본문 바로가기
KERD
논문KCI 등재

Experimental investigation of the wake-induced pendulum motion of tandem cylinders

1

조회

0

다운로드

1

인용

0

참고문헌

키워드

주제분류조선공학

초록

This paper presents an experimental investigation of the response characteristics of the pendulum motion of tandem cylinders undergoing Wake-Induced Vibrations (WIV), which was first devised by Lee et al. (2021). In this Pendulum System of Tandem Cylinders (PSTC), the downstream cylinder suspended from a pivot on the spanwise axis of the upstream cylinder oscillates in the circumferential direction in response to the incoming wake flow from the upstream cylinder. The governing parameters of the PSTC are the torsional spring stiffness, the cylinder spacing, and the moment of inertia of the system. The response characteristics for the WIV of the PSTC were measured experimentally by varying these main parameters. In addition, the relationship between two parameters, moment of inertia and torsional spring stiffness, was observed by changing individual values.

Abstract

This paper presents an experimental investigation of the response characteristics of the pendulum motion of tandem cylinders undergoing Wake-Induced Vibrations (WIV), which was first devised by Lee et al. (2021). In this Pendulum System of Tandem Cylinders (PSTC), the downstream cylinder suspended from a pivot on the spanwise axis of the upstream cylinder oscillates in the circumferential direction in response to the incoming wake flow from the upstream cylinder. The governing parameters of the PSTC are the torsional spring stiffness, the cylinder spacing, and the moment of inertia of the system. The response characteristics for the WIV of the PSTC were measured experimentally by varying these main parameters. In addition, the relationship between two parameters, moment of inertia and torsional spring stiffness, was observed by changing individual values.

참고문헌 (17)

  1. Assi, G. R. S., "On the wake-induced vibration of tandem circular cylinders: the vortex interaction excitation mechanism", J. Fluid Mech, 661, pp.265~401 (2010)
  2. Assi, G. R. S., "The role of wake stiffness on the wake-induced vibration of the downstream cylinder of a tandem pair", J. Fluid Mech, 718, pp.210~245 (2013)
  3. Assi, G. R. S., "Wake-induced vibration of tandem cylinders of different diameters", J. Fluid Struct, 50, pp.329~339 (2014)
  4. Bernitsas, M. M., "VIVACE (vortex induced vibration aquatic clean energy): a new concept in generation of clean and renewable energy from fluid flow", J. Offshore Mech. Arctic Eng, 130, pp.041101~ (2008)
  5. Jauvtis, N., "The effect of two degrees of freedom on vortex-induced vibration at low mass and damping", J. Fluid Mech, 509, pp.23~62 (2004)
  6. Khalak, A., "Dynamics of a hydroelastic cylinder with very low mass and damping", J. Fluid Struct, 10, pp.455~472 (1996)
  7. Khalak, A., "Investigation of relative effects of mass and damping in vortex-induced vibration of a circular cylinder", J. Wind Eng. Ind. Aerod, pp.341~350 (1997)
  8. Khalak, A., "Motions, forces and mode transitions in vortexinduced vibrations at low mass-damping", J. Fluid Struct, 13, pp.813~851 (1999)
  9. Kim, E. S., "Synergy of Multiple Cylinders in Flow Induced Motion for Hydrokinetic Energy Harnessing", Ph. D., pp.2013
  10. Kim, E. S., "Multicylinder flow-induced motions: enhancement by passive turbulence control at 28,000 < Re < 120,000", J. Offshore Mech. Arctic Eng, 135, pp.021802~ (2013)
  11. Kim, E., "Performance prediction of horizontal hydrokinetic energy converter using multiple-cylinder synergy in flow induced motion", Appl. Energy, 170, pp.92~100 (2016)
  12. Lee, C. M., "A fluidestructure interaction simulation on the wake-induced vibration of tandem cylinders with pivoted rotational motion", Phys. Fluids, 33, pp.045107~ (2021)
  13. Ma, C., "Nonlinear piecewise restoring force in hydrokinetic power conversion using flow induced motions of single cylinder", Ocean Eng, 128, pp.1~12 (2016)
  14. Ma, C., "Nonlinear piecewise restoring force in hydrokinetic power conversion using flow-induced vibrations of two tandem cylinders", J. Offshore Mech. Arctic Eng, 140, pp.041901~ (2018)
  15. Manfrida, G., "Dynamic model of a vortex-induced energy converter", J. Energy Resour. Technol, 138, pp.062002~ (2016)
  16. Savitzky, A., "Smoothing and differentiation of data by simplified least squares procedures", Anal. Chem, 36, pp.1627~1639 (1964)
  17. Sun, H., "Virtual springedamping system for flow-induced motion experiments", J. Offshore Mech. Arctic Eng, 137, pp.061801~ (2015)

관련 논문AI추천

이 간행물의 다른 논문 (70건)