𝔖 Bobbio Scriptorium
✦   LIBER   ✦

THE RESPONSE OF AND SOUND POWER RADIATED BY A CLAMPED RECTANGULAR PLATE

✍ Scribed by C.-C. Sung; J.T. Jan

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
372 KB
Volume
207
Category
Article
ISSN
0022-460X

No coin nor oath required. For personal study only.

✦ Synopsis

The dynamic response of a clamped vibrating rectangular plate excited by steady-state harmonic point forces, couples and piezomoments are derived, based on a new method. This method eliminates the difficulties involved in solving high order simultaneous equations/matrices and provides an easier approach to calculating the structurally radiated sound. Point force and piezomoment inputs are experimentally applied by using electromagnetic shaker and piezoceramic excitors attached to the surface of the plate. The coupling effect due to the bounding layer between the plate and the piezoceramic actuators is also determined. The sound radiation measurement is conducted in a reverberant room equipped with an anechoic chamber. Results from these experiments indicate that the proposed method provides an accurate and efficient approach for theoretical estimation of the response of clamped rectangular plates and the structurally radiated sound power.

πŸ“œ SIMILAR VOLUMES

ACTIVE CONTROL OF SOUND RADIATION FROM A
ACTIVE CONTROL OF SOUND RADIATION FROM A RECTANGULAR PLATE EXCITED BY A LINE MOMENT
✍ J.-C. Lee; J.-C. Chen πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 159 KB

This paper analytically investigates the active control of sound radiation from a simply supported rectangular plate with line moment excitation. This model simulates ship hull vibration due to the flutter of the ship's deck or the vibration of a fuselage due to the flutter of an aircraft wing. Two

CONTROL OF SOUND NOISE RADIATED FROM A P
CONTROL OF SOUND NOISE RADIATED FROM A PLATE USING DYNAMIC ABSORBERS UNDER THE OPTIMIZATION BY NEURAL NETWORK
✍ K. Nagaya; L. Li πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 218 KB

This paper reports a system for reducing sound radiated from a plate using electromagnetic vibration absorbers. Conventional design techniques for vibration absorbers are not appropriate for sound reduction absorbers, because higher-mode vibrations exert strong effects on noise. Hence, an analytical