A large strain piezoelectric microactuator by folding assembly
Name
182541171-MIT.pdf
Description
Full printable version
Size
9.5 MB
Format
Adobe PDF
Checksum (MD5)
26b8f6e4143b4cbca281b7e15377c1c7
Author(s)
Traina, Zachary J
Advisor(s)
Sang Gook Kim.
Date Issued
2007
Publisher
Massachusetts Institute of Technology
Abstract
In-plane amplification of thin film piezoelectric strain has been previously demonstrated using mechanical flexures fabricated at the micro scale. This new work presents a method by which that amplification can be increased, along with a method to reduce parasitic out of plane bending present in prior designs. Fabricated actuator triplets demonstrated peak unblocked displacement of 15 [mu]m, 3% total contraction by length, with an estimated blocking force of [approx.] -9.2 [mu]N. Methods of arraying one such cell massively in series and in parallel are also presented, with the long term goal of creating a large strain, efficient, and low power macro scale actuator from individual micro scale components.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.
Includes bibliographical references (leaves 65-68).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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