Journal article 1146 views
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing
Journal of Mechanisms and Robotics, Volume: 11, Issue: 5, Start page: 054502
Swansea University Authors:
Jiaying Zhang , Alexander Shaw
, Mohammadreza Amoozgar, Michael Friswell
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1115/1.4043818
Abstract
The energy balancing concept seeks to reduce actuation requirements for a morphing structure by strategically locating negative stiffness devices to tailor the required deployment forces and moments. One such device is the spiral pulley negative stiffness mechanism. This uses a cable connected with...
Published in: | Journal of Mechanisms and Robotics |
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ISSN: | 1942-4302 1942-4310 |
Published: |
ASME International
2019
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URI: | https://cronfa.swan.ac.uk/Record/cronfa51312 |
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2020-11-19T15:55:54.7316208 v2 51312 2019-08-05 Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing 12b61893c794b14f11cf0a84cb947d0e 0000-0001-7308-5090 Jiaying Zhang Jiaying Zhang true false 10cb5f545bc146fba9a542a1d85f2dea 0000-0002-7521-827X Alexander Shaw Alexander Shaw true false 56910e9937b39a1a96d6252845c385d3 Mohammadreza Amoozgar Mohammadreza Amoozgar true false 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 2019-08-05 EEN The energy balancing concept seeks to reduce actuation requirements for a morphing structure by strategically locating negative stiffness devices to tailor the required deployment forces and moments. One such device is the spiral pulley negative stiffness mechanism. This uses a cable connected with a pre-tension spring to convert the decreasing spring force into the increasing balanced torque. The kinematics of the spiral pulley is first developed for bidirectional actuation, and its geometry is then optimized by employing an energy conversion efficiency function. The performance of the optimized bidirectional spiral pulley is then evaluated through the net torque, the total required energy, and energy conversion efficiency. Then, an additional test rig tests the bidirectional negative stiffness property and compares the characteristics with the corresponding analytical result. Exploiting the negative stiffness mechanism is of significant interest not only in the field of morphing aircraft but also in many other energy and power reduction applications. Journal Article Journal of Mechanisms and Robotics 11 5 054502 ASME International 1942-4302 1942-4310 Pulleys, Stiffness, Torque, Rotation, Springs, Cables, Kinematics 1 10 2019 2019-10-01 10.1115/1.4043818 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2020-11-19T15:55:54.7316208 2019-08-05T09:59:42.4514422 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Jiaying Zhang 0000-0001-7308-5090 1 Alexander Shaw 0000-0002-7521-827X 2 Mohammadreza Amoozgar 3 Michael Friswell 4 Benjamin K. S. Woods 5 |
title |
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing |
spellingShingle |
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing Jiaying Zhang Alexander Shaw Mohammadreza Amoozgar Michael Friswell |
title_short |
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing |
title_full |
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing |
title_fullStr |
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing |
title_full_unstemmed |
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing |
title_sort |
Bidirectional Spiral Pulley Negative Stiffness Mechanism for Passive Energy Balancing |
author_id_str_mv |
12b61893c794b14f11cf0a84cb947d0e 10cb5f545bc146fba9a542a1d85f2dea 56910e9937b39a1a96d6252845c385d3 5894777b8f9c6e64bde3568d68078d40 |
author_id_fullname_str_mv |
12b61893c794b14f11cf0a84cb947d0e_***_Jiaying Zhang 10cb5f545bc146fba9a542a1d85f2dea_***_Alexander Shaw 56910e9937b39a1a96d6252845c385d3_***_Mohammadreza Amoozgar 5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell |
author |
Jiaying Zhang Alexander Shaw Mohammadreza Amoozgar Michael Friswell |
author2 |
Jiaying Zhang Alexander Shaw Mohammadreza Amoozgar Michael Friswell Benjamin K. S. Woods |
format |
Journal article |
container_title |
Journal of Mechanisms and Robotics |
container_volume |
11 |
container_issue |
5 |
container_start_page |
054502 |
publishDate |
2019 |
institution |
Swansea University |
issn |
1942-4302 1942-4310 |
doi_str_mv |
10.1115/1.4043818 |
publisher |
ASME International |
college_str |
Faculty of Science and Engineering |
hierarchytype |
|
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facultyofscienceandengineering |
hierarchy_top_title |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
hierarchy_parent_title |
Faculty of Science and Engineering |
department_str |
School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised |
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0 |
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description |
The energy balancing concept seeks to reduce actuation requirements for a morphing structure by strategically locating negative stiffness devices to tailor the required deployment forces and moments. One such device is the spiral pulley negative stiffness mechanism. This uses a cable connected with a pre-tension spring to convert the decreasing spring force into the increasing balanced torque. The kinematics of the spiral pulley is first developed for bidirectional actuation, and its geometry is then optimized by employing an energy conversion efficiency function. The performance of the optimized bidirectional spiral pulley is then evaluated through the net torque, the total required energy, and energy conversion efficiency. Then, an additional test rig tests the bidirectional negative stiffness property and compares the characteristics with the corresponding analytical result. Exploiting the negative stiffness mechanism is of significant interest not only in the field of morphing aircraft but also in many other energy and power reduction applications. |
published_date |
2019-10-01T04:03:09Z |
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1763753265604853760 |
score |
11.021648 |