Results 161 to 170 of about 2,775,395 (241)

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

Research on Shape Memory Properties of PETG Based on 4D-Printed Negative Poisson's Ratio Structures. [PDF]

Polymers (Basel)
Liu Z, Liu S, Chen B.
europepmc   +1 more source

3D Zero Poisson's Ratio Honeycomb Structure for Morphing Wing Applications. [PDF]

Biomimetics (Basel), 2022
Gong X, Ren C, Sun J, Zhang P, Du L, Xie F.   +5 more
europepmc   +1 more source

Bioinspired Soft‐Skeleton Robotics With Cooperative Shape Transformation and Stiffness Adaptation

Advanced Robotics Research, EarlyView.
A bioinspired soft‐skeleton robot that integrates variable‐stiffness chain skeletons into a soft textile skin is developed. The chain skeletons are highly flexible initially but can stiffen upon pneumatic actuation, enabling large deformation and enhanced load‐bearing capacity.
Mengyuan Niu, Xiaorui Hu, Chenmin Yuan, Haoyun Li, Xuzhong Su, Fengxin Sun   +5 more
wiley   +1 more source

Study on a Chiral Structure with Tunable Poisson's Ratio. [PDF]

Materials (Basel), 2021
Fu Y, Yu T, Wang X.
europepmc   +1 more source

Design and Modeling of a High‐Displacement, Skin‐Integrated Flexible Electromagnetic Actuator for Haptic Interfaces in Virtual Reality

Advanced Robotics Research, EarlyView.
A flexible, skin‐integrated electromagnetic actuator is developed for wearable virtual/augmented reality (VR/AR) haptic systems. A tunable design model enables control over displacement and resonance frequency. The system is validated through a custom VR application with a 6 × 4 actuator array, demonstrating real‐time, spatially targeted tactile ...
Naji Tarabay, Alexandra Zhang Jiang, Ziteng Liu, Rachel Villamor, Derek Cha, Ananya Renuka Balakrishna, Tianshu Liu, Priyanshu Agarwal, Rainer Dömer, Camilo Velez   +9 more
wiley   +1 more source

Novel design of tubular metamaterials with sign-switchable Poisson's ratio and tunable mechanical properties for intestinal stents. [PDF]

Front Bioeng Biotechnol
Lyu Y, Siniauskaya V, Jiang J, Wang H, Meng L, Bosiakov S, Abdul Kadir MR.   +6 more
europepmc   +1 more source

A Unit Compound Structure Design: Poisson's Ratio Is Autonomously Adjustable from Negative to Positive. [PDF]

Materials (Basel), 2023
Zhao G, Fu T.
europepmc   +1 more source

Influence of Poisson's ratio on head waves from thin layers

, 1988
Seismic refraction interpretation uses the arrival time of the head wave to determine the apparent velocity, depth and dip of the refracting layer. Physical model studies have shown that the arrival time and other characteristics of the head wave vary ...
Maxwell, Geraldine H.
core  

Introducing PNEUMA: A Hybrid Soft Pneumatic Fabric Bidirectional Actuation Module for Wearable Robotics

Advanced Robotics Research, EarlyView.
This study presents a soft pneumatic fabric bidirectional actuation module (PNEUMA) capable of generating high torque in both bending directions within a single integrated architecture. PNEUMA achieves up to 50 Nm with reduced inflation volume and a lightweight design.
Odysseas Simatos, Nikolaos Charalampous, Panagiotis Polygerinos   +2 more
wiley   +1 more source