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David A. Haggerty

5 accepted papers

2021

Hybrid Vine Robot With Internal Steering-Reeling Mechanism Enhances System-Level Capabilities

RA-L 2021

Continuum robots have high degrees of freedom and the ability to safely move in constrained environments. One class of soft continuum robot is the “vine” robot. This type of robot extends from its tip by everting or unfurling new material, driven by internal body pressure. Most vine robot examples s

Cited by 36SourceScholar
2020

A Dexterous Tip-extending Robot with Variable-length Shape-locking

ICRA 2020poster

Soft, tip-extending "vine" robots offer a unique mode of inspection and manipulation in highly constrained environments. For practicality, it is desirable that the distal end of the robot can be manipulated freely, while the body remains stationary. However, in previous vine robots, either the shape…

Cited by 37SourceScholar
2020

An untethered soft cellular robot with variable volume, friction, and unit-to-unit cohesion

IROS 2020poster

A fundamental challenge in the field of modular and collective robots is balancing the trade-off between unit-level simplicity, which allows scalability, and unit-level functionality, which allows meaningful behaviors of the collective. At the same time, a challenge in the field of soft robotics is…

Cited by 6SourceScholar
2019

Characterizing Environmental Interactions for Soft Growing Robots

IROS 2019poster

Soft, tip-extending devices, or “vine robots,” are a promising new paradigm for navigating cluttered and confined environments. Because they lengthen from their tips, there is little relative movement of the body with the environment, and the compressible nature of the device allows it to pass throu…

Cited by 44SourceScholar
2019

Low-Cost, Continuously Variable, Strain Wave Transmission Using Gecko-Inspired Adhesives

RA-L 2019

In robotics, high gear reductions are often required when using an electromagnetic motor to drive revolute joints, as in a humanoid robot. Strain wave gears (SWGs), also known as harmonic drives, are often used. However, these transmissions are relatively expensive and have a fixed gear ratio. Here,

Cited by 10SourceScholar