This paper presents a distributed parameter model to study the effects of the harnessing cables on the dynamics of a host structure motivated by space structures applications. The structure is modeled using both Euler–Bernoulli and Timoshenko beam theories (TBT). The presented model studies the effects of coupling between various coordinates of vibrations due to the addition of the cable. The effects of the cable's offset position, pretension, and radius are studied on the natural frequencies of the system. Strain and kinetic energy expressions using linear displacement field assumptions and Green–Lagrange strain tensor are developed. The governing coupled partial differential equations for the cable-harnessed beam that includes the effects of the cable pretension are found using Hamilton's principle. The natural frequencies from the coupled Euler, Bernoulli, Timoshenko and decoupled analytical models are found and compared to the results of the finite element analysis (FEA).
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June 2019
Research-Article
Analytical Study of Coupling Effects for Vibrations of Cable-Harnessed Beam Structures
Karthik Yerrapragada,
Karthik Yerrapragada
Department of Mechanical and
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: kyerrapr@uwaterloo.ca
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: kyerrapr@uwaterloo.ca
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Armaghan Salehian
Armaghan Salehian
Department of Mechanical and
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: salehian@uwaterloo.ca
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: salehian@uwaterloo.ca
Search for other works by this author on:
Karthik Yerrapragada
Department of Mechanical and
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: kyerrapr@uwaterloo.ca
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: kyerrapr@uwaterloo.ca
Armaghan Salehian
Department of Mechanical and
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: salehian@uwaterloo.ca
Mechatronics Engineering,
University of Waterloo,
Waterloo, ON N2L 3G1, Canada
e-mail: salehian@uwaterloo.ca
1Corresponding author.
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received June 3, 2018; final manuscript received October 31, 2018; published online January 22, 2019. Assoc. Editor: Matthew Brake.
J. Vib. Acoust. Jun 2019, 141(3): 031001 (15 pages)
Published Online: January 22, 2019
Article history
Received:
June 3, 2018
Revised:
October 31, 2018
Citation
Yerrapragada, K., and Salehian, A. (January 22, 2019). "Analytical Study of Coupling Effects for Vibrations of Cable-Harnessed Beam Structures." ASME. J. Vib. Acoust. June 2019; 141(3): 031001. https://doi.org/10.1115/1.4042042
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