This paper concerns wave reflection, transmission, and propagation in Timoshenko beams together with wave analysis of vibrations in Timoshenko beam structures. The transmission and reflection matrices for various discontinuities on a Timoshenko beam are derived. Such discontinuities include general point supports, boundaries, and changes in section. The matrix relations between the injected waves and externally applied forces and moments are also derived. These matrices can be combined to provide a concise and systematic approach to vibration analysis of Timoshenko beams or complex structures consisting of Timoshenko beam components. The approach is illustrated with several numerical examples.
Wave Reflection and Transmission in Timoshenko Beams and Wave Analysis of Timoshenko Beam Structures
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Mei, C., and Mace, B. R. (December 17, 2004). "Wave Reflection and Transmission in Timoshenko Beams and Wave Analysis of Timoshenko Beam Structures." ASME. J. Vib. Acoust. August 2005; 127(4): 382–394. https://doi.org/10.1115/1.1924647
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