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Keyword: vibrations
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Journal Articles
Article Type: Special Section: Computational Fluid Mechanics And Fluid–Structure Interaction
J. Appl. Mech. January 2012, 79(1): 010902.
Published Online: December 13, 2011
...Thomas Miras; Jean-Sébastien Schotté; Roger Ohayon It is proposed to investigate in this paper the damped vibrations of an incompressible liquid contained in a deformable tank. A linearized formulation describing the small movements of the system is presented. At first, a diagonal damping is...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. January 2012, 79(1): 011007.
Published Online: December 8, 2011
...M. Eissa; M. Kamel; A. T. El-Sayed An investigation into the passive vibration reduction of the nonlinear spring pendulum system, simulating the ship roll motion is presented. This leads to a four-degree-of-freedom (4-DOF) system subjected to multiparametric excitation forces. The two absorbers in...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. November 2011, 78(6): 061021.
Published Online: September 15, 2011
... are determined, and the strength of instability corresponding to different period numbers is analyzed. 07 05 2010 10 03 2011 15 09 2011 15 09 2011 bifurcation mechanical stability vibrations wave equations wave propagation Translating String Sinusoidally Varying...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. November 2011, 78(6): 061014.
Published Online: August 25, 2011
...I. Keles; N. Tutuncu Free and forced vibration analyses of functionally graded hollow cylinders and spheres are performed and analytical benchmark solutions are presented. The material is assumed to be graded in the radial direction according to a simple power law. The Laplace transform method is...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. July 2011, 78(4): 041017.
Published Online: April 15, 2011
... vibration characteristics of the cable, as well as the dynamic response of the cable under arbitrarily moving ends. The results for an equilibrium and free vibration characteristics around the equilibrium are experimentally validated on a laboratory steel band. The methodology is applied to elevator...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. July 2011, 78(4): 041013.
Published Online: April 13, 2011
...) vibrations viscosity A rigid structure vibrating in a viscous fluid is a common configuration in micro-electromechanical systems . Applications of these devices include gyroscopes designed to operate at atmospheric pressure , accelerometers , viscometers , and a range of biological and...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. July 2011, 78(4): 041010.
Published Online: April 13, 2011
... transient response vibrations wavelet transforms response reconstruction substructure unit impulse response function wavelet transform The interest to monitor a structure and to detect damage at an early stage prevails throughout the civil and mechanical engineering communities. Vibration...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. July 2011, 78(4): 041002.
Published Online: April 12, 2011
...M. A. Agwa; A. Pinto da Costa This paper studies the friction induced vibrations that may develop in the neighborhood of steady sliding states of elastic orthotropic half-spaces compressed against a rigid plane moving tangentially with a prescribed speed. These vibrations may lead to flutter...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. March 2011, 78(2): 021018.
Published Online: December 20, 2010
... 2010 20 12 2010 nonlinear dynamical systems vibrations multibody dynamics singular mass matrix general constrained systems multiscale dynamical systems use of more generalized coordinates than minimum The motion of a multibody system is generally highly nonlinear and...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. January 2011, 78(1): 011018.
Published Online: October 26, 2010
...Xiao-Dong Yang; Li-Qun Chen; Jean W. Zu The vibrations and stability are investigated for an axially moving rectangular antisymmetric cross-ply composite plate supported on simple supports. The partial differential equations governing the in-plane and out-of-plane displacements are derived by the...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. January 2011, 78(1): 011020.
Published Online: October 26, 2010
... differential equations stability vibrations FEM DQM moving load problems time step schemes sample time points The numerical solution of a moving load class of problems is of great importance due to their applications in a wide class of engineering fields. Bridges on which vehicles or trains...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. January 2011, 78(1): 011015.
Published Online: October 22, 2010
... can be easily determined. By matching boundary conditions, a coupled infinite system of linear algebraic equations is derived as an analytical model for the free vibration of a circular plate with multiple circular holes. The direct-searching approach is utilized in the truncated finite system to...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. November 2010, 77(6): 061010.
Published Online: August 20, 2010
...S. Ziaei-Rad; E. Kouchaki; M. Imregun This paper studies the effects of shaft rub on a rotating system’s vibration response with emphasis on heat generation at the contact point. A 3D heat transfer code, coupled to a 3D vibration code, was developed to predict the dynamic response of a rotor in the...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. November 2010, 77(6): 061007.
Published Online: August 19, 2010
...M. A. Rastgaar; M. Ahmadian; S. C. Southward Orthogonal eigenstructure control is a novel control method that can be used for vibration suppression in flexible structures. The method described in this study does not need defining the desired locations of the closed-loop poles or predetermining the...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051601.
Published Online: May 17, 2010
... difference in the launch process and launch structure. This paper is concerned with an analysis of the dynamic characteristics of this high performance weapon system by numerical simulation. Based on its launch mechanism and launch structure, the vibration equation describing the vibration characteristics of...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. July 2010, 77(4): 041002.
Published Online: March 31, 2010
...D. Zhou; Y. K. Cheung; S. H. Lo This paper studies the free vibration of circular toroidal sectors with circular cross-sections based on the three-dimensional small-strain, linear elasticity theory. A set of orthogonal coordinates, composing the polar coordinate ( r , θ ) with the origin on the...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2010, 77(3): 031019.
Published Online: March 5, 2010
...Demetris Pentaras; Isaac Elishakoff Problem of matching a desired fundamental natural frequency is solved in the closed form for the polar-orthotropic inhomogeneous circular plate, which is clamped along its circumference. The vibration tailoring is performed by posing a semi-inverse eigenvalue...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2010, 77(3): 031006.
Published Online: February 4, 2010
...Jen-San Chen; Wei-Chia Ro This paper studies, both theoretically and experimentally, the deformation, the vibration, and the stability of a buckled elastic strip (also known as an elastica) constrained by a space-fixed point in the middle. One end of the elastica is fully clamped while the other...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. March 2010, 77(2): 021017.
Published Online: December 14, 2009
... configurations ranging from nearly pure beams to nearly pure shells. 22 05 2009 08 06 2009 14 12 2009 14 12 2009 beams (structures) elasticity Legendre polynomials perturbation theory shells (structures) vibrations This paper was motivated by the question: Is it possible...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. March 2010, 77(2): 021018.
Published Online: December 14, 2009
...J. G. Simmonds; A. P. Hosseinbor The two small parameters that appear in the final equations developed in Part I ( Simmonds and Hosseinbor, 2010, “The Free and Forced Vibrations of a Closed Elastic Spherical Shell Fixed to an Equatorial Beam—Part I: The Governing Equations and Special Solutions...