Results 121 to 130 of about 5,207 (292)

Micropillar‐Engineered Hybrid Adhesive Patch for Surface‐Conformable and Directional Adhesion

Advanced Materials Technologies, EarlyView.
This work presents a surface‐conformable hybrid adhesive integrating height‐optimized hexagonal micropillars with open‐rectangular cuts. The micropillars enhance rough‐surface contact and microscale crack arrest, while the cuts guide and reverse interfacial cracks for strong and directional adhesion. The multiscale architecture achieves robust pull‐off
Seongjin Park, Dong Kwan Kang, Haejin Bae, Ho‐Sup Jung, Hoon Eui Jeong   +4 more
wiley   +1 more source

A variable stiffness PZT cellular actuator with tunable resonance for cyclic motion tasks

, 2009
A simple and efficient approach for varying the inherent stiffness and impedance of a muscle-like actuator is presented. The basic architecture of PZT cellular actuators has already achieved a large effective strain (10-20%).
Secord, Thomas William, T.W. Secord, H.H. Asada, Asada, Harry   +3 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Design of Magnetic Variable stiffness actuator for legged hopper

, 2014
In rough and highly unstructured terrain, legged locomotion exhibits remarkable capabilities when compared to wheeled systems. The mobility of the wheeled systems are restricted to continuous path with small obstacle, legged locomotion requires only few ...
Raghuraman, R. (author)
core  

Position and Stiffness Control of One DoF Revolute Joint Using a Biphasic Media Variable Stiffness Actuator

, 2019
At this time, several industrial processes and service tasks need safe interactions between humans and robots. This safety can be achieved using compliance design and control of mechanisms. This paper presents a compliant revolute joint mechanism using a
Giorgio Cannata, Molfino R., Caligiuri A., Rezia Molfino, Lugo J. H., Jesus Hiram Lugo, Zoppi M., Alessio Caligiuri, Cannata G., Matteo Zoppi   +9 more
core   +1 more source

Material Selection and Geometric Design for Few‐filament Shape Memory Polymer Yarns for Force Generation

Advanced Materials Technologies, EarlyView.
A custom shape memory polymer material selection process relates quantitative application criteria (e.g., compression garment yarns) to material characterization information. The selected materials are manufactured into yarn geometries, which expand the design space by creating structural stress‐strain profiles beyond the nominal material stress‐strain
Michaela Andrews, Susan Mantell, Julianna Abel   +2 more
wiley   +1 more source

Design and Analysis of a 2-DOF Actuator with Variable Stiffness Based on Leaf Springs

, 2022
Variable Stiffness Actuator (VSA) is the core mechanism to achieve physical human–robot interaction, which is an inevitable development trend in robotic.
Yu Y(于艺), Liu YW(刘玉旺), Wang DQ(王冬琦), Chen P(陈鹏), Yang SK(杨尚奎)   +4 more
core  

Liquid Metal‐Based Stretchable Strain Sensor for Fruit Growth Monitoring

Advanced Materials Technologies, EarlyView.
Schematic overview of the fruit growth sensor development workflow, including sensor fabrication by injection molding, electromechanical and environmental characterization, mechanical stability testing, electronic readout integration, and outdoor field validation for monitoring of fruit growth under practical orchard conditions.
Asad Ullah, Lennert Purnal, Maximilian Krack, Sander Vijgen, Thijs Vandenryt, Dieter Reenaers, Ronald Thoelen, Wim Deferme   +7 more
wiley   +1 more source

Design and Control for Ankle Rehabilitation Robot Enhancing Intrinsic Robotic Compliance

IEEE Access
Intrinsic robotic compliance is crucial for enhancing the safety of physical human-robot interaction. In this study, we introduce the SUT-ARRVSA-1, an innovative ankle rehabilitation robot that utilizes a variable-stiffness actuator (VSA).
Jie Zhou, Yao Sun, Jia Qi Wang, Yu Long Zhang, Yi Cong Gao, Zhe Wei   +5 more
doaj   +1 more source

3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics

Advanced Materials Technologies, EarlyView.
A 3D‐printable porous dopamine‐polyurethane acrylate elastomer results in conductive, stretchable, and compressible structures that can be metallized in situ through catechol‐mediated silver reduction. The resulting material function as both compliant soft robot with a and strain sensors without complex assemblies, enabling fully 3D‐printed soft ...
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi   +3 more
wiley   +1 more source