Motivated by the fact that a leaking pipe can lose or gain energy from the leaking flow, this study attempts to explore the nonconservative leaking flow effect on the dynamic stability of a simply supported pipe with a constant velocity leakage. It employs a two-dimensional nonlinear longitudinal and lateral coupling model, and the leakage effect is accounted for by virtual work due to virtual momentum transport at the leaking point. The equations of motion are solved by Galerkin-based multimode approach and the Houbolt's finite difference time integration. It demonstrates that when there is a leaking flow, a stable pipe can be refined or destabilized via a static pitchfork bifurcation, and a buckling pipe can be stabilized or deteriorated into a worse divergence condition. The critical leaking flow velocities and the excited buckling modes depend on the leaking fluid mass and the leak's position. This study may provide some insights to assist the leak detection system (LDS) of a pipe transporting high-pressure oil or gas in modern engineering.
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August 2017
Research-Article
A Simulation Study on the Dynamic Stability of a Fluid-Conveying Pipe With a Constant Velocity Leakage
Shuai Meng,
Shuai Meng
State Key Laboratory of Ocean Engineering,
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
Search for other works by this author on:
Ye Li,
Ye Li
State Key Laboratory of Ocean Engineering,
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: ye.li@sjtu.edu.cn
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: ye.li@sjtu.edu.cn
Search for other works by this author on:
Xuefeng Wang
Xuefeng Wang
State Key Laboratory of Ocean Engineering,
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
Search for other works by this author on:
Shuai Meng
State Key Laboratory of Ocean Engineering,
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
Ye Li
State Key Laboratory of Ocean Engineering,
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: ye.li@sjtu.edu.cn
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: ye.li@sjtu.edu.cn
Xuefeng Wang
State Key Laboratory of Ocean Engineering,
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
Collaborative Innovation Center for
Advanced Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
1Corresponding author.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received November 22, 2016; final manuscript received April 14, 2017; published online May 26, 2017. Assoc. Editor: Tomomichi Nakamura.
J. Pressure Vessel Technol. Aug 2017, 139(4): 041303 (11 pages)
Published Online: May 26, 2017
Article history
Received:
November 22, 2016
Revised:
April 14, 2017
Citation
Meng, S., Li, Y., and Wang, X. (May 26, 2017). "A Simulation Study on the Dynamic Stability of a Fluid-Conveying Pipe With a Constant Velocity Leakage." ASME. J. Pressure Vessel Technol. August 2017; 139(4): 041303. https://doi.org/10.1115/1.4036657
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