An Alternative Equation of the Flexural Vibration
It is given an alternative partial differential equation for flexural vibration of the uniform beam. The equation takes account of shear and lateral inertia by means of the term 2i2[(1 + )/](∂4y/∂x4), where i is the radius of gyration, is Poisson's ratio, is a constant depending on the shape of the cross section. The difference between resonant frequencies calculated from alternative and Timoshenko's equation for different boundary conditions and Poisson's ratios is less than 3%.
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Document Type: Research Article
Publication date: November 1, 1998
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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