Structural health monitoring using shaped sensors

Friswell, M. I. and Adhikari, S.
50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, Palm Springs, California, USA, May 2009.

This paper is concerned with distributed sensors to measure the response of beam and plate structures. The design of modal sensors for beam structures is well established. The design for plate structures with constant thickness sensors may be achieved by optimizing the shape of the sensor boundary, or by optimizing the effectiveness of the electrode. Most applications consider vibration control, but this paper is concerned with structural health monitoring, where the sensor output is made sensitive to changes in key stiffness parameters, for example in joints. The procedure is based on finite element models of the structures, and thus distributed transducers may be designed for arbitrary beam and plate structures. A simulated beam excited by a rotating machine is used to demonstrate the approach.
BiBTeX Entry
@INPROCEEDINGS{cp59,
    AUTHOR={M. I. Friswell and S. Adhikari},
    TITLE={Structural health monitoring using shaped sensors},
    BOOKTITLE={Proceedings of the 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics \& Materials Conference},
    YEAR={2009},
    Address={Palm Springs, California, USA},
    Month={May}
}
by Sondipon Adhikari