DocumentCode :
1148011
Title :
A New Approach to Modeling System Dynamics—In the Case of a Piezoelectric Actuator With a Host System
Author :
Li, J.W. ; Chen, X.B. ; Zhang, W.J.
Author_Institution :
Dept. of Mech. Eng., Univ. of Saskatchewan, Saskatoon, SK, Canada
Volume :
15
Issue :
3
fYear :
2010
fDate :
6/1/2010 12:00:00 AM
Firstpage :
371
Lastpage :
380
Abstract :
With increasing sophistication in the structure and behavior of engineered plants, the system dynamics are becoming more complicated than ever before. This paper presents a new approach to model the dynamics of complex plants, and the new approach is rendered through a novel application of the axiomatic design theory (ADT). In particular, the dynamics to be modeled are analogous to the functional requirement of ADT, while the model structure (i.e., model) is analogous to the design parameter of ADT. In this way, the model development becomes to find a mapping from the functional requirement domain to the design parameter domain. The parameters of the model are further determined by decoupling the design matrix of ADT-an important formalism of ADT. To illustrate its effectiveness, the proposed approach is applied to a host system that is driven by a piezoelectric actuator (PEA). In particular, there is a bonding layer between the host system and the PEA, and sensors are embedded within the host system. To compare the proposed approach to other reported approaches, experiments were conducted, which suggested that the proposed approach is promising.
Keywords :
large-scale systems; piezoelectric actuators; axiomatic design theory; complex plant dynamics; host system; model structure; piezoelectric actuator; sensors; system dynamics modeling; Axiomatic design; dynamics; modeling; piezoelectric actuators (PEAs);
fLanguage :
English
Journal_Title :
Mechatronics, IEEE/ASME Transactions on
Publisher :
ieee
ISSN :
1083-4435
Type :
jour
DOI :
10.1109/TMECH.2009.2026473
Filename :
5173560
Link To Document :
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