Modeling and management vibroacoustic emission homogeneous plate under the action of external forces concentrated
DOI:
https://doi.org/10.18372/2306-1472.40.1777Keywords:
віброакустичне випромінювання, звукове випромінювання, зовнішні сили, компенсація концентрованого навантаження, пластина, поперечна вібрація, рівень звукової потужності, теорія коливаньAbstract
The model of rectangular plate acoustic radiation and transverse motion were presented, and its investigation was performed. The solution is received based on classisal plate theory. Vibration response and sound radiation of plates with simply-supported boundary conditions was discussed. Concentrated harmonic forces are used as an external excitation. The general confirmities to the law have been established for the changes of sound radiation, depending on the parameters of external excitations. An experiment was performed for justification of analytical approach, which is used for computations. Eigenfrequencies of free plate oscillations, which are received analytically, are in good agreement with experimental results.
References
Leissa A.W. Vibration of plates / A.W. Leissa // National aeronautics and space administration, 1993.
Preumont A. Vibration control of active structures / A. Preumont. − Kluwer academic publishers, Dordrecht, 2003. − 350 p.
Hansen C.H. Active Control of Noise and Vibration E and FN Spon / C.H. Hansen, S.D. Snyder, London. 1997.
Lee J.-C. Active control of sound radiation from a rectangular plate excited by a line moment / J.-C. Lee, J.-C. Chen // Journal of Sound and Vibration, 1999. − № 220 (1). − Р. 99−115.
Makarenko V.M. Parametric investigation of acoustic radiation by a beam under load and actuator forces / V.M. Makarenko et al.// NAU Proceedings 2005. − №4. − Р. 122−133.
Makarenko V.M. Investigation of sound radiation by cantilever beam / V.M. Makarenko // Вісник НАУ. − 2006. − № 1. − С. 169−172.
Makarenko V.M. Research of the modal response of simply supported and cantilever beams subjected to point and distributed harmonic excitations / V.M. Makarenko // Proceedings of the NAU. − 2006. − №3. − Р. 101−107.
Makarenko V.M. Modeling and control of sound radiation by simply supported and cantilever beam coupled with smart material / V.M. Makarenko // Proceedings of the NAU. − 2007. − №3. − Р. 142−150.
Makarenko V.M. Analysis of isotropic actuator application for excitations compensation / V.M. Makarenko // Proceedings of the third world congress "Aviation in the XXI century". − 2008. − Vol. 2. − Р. 4.61−4.62.
