Distributed Modal Sensors for Rectangular Plate Structures

K Jian (Chongqing University, PR China) & MI Friswell (University of Bristol)

Journal of Intelligent Material Systems and Structures, Vol. 18, No. 9, September 2007, pp. 939-948

Abstract

Modal sensors are sensitive to the structureís response at one or more modes and insensitive to the response due to other modes. Design techniques are well established for distributed sensors for beam structures, but plate structures are more difficult unless the sensor thickness or effectiveness is altered. This paper considers the design of distributed modal sensors for plate structures. The sensors are assumed to be constant thickness and the modes of the plate are assumed to be known functions. The boundary is assumed to be smooth and parameterized using a finite number of points and spline interpolation. The approach is demonstrated on a simply supported uniform rectangular plate and the modes are obtained from the analytical solution. The effect of the number of modes of interest, the form of the objective function and the number of boundary points is highlighted.

Paper Availability

This material has been published in the Journal of Intelligent Material Systems and Structures, Vol. 18, No. 9, September 2007, pp. 939-948. Unfortunately the copyright agreement with Sage Publications does not allow for the PDF file of the paper to be available on this website.


Link to paper using doi:10.1177/1045389X06070589

Link to the Journal website