Masters Theses

Keywords and Phrases

Compliant Mechanisms; Constant Force Mechanism; Dynamics; Natural Frequency; Transient Response; Vibrations

Abstract

"Compliant mechanisms derive some or all of their mobility from the deflection of flexible members. A pseudo-rigid-body model (PRBM) provides an elegant and simple way of modeling and analyzing traditionally nonlinear large-deflection problems pertaining to compliant mechanisms. In this work, several aspects pertainting to the dynamics of compliant mechanisms are considered. First, dynamic models are derived to predict not only the natural frequency of the large-deflection systems, but also the transient response, using the PRBM approach. A unique multi-stage damping model is developed to determine the transient response in free vibration. Recent works have neglected to consider the transient response prediction of these problems. Investigations are conducted into the dynamic analysis of partially compliant slider mechanisms, composed of rigid and compliant segments as well as revolute and prismatic pairs are considered. The static response of these mechanisms is predicted and tested. The PRBM is then used to determine their dynamic response with emphasis on the energy characteristics of these mechanisms. Specifically, modular constant-force mechanisms are considered in this work primarily for their unique force-deflection characteristics. It is anticipated they would have a multitude of applications. Experimental results are presented ranging from static to dynamic testing"--Abstract, p. iii

Advisor(s)

Midha, A. (Ashok)

Committee Member(s)

Eversman, Walter
Kumar, Nishant

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical and Aerospace Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2015

Pagination

xii, 132 pages

Note about bibliography

Includes_bibliographical_references_(pages 126-131)

Rights

© 2015 Andrew Christian, All Rights Reserved

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 12173

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