Browse > Article

Dynamic Suppression Effects of Liquid Container to the Baffle Number and Hole Diameter  

조진래 (정회원·부산대학교 기계공학부)
김민정 (부산대학교 대학원)
이상영 (부산대학교 대학원)
허진욱 (부산대학교 대학원)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.15, no.1, 2002 , pp. 147-154 More about this Journal
Abstract
The dynamic load caused by sloshing of internal fluid severely affects the structural and control stabilities of cylindrical liquid containers accelerating vertically. If the sloshing frequency of fluid is near the frequency of control system or the tank structure, large dynamic force and moment act on launching vehicles. For the suppression of such dynamic effects, generally flexible ring-type baffles are employed. In this paper, we perform the numerical analysis to evaluate the dynamic suppression effects of baffle. The parametric analysis is performed with respect to the baffle inner-hole diameter and two different baffle spacing types : equal spacing with respect to the tank and one with respect to the fluid height. The ALE (arbitrary Lagrangin-Eulerian) numerical method is adopted for the accurate and effective simulation of the hydrodynamic interaction between fluid and elastic structure.
Keywords
Fluid-Structure Interaction; ALE Neumerical Method; Ring-type Baffle; Impect Load; Liquid Container;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 K. Yamamoto, M. Kawahara, 'Structural Oscillation Control using Tuned Liquid Damper', Computers and Structures, Vol. 71, 1999, pp.435-446   DOI   ScienceOn
2 'Dytran User's Manual', MSC. Software Ver. 4.7
3 C. W. Hirt, A. A. Amsden, J. L. Cook, 'An arbitrary Lagrangian-Eulerian computing method for all flow speeds', J. Comput. Phys, Vol. 14, 1974, pp.227-253   DOI   ScienceOn
4 J. R. Cho, J. M. Song and J. K. Lee, 'Finite Element Techniques for the Free-Vibration and Seismic Analysis of Liquid-Storage Tanks', Finite Elements in Anlysis and Design., Vol. 37, No. 6-7, 2001, pp.467-483   DOI   ScienceOn
5 T. Belytschko, J. M. Kennedy, 'Computer models for subassembly simulation', Nucl. Engrg. Des, Vol. 49, 1978, pp.17-38   DOI   ScienceOn
6 H. N. Abramson, L. R. Gsrza, 'Some measurements of the effects of ring baffles in cylindrical tanks', J. Spacecraft Rockets, Vol. 1, No. 5, 1964, pp.560-564   DOI
7 S. Y. Lee and J. R. Cho, 'Baffled fuel-storage container: Parametric study on transient dynamic characteristics', Structural Engineering and Mechanics(in review)
8 D. G. Stephens, 'Flexible baffles for slosh damping', Spacecraft Rockets, Vol. 3, No. 5, 1966, pp.765-766   DOI
9 'Slosh Suppression', SP-8031, NASA, 1969
10 M. Souli, A. Ouahsine and L. Lewin, 'ALE formulation for fluid-structure interaction problems', Comput. Methods. Appl. Mech. Engrg, Vol. 190, 2000, pp.659-675   DOI   ScienceOn
11 T. J. R. Hughes, W. K. Liu, T. K. Zimmerman, 'Lagrangian-Eulerian finite element formulation for incompressible viscous flows', Comput. Methods. Appl. Mech. Engrg, Vol. 29, 1981, pp.329-349   DOI   ScienceOn