Discrete shaped strain sensors for intelligent structuresDesign of discrete, highly distributed sensor systems for intelligent structures has been studied. Data obtained indicate that discrete strain-averaging sensors satisfy the functional requirements for distributed sensing of intelligent structures. Bartlett and Gauss-Hanning sensors, in particular, provide good wavenumber characteristics while meeting the functional requirements. They are characterized by good rolloff rates and positive Fourier transforms for all wavenumbers. For the numerical integration schemes, Simpson's rule is considered to be very simple to implement and consistently provides accurate results for five sensors or more. It is shown that a sensor system that satisfies the functional requirements can be applied to a structure that supports mode shapes with purely sinusoidal curvature.
Document ID
19920051713
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Andersson, Mark S. (NASA Headquarters Washington, DC United States)
Crawley, Edward F. (MIT Cambridge, MA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Instrumentation And Photography
Report/Patent Number
AIAA PAPER 92-2406
Meeting Information
Meeting: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference