Thesis (M.S.)--University of Wisconsin--Madison, 1983. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 196-197).

Thesis (M.S.)--Ohio University, June, 2001. / Title from PDF t.p.

Thesis (M.S.)--Ohio University, August, 1992. / Title from PDF t.p.

Thesis (M. Phil.)--University of Hong Kong, 1992.

Control and other issues related to the use of modular robotic fingers to perform dexterous manipulation are considered. The specific manipulation strategy to be implemented, which focuses on parts acquisition and takes advantage of sliding contacts which exist between the fingers and the object being manipulated, is described. The results of early implementation efforts are discussed in which a standard individual-actuator PID control approach was used. Problems related to friction and other effects are identified which were encountered in these early efforts. A computed torque control scheme which provides adaptive friction compensation is proposed for future use with the fingers. Results are discussed of simulations performed to help determine if use with the fingers of this proposed approach will improve system tracking performance in the presence of a variety of disturbances like those which will affect the fingers during actual operation. Implications of results for future implementation efforts are discussed.

No description available.

published_or_final_version / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy

No description available.

University of Macau / Faculty of Science and Technology. / Department of Electromechanical Engineering

by Li Chi Keung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaves 95-100). / Acknowledgements --- p.ii / Abstract --- p.iii / Notations --- p.vii / List of Figures --- p.viii / List of Tables --- p.x / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Serial Manipulator and Parallel Manipulator --- p.1 / Chapter 1.2 --- Literature Overview --- p.4 / Chapter 1.3 --- Objective --- p.10 / Chapter Chapter 2 --- Classification and General Approach / Chapter 2.1 --- Overview --- p.11 / Chapter 2.2 --- Classification of Stewart Platform Type Parallel Manipulators --- p.12 / Chapter 2.3 --- Sub-structures of Stewart Platform Type Mechanism --- p.14 / Chapter 2.3.1 --- Point-Line (PL) Structure --- p.14 / Chapter 2.3.2 --- Point-Body (PB) Structure --- p.16 / Chapter 2.3.3 --- Line-Line (LL) Structure --- p.17 / Chapter 2.3.4 --- Line-Body (LB) Structure --- p.21 / Chapter 2.4 --- Approach for Closed-Form Direct Position Analysis --- p.25 / Chapter 2.4.1 --- DOF of Stewart Platform Type Parallel Mechanism --- p.26 / Chapter 2.4.2 --- DOF of Stewart Platform Type Parallel Mechanism with Disconnected Legs --- p.27 / Chapter 2.4.3 --- Formation of Rotation and Translation Matrices --- p.28 / Chapter 2.4.4 --- Formation of Closure Equations --- p.32 / Chapter 2.4.5 --- Elimination of Variables --- p.33 / Chapter 2.4.6 --- Final Solution --- p.35 / Chapter 2.5 --- Summary --- p.35 / Chapter Chapter 3 --- Case Studies / Chapter 3.1 --- Overview --- p.37 / Chapter 3.2 --- Type 5-5 Case II --- p.38 / Chapter 3.3 --- Type 6-5 --- p.47 / Chapter 3.4 --- Type 6-6 with 4 Collinear Joint Centers on Both Link (type 6-6 (L4L)) --- p.51 / Chapter 3.5 --- Type 6-6 with 4 Collinear Joint Centers on Movable Link (type 6-6 (L4B)) --- p.59 / Chapter 3.6 --- Summary --- p.63 / Chapter Chapter 4 --- Singularity Analysis / Chapter 4.2 --- General Theory --- p.64 / Chapter 4.2.1 --- Multiple Root Configuration --- p.64 / Chapter 4.2.2 --- Special Configuration --- p.66 / Chapter 4.2.3 --- Multiple Root Configuration and Special Configuration --- p.66 / Chapter 4.3 --- Examples --- p.66 / Chapter 4.3.2 --- Special Planar Parallel Manipulator --- p.66 / Chapter 4.3.4 --- Special Stewart Platform Type Parallel Manipulator --- p.71 / Chapter 4.4 --- Summary --- p.74 / Chapter Chapter 5 --- Conclusions and Recommendations for Future Research / Chapter 5.1 --- Conclusions --- p.75 / Chapter 5.2 --- Recommendations for Future Research --- p.77 / Appendices / Chapter A.l --- Direct Position Analysis of P5B Structure --- p.79 / Chapter A.2 --- Analytic Expressions for Symbols of Type 5-5 Case II --- p.82 / Chapter A.3 --- Analytic Expressions for Sybmols of Type 6-6 (L4L) --- p.84 / Chapter A.4 --- Mathematica Scripts for Case Studies in Chapter 3 --- p.85 / Chapter A.4.1 --- Type 5-5 Case II --- p.85 / Chapter A.4.2 --- Type 6-6 with 4 Collinear Joint Centers on Both Link Connected Together --- p.91 / Reference --- p.95