Dynamic response of rotating flexible cantilever pipe conveying fluid with tip mass

2007 ◽  
Vol 49 (7) ◽  
pp. 878-887 ◽  
Author(s):  
Han-Ik Yoon ◽  
In-Soo Son
2015 ◽  
Vol 1094 ◽  
pp. 491-494 ◽  
Author(s):  
Hong Bo Zhai ◽  
Jian Jun Su ◽  
Xiao Min Yan ◽  
Wei Liu

The dynamic response characteristic of the pipe conveying fluid was researched with the fluid pressure pulsation in this article. For some hydraulic power pipe system, formed the mathematic models and the transfer matrices of the main hydraulic elements based on the fluid network algorithm, deduced the calculation formulae of input-output pressure pulsation, gained the transitive relationship of the fluid flow pulsation and pressure pulsation, and then studied the pressure pulsation amplitude of the hydraulic power pipes with different working pressures. This study, which analyzed the dynamic response of the pipe conveying fluid and discussed the feasibility of increasing the working pressure, is valuable for the design and the application of the pipes conveying fluid.


2010 ◽  
Vol 24 (15n16) ◽  
pp. 2609-2614 ◽  
Author(s):  
IN SOO SON ◽  
HAN IK YOON ◽  
SANG PIL LEE ◽  
DONG JIN KIM

In this paper, the dynamic stability of a rotating cantilever pipe conveying fluid with a crack and tip mass is investigated by numerical method. That is, the effects of the rotating the rotating angular velocity, the mass ratio, the crack and tip mass on the critical flow velocity for flutter instability of system are studied. The equations of motion of rotating pipe are derived by using the extended Hamilton's principle. The crack section of pipe is represented by a local flexibility matrix connecting two undamaged pipe segments. The crack is assumed to be in the first mode of fracture and always opened during the vibrations. Finally, the stability maps of the cracked rotating pipe system as a rotating angular velocity and mass ratio β are presented.


2013 ◽  
Vol 254 ◽  
pp. 237-245 ◽  
Author(s):  
Jijun Gu ◽  
Chen An ◽  
Menglan Duan ◽  
Carlos Levi ◽  
Jian Su

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