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Document Details
Document Type
:
Article In Journal
Document Title
:
Eigenstrain Techniques for Modeling Adaptive Structures. I: Active Stiffness Tailoring
إيغين سلالة تقنيات النمذجة التكيفية الهياكل. أنا : جارية تصلب الخياطة
Subject
:
Eigenstrain Techniques for Modeling Adaptive Structures. I: Active Stiffness Tailoring
Document Language
:
Arabic
Abstract
:
Three-dimensional eigenstrain techniques are used in this paper to model mechanical interactions in an active structure containing small embedded sensors and actuators. Eigenstrain techniques are used to predict the state of the strain inside the devices (sensors and actuators) under external and internal loads. The elastic energy of the structure is written in terms of the strain inside the devices, and an analytical dynamic model is developed based on a generalized form of Hamilton’s variational principle. As an example, the dynamic response of an active cantilever beam containing embedded mini-devices is investigated analytically and experimentally. Specifically, active stiffness tailoring capabilities are explored. An analytical solution to the variational problem is obtained by using the Raleigh-Ritz approach. A numerical example is given and the response of the active structure is verified experimentally, using a cantilever beam made of Alplex plastic as host material and piezoelectric (PZT-5H) devices as active mini-devices for sensing and actuation. The analytical results show reasonable agreement with the experimental observations.
ISSN
:
1319-1047
Journal Name
:
Engineering Sciences Journal
Volume
:
12
Issue Number
:
1
Publishing Year
:
1421 AH
2001 AD
Article Type
:
Article
Added Date
:
Wednesday, March 31, 2010
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
عبدالملك الجنيدي
aljunaidi, abdulmalek
Investigator
Doctorate
Files
File Name
Type
Description
26279.pdf
pdf
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