Robust Planning for Dynamic Tensegrity Structures

Metadata Updated: February 28, 2019

The project will research and develop high-performance motion planners for dynamic tensegrity structures, which can be used as robotic mobility and manipulation platforms for space exploration purposes. Tensegrity is an exciting principle for developing impact tolerant and lightweight planetary rovers, which can achieve arbitrary forms and locomotion gaits. They can effectively adapt to highly unstructured environments, such as the uneven terrains of planetary bodies, and result in more affordable missions due to the reduced payload. Despite their benefits, controlling tensegrity robots with traditional control methods is challenging due to high-dimensionality, dependence on non-linear dynamics and significant uncertainty. As a result, most existing solutions limit the reasoning of the underlying dynamics and provide only quasi-static paths. This project aims to provide new algorithmic, mathematical and software tools that overcome this challenge and provide dynamically feasible trajectories for purposeful long-term navigation of tensegrity robots in uneven terrain . The focus is on advancing the state-of-the-art when planning in belief space for high-dimensional robots with significant dynamics, especially when these dynamics arise from the presence of soft contacts between a tensegrity structure and a highly unstructured, uneven terrain. The objective is for computational efficiency as well as a way to formally argue about the robustness of the computed trajectories. The solutions will be evaluated first in physics-based simulation and then on real tensegrity platforms that are of interest to NASA.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

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Dates

Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_91564
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id fdb52f8f-6de2-4ec2-ab1f-a6a081ad5e97
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2018-10-01
Homepage URL https://techport.nasa.gov/view/91564
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash df71c83328047d0de680709c023f525bdc9cf89b
Source Schema Version 1.1

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