NDLI: High-displacement piezoelectric actuator utilizing a meander-line geometry II. Theory

Content Provider	IEEE Xplore Digital Library
Author	Robbins, W.P.
Copyright Year	1986
Abstract	For pt.I see ibid., vol.38, no.5, p.454-60 (1991). A simple electromechanical model of the meander-line actuator is developed. The model consists of a voltage-actuated force source, which is the result of the piezoelectric properties of the bars that make up the actuator, in parallel mechanically with a stiff spring that models the compression-expansion response of the piezoelectric bars. This parallel combination is in series mechanically with a second spring. This series connection is subjected to large bending moments that cause the stiffness of this second spring to be much less than the stiffness of the spring in parallel with the force source. The addition of stiffeners to the actuator can significantly reduce these bending moments and thus increase the stiffness of this second spring. As a result, the force generation capability of the actuator is significantly increased without affecting its displacement capability.<>
Page Count	7
File Size	514906
Starting Page	461
Ending Page	467
File Format	PDF
ISSN	08853010
Volume Number	38
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Piezoelectric actuators Geometry Springs Structural beams Connectors Bars Solid modeling Mechanical factors Hydraulic actuators Predictive models
Content Type	Text
Resource Type	Article
Subject	Acoustics and Ultrasonics Instrumentation Electrical and Electronic Engineering

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