AN ANALYTICAL AND EXPERIMENTAL INVESTIGATION ON ACTIVE CONTROL OF THE FLEXURAL WAVE TRANSMISSION IN A SIMPLY SUPPORTED RIBBED PLATE
✍ Scribed by N.J. KESSISSOGLOU
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 278 KB
- Volume
- 240
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
The feedforward active control of the plate #exural wave transmission along a semi-in"nite simply supported ribbed plate has been analytically and experimentally investigated. The ribbed plate was modelled as a continuous system using equations of motion to describe the plate in #exure and the beam in both #exure and torsion. Due to the simply supported and in"nite boundary conditions, the structural response is described by a combination of a modal and a travelling wave solution. The primary and secondary sources are modelled as single point forces, with the primary force located on the plate and the secondary control force applied to the reinforcing beam. This force con"guration is to demonstrate the feasibility of attenuating the plate response by actively modifying the beam response. Results show that using a single, properly located control actuator and a single error sensor, global attenuation of the transmitted plate vibration through the reinforcing beam is achieved.
2001 Academic Press