Increasing robustness and output performance of Variable Stiffness Actuators in periodic motions
Increasing robustness and output performance of Variable Stiffness Actuators in periodic motions
复制标题
提高可变刚度执行器在周期性运动中的鲁棒性和输出性能
DOI:
10.1016/j.mechmachtheory.2021.104645
复制
发表时间:
2022
影响因子:
5.2
通讯作者:
Jafari, Amir
中科院分区:
文献类型:
--
作者:
Exley, Trevor;Jafari, Amir
Variable Stiffness Actuators (VSAs) have been developed to address the safety and limited adaptability in interactions with uncertainties and energy efficiency issues which exist in traditional “stiff” robots. When desired performance of a VSA is given for a certain application, the question is how this desired performance can be achieved with minimum energy consumption and maximum robustness against uncertainties. This will lead to more compact, lighter but more powerful VSAs. This work develops an understanding of how to optimally design the parameters of the stiffness adjustment mechanisms by developing a framework that can robustly maximize the output performance of VSAs. Five VSA examples, each representing a different design set of stiffness adjustment mechanism, are being considered and evaluated based on the proposed optimization framework to perform a given periodic motion. The resultant optimal design of each set is then compared with the original design in terms of output performance and robustness. The proposed framework shows improvement of the output performance for the given periodic motion up to 546%, with robustness of up to 2.1% perturbation of the optimal design values.
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DOI:
10.1109/robot.2010.5509267
发表时间:
2010-05
期刊:
2010 IEEE International Conference on Robotics and Automation
影响因子:
--
作者:
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通讯作者:
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发表时间:
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期刊:
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影响因子:
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通讯作者:
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DOI:
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发表时间:
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期刊:
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影响因子:
--
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通讯作者:
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DOI:
10.1109/iros.2011.6094569
发表时间:
2011
期刊:
2011 IEEE/RSJ International Conference on Intelligent Robots and Systems
影响因子:
--
作者:
W. Friedl;Maxime Chalon;J. Reinecke;M. Grebenstein
通讯作者:
M. Grebenstein
影响因子:
1.1
作者:
J. Skorin;F. Granot
通讯作者:
F. Granot