Design principles for manipulation with astrictive contact

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Abstract/Contents

Abstract
Anthropomorphic hands have existed in research circles for over thirty years, yet simple, parallel grippers continue to be the norm in manufacturing and real-world applications because they deliver strong grips in a light and compact package. Many-jointed hands have significant kinematic advantages over their less mobile counterparts but must also deliver robust strength without sacrificing that dexterity if they are to be adopted in more practical settings. Astrictive contact conditions, achieved through suction, gecko-inspired adhesives, and micro-spines, can improve grasp quality without decreasing mobility or increasing actuation effort but demand a novel set of design considerations. Rather than normal forces and point contacts, the principles of high contact area, shear load sharing, and even normal stress distribution determine the limits of manipulation capacity. These three conditions are explored theoretically and implemented practically on four robotic manipulators. Together, these prototypes form a framework for manipulation with astrictive contact through a combination of passive mechanical structures, practical controls, and novel actuation schemes.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Ruotolo, Wilson
Degree supervisor Cutkosky, Mark R
Thesis advisor Cutkosky, Mark R
Thesis advisor Kennedy, Monroe
Thesis advisor Khatib, Oussama
Degree committee member Kennedy, Monroe
Degree committee member Khatib, Oussama
Associated with Stanford University, Department of Mechanical Engineering

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Wilson Ruotolo.
Note Submitted to the Department of Mechanical Engineering.
Thesis Thesis Ph.D. Stanford University 2021.
Location https://purl.stanford.edu/wv950cd0334

Access conditions

Copyright
© 2021 by Wilson Ruotolo
License
This work is licensed under a Creative Commons Attribution Share Alike 3.0 Unported license (CC BY-SA).

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