Showing papers on "Smart material published in 1990"
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01 Jan 1990
6 citations
01 Oct 1990
TL;DR: The results to date indicate that the ANNs can easily mimic these system responses and the question is whether the mechanism that the network applies can be related to the mechanisms that the authors understand for classical analysis.
Abstract: Artificial neural networks(ANN5) and their ability to model and control dynamical systems for smart structures including sensors actuators and plants are being considered in our lab. Both linear and non-linear systems have been successfully modeled. We are presently working on two diverse regimes smart mechanical systems and smart electromagnetic systems. In order to better understand neural controllers as used in the smart electromagnetic structures we have directed our study of ANNs toward understanding the ability of the network to approximate system responses. We are training networks to mimic the desired output of the system. The damped sinusoid was chosen as the model and was approximated using a Jordan-like 8 iterative network. The results to date indicate that the ANNs can easily mimic these systemsthe question is whether the mechanism that the network applies can be related to the mechanisms that we understand for classical analysis. Sensor preprocessing represents a significant element in the smart material and structure concept. We are looking at certain network architectures as sensor preprocessors. Results from both these areas will be presented in this paper.© (1990) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
3 citations
01 Dec 1990
TL;DR: In this paper, the authors present a program for fiber optic smart-structures technology development, focusing on fiber production and embedding techniques, intelligent fiber-incorporation process monitoring, structural strain/temperature/vibration evaluation, and ultrasonic NDE of crack initiation and propagation in smart materials.
Abstract: The university-based program for fiber optic smart-structures technology development presently discussed gives attention to fiber production and embedding techniques, intelligent fiber-incorporation process monitoring, structural strain/temperature/vibration evaluation, and ultrasonic NDE of crack initiation and propagation in smart materials. Also being actively developed are shape-memory alloys, piezoelectric actuators, and real-time software for control and suppression of structural vibration.
2 citations