Experimental investigation of slosh dynamics of liquid-filled containers
Tóm tắt
This paper is concerned with the experimental studies on the sloshing response of liquid-filled containers. A three-dimensional finite element analysis is carried out for the numerical simulation of this problem. The effects of sloshing are computed in the time domain using Newmark's time integration scheme. A simple experimental setup is designed and fabricated in-house to conduct experiments for measuring some of the basic parameters of sloshing. A sensor device is especially developed to record the free-surface wave heights. Each wave height sensor is a capacitance probe that detects the change in level of liquid (water) precisely with no time lag. The sensors are used in conjunction with a signal-processing unit in which the capacitance values are transduced to a voltage signal between 0 V and 10 V. These wave height sensors simultaneously record the slosh wave height near the periphery of the container wall from 16 predetermined locations to give the free-surface profiles of liquid at desired time steps. The experimental results are compared with those obtained from the present theoretical analysis, and good agreements are observed.
Tài liệu tham khảo
Westergaard, H.M., “Water Pressures on Dams during Earthquakes,” Trans. Am. Soc. Civ. Eng.,98 (1933).
Graham, E.W. andRodriguez, A.M., “The Characteristics of Fuel Motion Which Affect Airplane Dynamics,”J. Appl. Mech., ASME,19,381–388 (1952).
Abramson, H.N., “The Dynamic Behaviour of Liquids in Moving Containers,” NASA SP-106 (1966).
Aslam, M., Godden, W.G., andScalise, D.T., “Earthquake Sloshing in Annular and Cylindrical Tanks,”J. Eng. Mech., ASCE,EM3,371–389 (1979).
Washizu, K., Nakayama, T., Ikegawa, M., Tanaka, Y., andAdachi, T., “Some Finite Element Techniques for the Analysis of Nonlinear Sloshing Problems,”Finite Elements in Fluid, Vol. 5, R.H. Gallagher, J.T. Oden, O.C. Zenkiewicz, T. Kawai andM. Kawahara, eds., John Wiley & Sons, New York, 357–376 (1984).
Kobayashi, N., Meida, T., Shibata, H., andShinozaki, Y., “A Study of the Liquid Slosh Response in Horizontal Cylindrical Tanks,”J. Press. Vessel Tech., ASME,111,32–38 (1989).
Okamoto, T. andKawahara, M., “Two-dimensional Sloshing Analysis by Lagrangian Finite Element Method,”Int. J. Numer. Meth. Eng.,11,453–477 (1990).
Isaacson, M. andRyu, C.-S., “Earthquake-induced Sloshing in Vertical Container of Arbitrary Section,”J. Eng. Mech., ASCE,124,158–166 (1998).
Pal, N.C., Bhattacharyya, S.K., andSinha, P.K., “Coupled Slosh Dynamics of Liquid Filled Composite Cylindrical Tanks,”J. Eng. Mech., ASCE,125,491–495 (1999).
Pal, N.C., Bhattacharyya, S.K., andSinha, P.K., “Finite Element Coupled Slosh Analysis of Rectangular Liquid Filled Composite Tanks,”J. Reinforced Plastic Composites,18,1375–1407 (1999).
Cook, R.D., Malkus, D.S., andPlesha, M.E., Concepts and Applications of Finite Element Analysis, John Wiley & Sons, New York (1989).
Guyan, R.J., “Reduction of Stiffness and Mass Matrices,”J. AIAA,3,380 (1965).