2026-09-21T03:54:18Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/398902022-01-13T07:54:36Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Sang Gook Kim.
Traina, Zachary J
Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2008-01-10T15:52:10Z
2008-01-10T15:52:10Z
2007
2007
http://hdl.handle.net/1721.1/39890
182541171
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.
Includes bibliographical references (leaves 65-68).
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.
by Zachary J. Traina.
S.M.
75 leaves
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
A large strain piezoelectric microactuator by folding assembly
Thesis
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