of Vibration and Shock, 2021, 40(20): 73-79

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