Results 71 to 80 of about 36,161 (264)

Acoustoelastic Theory and Mode Analysis of Bolted Structures Under Preload

Machines
Bolted connections are a common feature of connection in mechanical structures, employed to secure connected parts by tightening nuts and providing preload. The preload is susceptible to various factors leading to potential bolt loosening.
Lei Zhao, Rui Kuang, Guizhong Tian, Xiaona Shi, Li Sun   +4 more
doaj   +1 more source

A Scalable Double‐Sided Wet Etching Strategy for Large‐Area Mushroom‐Shaped Bionic Adhesives

Advanced Science, EarlyView.
This work presents a scalable manufacturing strategy for high‐performance, large‐area, mushroom‐shaped bio‐inspired adhesives. Using a double‐sided wet etching process, the complex 3D metal molds are fabricated rapidly and controllably. The resulting adhesive structures exhibit strong, stable adhesion under various conditions, including atmosphere and ...
Keju Ji, Xinran Xu, Jian Chen, Wenjie Chen, Xiaolei Zhu, Haixiang Ma, Xingyu Jiang, Changhong Linghu, Zhendong Dai   +8 more
wiley   +1 more source

Sea Cucumber‐Inspired Double‐Network Biopolymer Hydrogels for Programmable Soft Machines

Advanced Science, EarlyView.
Inspired by the mutable dermis of sea cucumbers, the collagen‐alginate double‐network elastomeric (CoDE) hydrogel achieves programmable, recoverable, and functional mechanical behavior. The CoDE hydrogel mimics the mutable stiffness of the sea cucumber dermis through a densified collagen cryogel scaffold that is secondarily reinforced by a dissipative,
Luo Yan, He Xiao, Purohit Prashant K., Vining Kyle H.   +3 more
wiley   +1 more source

Vertically Weft‐Knitted Smart Kinesiotapes for High‐Sensitivity, Low‐Drift Textile Strain Sensing in Close‐to‐Body Motion Monitoring

Advanced Electronic Materials, EarlyView.
Textile architecture is shown to govern the electromechanical response of embroidered and weft‐knitted strain sensors. Sensor geometry, sensing‐path length, and yarn orientation strongly affect resistance and sensing behavior. Vertical weft‐knitted structures provide the most distinct cyclic response and high sensitivity, highlighting their potential ...
Philippa R. C. Kopelmann, Nadja Schenk, Carola Böhmer, Mareen Warncke, Hans Winger, Hung Le Xuan, Iris Kruppke, Ercan Altinsoy, Chokri Cherif   +8 more
wiley   +1 more source

A Multimodal Intelligent System for Human Digital Twin Simulation with Continuous Kinematic Data Tracking, Biometric Prognosis, and Cognitive State Feedback in Industrial Environments

Advanced Intelligent Discovery, EarlyView.
This article implements a unified human digital twin framework that integrates cutting edge actuation, sensing, simulation, and bidirectional feedback capability. The approach includes integrating multimodal sensing, AI, and biomechanical simulation into one compact system.
Tajbeed Ahmed Chowdhury, Sebastian Gratz‐Kelly, Eric Wagner, Paul Motzki, Martina Lehser   +4 more
wiley   +1 more source

Development and construction technology of high pre-tightening force stress uniform anchor cable

Meitan kexue jishu
As one of the key parameters of roadway support, preload plays a decisive role in active support, and studies at home and abroad have shown that improving preload can effectively control roadway deformation and reduce the occurrence of roofing accidents.
Junling HOU, Tongli HUANG, Jiegao LIU, Chuiyu LI, Lin YUAN, Shihui LI, Xiuliang ZHU, Anying YUAN   +7 more
doaj   +1 more source

A Two‐Stage Characterization Pipeline and Open‐Source Framework for Reproducible Tactile Sensing

Advanced Intelligent Systems, EarlyView.
The same soft tactile sensor returns different numbers when embodied in different robots. This is an Embodiment Gap that no shared framework currently captures transparently. A two‐stage characterization pipeline, paired with a FAIR open‐source digital datasheet, decouples intrinsic sensor behavior from embodiment effects and condenses cross‐laboratory
Matteo Lo Preti, Weng Buxiu, Petr Trunin, Muhammad Sunny Nazeer, Lucia Beccai, Perla Maiolino, Cecilia Laschi   +6 more
wiley   +1 more source

Characterization and Selection of Contractile Actuators for Soft Robotics Operating in the Quasistatic Regime

Advanced Intelligent Systems, EarlyView.
We developed methods to characterize soft contractile actuators using force–displacement measurements in the passive state and the total force in the active state and define the operational range of thermal, electrothermal, and pneumatic muscles. A graphical method enables the selection of an actuator based on the required mechanical force–displacement
Qiong Wang, Liuyang Cheng, Jeongmin Kim, Samuel Tsai, Devin Roach, Sameh Tawfick   +5 more
wiley   +1 more source

Miniaturized Multifunctional Valves for Intelligent Pneumatic Systems in Soft Robotics

Advanced Intelligent Systems, EarlyView.
Miniaturized multifunctional pneumatic valves in normally closed (NC) and normally open (NO) configurations enable reconfigurable and programmable fluidic logic—including AND, OR, NAND, and NOR gates—with/without physical replumbing. These valves integrate sensing, logic, and actuation within a unified architecture, demonstrated through an electronics ...
J. Xu, X. Z. Niu, J. Andersson, D./G. Broo, K. Hjort   +4 more
wiley   +1 more source

Interbody Wire for Reconfigurable Robots: Bridging Integrated Morphological Reconfiguration and Distributed Wire‐Mediated Cooperation

Advanced Intelligent Systems, EarlyView.
TwinX shows how a single interbody wire connecting two robots can support both integrated morphological reconfiguration and distributed wire‐mediated cooperation. When the robots dock, they reconfigure into different forms for locomotion and manipulation.
Shintaro Inoue, Kento Kawaharazuka, Keita Yoneda, Sota Yuzaki, Temma Suzuki, Kei Okada   +5 more
wiley   +1 more source