Results 11 to 20 of about 112,916 (259)
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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Adaptive Variable Stiffness with strategically arranged materials
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 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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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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Analysis of Variable-Stiffness Characteristics of Variable-Stiffness Elastic Actuator
, 2023 In order to improve the stiffness of the flexible robot,this paper proposes a variable-stiffness elastic actuator to improve the rigidity of flexible robots. The actuator integrates the working principles of a pneumatic drive, wedge structure, and particle blockage. the tensile stiffness of the actuator is nonlinearly negatively correlated with the air
He Peng, Xia Wang, Dexu Geng, Wenzhi Xu
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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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Amputee perception of prosthetic ankle stiffness during locomotion
Journal of NeuroEngineering and Rehabilitation, 2018 Background Prosthetic feet are spring-like, and their stiffness critically affects the wearer’s stability, comfort, and energetic cost of walking. Despite the importance of stiffness in ambulation, the prescription process often entails testing a limited
Max K. Shepherd +3 more
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A Variable Stiffness Actuator Based on Leaf Springs: Design, Model and Analysis
Actuators, 2022 In order to adapt to complex and changeable mechanical conditions and make the deformable mechanisms perform well statically and dynamically, variable stiffness joints have been studied extensively.
Yifan Lu +5 more
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