Results 11 to 20 of about 2,664,170 (292)
Adaptive Variable Stiffness with strategically arranged materials [PDF]
Spool, 2020 By designing materials with variable stiffness, structures can adapt to various functional requirements. This paper presents variable stiffness explored in two case studies relying on an architected material approach that involved gradient pattern ...
Henriette Bier +2 more
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Design and Analysis of Variable-Stiffness Fast-Steering Mirror
Actuators, 2023 The non-variable stiffness of the flexible hinge in the fast-steering mirror (FSM) cannot adapt to varying load demands. To address this issue, this paper presents an innovative variable-stiffness rotational mechanism designed for use with FSMs. Firstly,
Jin Luo +5 more
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A Variable Stiffness Joint With Electrospun P(VDF-TrFE-CTFE) Variable Stiffness Springs [PDF]
IEEE Robotics and Automation Letters, 2018 This letter presents a novel rotational variable stiffness joint that relies on one motor and a set of variable stiffness springs. The variable stiffness springs are leaf springs with a layered design, i.e., an electro-active layer of electrospun aligned nanofibers of poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) [P(VDF-TrFE-CTFE)]
R. Carloni +4 more
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Design of a Variable Stiffness Spring with Human-Selectable Stiffness
2023 IEEE International Conference on Robotics and Automation (ICRA), 2023 Springs are commonly used in wearable robotic devices to provide assistive joint torque without the need for motors and batteries. However, different tasks (such as walking or running) and different users (such as athletes with strong legs or the elderly with weak legs) necessitate different assistive joint torques, and therefore, springs with ...
Chase W. Mathews, David J. Braun
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Dynamic Modeling and Control of Antagonistic Variable Stiffness Joint Actuator
Actuators, 2021 This study aims to develop a novel decoupling method for the independent control of the position and stiffness of a variable stiffness joint actuator (VSJA), which has been proven to be able to vary its stiffness in a larger range than other variable ...
Ming Zhang +6 more
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Frontiers in Neurorobotics, 2022 Variable stiffness joints have been gradually applied in rehabilitation robots because of their intrinsic compliance and greater ability to adjust mechanical stiffness. This paper designs a variable stiffness joint for upper limb rehabilitation training.
Bingshan Hu +5 more
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A pneumatic particle-blocking variable-stiffness bending actuator
AIP AdvancesThis study introduces a variable-stiffness pneumatic bending actuator to enhance the stiffness of flexible robots. The bending actuator combines the working principles of a pneumatic drive, a wedge structure, and particle blockage.
He Peng, Xia Wang, Dexu Geng
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Advanced Intelligent Systems, 2023 The 3D variable–stiffness structure can realize shape programming, reconstruction, adaptation, and locking, and therefore, it has a wide design creation space. Accurate local stiffness control is of considerable significance to the design and application
Qi Wang +8 more
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Heterogeneous origami-architected materials with variable stiffness
Communications Materials, 2021 Origami-inspired metamaterials are attractive for their programmable shape-shifting properties but are typically characterized by low structural rigidity.
Yasuhiro Miyazawa +7 more
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Science Progress, 2020 The variable stiffness joint is a kind of flexible actuator with variable stiffness characteristics suitable for physical human–robot interaction applications.
Jishu Guo
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