Further development of local volume displacement sensors is presented. This development supports the implementation of noise control techniques that are based on minimization of local volume displacements, velocities, or accelerations of a vibrating structure. In this paper, we present a general methodology for the development of local volume displacement sensors for vibrating beams using P_olyV_inyliD_ene F_luoride (PVDF). This methodology was verified experimentally for a clamped beam. The local volume displacement measured using a single PVDF sensor matched the local volume displacement found using multiple accelerometer measurements. The resulting sensors span the entire length of the beam. They have a quadratic shape over that portion of the beam whose volume displacement is desired, and they have a linear shape over all other sections. Sensor design issues for different beam boundary conditions are discussed along with a presentation of some sample sensor shapes for various beam segments and boundary conditions.
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January 2001
Technical Papers
Theoretical Development and Experimental Validation of Local Volume Displacement Sensors for a Vibrating Beam
Marcellin B. Zahui,
Marcellin B. Zahui
Mechanical Engineering Department, Lake Superior State University, 650 W. Easterday Avenue, Sault Sainte Marie, MI 49783
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James W. Kamman,
James W. Kamman
Mechanical and Aeronautical Engineering Department, Western Michigan University, Kalamazoo, MI 49008
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Koorosh Naghshineh
e-mail: naghshineh@wmich.edu
Koorosh Naghshineh
Mechanical and Aeronautical Engineering Department, Western Michigan University, Kalamazoo, MI 49008
**
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Marcellin B. Zahui
Mechanical Engineering Department, Lake Superior State University, 650 W. Easterday Avenue, Sault Sainte Marie, MI 49783
James W. Kamman
Mechanical and Aeronautical Engineering Department, Western Michigan University, Kalamazoo, MI 49008
Koorosh Naghshineh
**
Mechanical and Aeronautical Engineering Department, Western Michigan University, Kalamazoo, MI 49008
e-mail: naghshineh@wmich.edu
Contributed by the Technical Committee on Vibration and Sound for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received March 1999; revised August 2000. Associate Editor: K. W. Wang.
J. Vib. Acoust. Jan 2001, 123(1): 110-118 (9 pages)
Published Online: August 1, 2000
Article history
Received:
March 1, 1999
Revised:
August 1, 2000
Citation
Zahui, M. B., Kamman , J. W., and Naghshineh, K. (August 1, 2000). "Theoretical Development and Experimental Validation of Local Volume Displacement Sensors for a Vibrating Beam ." ASME. J. Vib. Acoust. January 2001; 123(1): 110–118. https://doi.org/10.1115/1.1320816
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