Vibration Analysis of One-dimensional Structures with Discontinuities Using the Acoustical Wave Propagator Method
نویسندگان
چکیده
A new numerical method, named the acoustical wave propagator method, is introduced to describe the dynamic characteristics of one-dimensional structures with discontinuities. The acoustical wave propagator is derived and implemented by combining Chebyshev polynomial expansion and fast Fourier transformation. Numerical accuracy of the acoustical wave propagator method is examined and compared with the exact analytical solutions. Furthermore, this method is extended to investigate the wave propagation and reflection of elastic waves in beams at the location of a sudden change in cross-section.
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