This paper investigates the influence exerted by small surface tension on the nonlinear normal sloshing modes of a two-dimensional irrotational, incompressible fluid in a rectangular container. To this end, the influence of surface tension on the modal frequencies is investigated by assuming pure slipping at the contact line and a 90 deg contact angle between the fluid surface and the walls. The regions of possible nonlinear internal resonances up to the fifth mode are highlighted. Away from the highlighted regions, the influence of surface tension on the effective nonlinearity of the lowest four modes is studied and used to shed light onto its effect on the softening/hardening behavior of the uncoupled nonlinear modes. Subsequently, the response of the sloshing waves near two-to-one internal resonances is studied. It is shown that, in the vicinity of such internal resonance, the steady-state sloshing response can either contain a contribution from the two interacting modes (coupled-mode response) or only the high-frequency mode (high-frequency uncoupled mode response). The regions where the coupled mode uniquely exists are shown to depend on the surface tension. Moreover, it is demonstrated that such regions may be underestimated considerably when neglecting the influence of the cubic nonlinearities.
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March 2017
Research-Article
Nonlinearity of Finite-Amplitude Sloshing in Rectangular Containers
Mohammed F. Daqaq,
Mohammed F. Daqaq
Nonlinear Vibrations and Energy
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
e-mail: mdaqaq@clemson.edu
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
e-mail: mdaqaq@clemson.edu
Search for other works by this author on:
Yawen Xu,
Yawen Xu
Nonlinear Vibrations and Energy
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
Search for other works by this author on:
Walter Lacarbonara
Walter Lacarbonara
Department of Structural and
Geotechnical Engineering,
University of Rome, LaSapienza,
Rome 0318, Italy
e-mail: walter.lacarbonara@uniroma1.it
Geotechnical Engineering,
University of Rome, LaSapienza,
Rome 0318, Italy
e-mail: walter.lacarbonara@uniroma1.it
Search for other works by this author on:
Mohammed F. Daqaq
Nonlinear Vibrations and Energy
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
e-mail: mdaqaq@clemson.edu
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
e-mail: mdaqaq@clemson.edu
Yawen Xu
Nonlinear Vibrations and Energy
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
Harvesting Laboratory,
Department of Mechanical Engineering,
Clemson University,
Clemson, SC 29634
Walter Lacarbonara
Department of Structural and
Geotechnical Engineering,
University of Rome, LaSapienza,
Rome 0318, Italy
e-mail: walter.lacarbonara@uniroma1.it
Geotechnical Engineering,
University of Rome, LaSapienza,
Rome 0318, Italy
e-mail: walter.lacarbonara@uniroma1.it
Contributed by the Applied Mechanics Division of ASME for publication in the JOURNAL OF APPLIED MECHANICS. Manuscript received September 29, 2016; final manuscript received December 1, 2016; published online December 22, 2016. Editor: Yonggang Huang.
J. Appl. Mech. Mar 2017, 84(3): 031002 (13 pages)
Published Online: December 22, 2016
Article history
Received:
September 29, 2016
Revised:
December 1, 2016
Citation
Daqaq, M. F., Xu, Y., and Lacarbonara, W. (December 22, 2016). "Nonlinearity of Finite-Amplitude Sloshing in Rectangular Containers." ASME. J. Appl. Mech. March 2017; 84(3): 031002. https://doi.org/10.1115/1.4035363
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