Results 111 to 120 of about 8,221,958 (294)

Dual‐Mode Gripper With Suction and Shape‐Adaptive Freezing Grasps

Advanced Robotics Research, EarlyView.
This study presents a dual‐mode robotic gripper that combines vacuum suction with a shape‐adaptive freezing grasp. The freezing mode uses a compliant rubber membrane, a sprayed water layer, and dry‐ice powder to generate ice‐mediated adhesion while conforming to complex geometries.
Takuma Yanagisawa, Toshihiro Nishimura, Yosuke Suzuki, Tokuo Tsuji, Tetsuyou Watanabe   +4 more
wiley   +1 more source

Origami‐Inspired Morphing Fuselage for Agile Fixed‐Wing Flight

Advanced Robotics Research, EarlyView.
Conventional aircraft steer with rigid control surfaces. SoAR instead replaces the fuselage itself with a cable‐driven origami continuum body that bends in 3D and compresses on demand. Whole‐fuselage morphing steers fixed‐wing flight: achieving sharp, near‐zero‐radius turns and rapid braking without ailerons, rudder, or elevator, while the same ...
Abudula Aihaitijiang, Cagdas D. Onal
wiley   +1 more source

Mechanical Performance Investigation of the Effective Longitudinal Torsional Stiffness Ratio in Rectangular Shield Tunnels Under Combined Loadings

Buildings
Rectangular shield tunnels demonstrate significant advantages in underground space utilization due to their optimal cross-section efficiency and enhanced spatial functionality.
Jun Liu, Fanghui Pan, Qingyan Tan, Xiaozhou Zhou, Peinan Li, Mei Yin, Xiugui Lin, Zhigang Li   +7 more
doaj   +1 more source

In Situ Stress‐Dispersing Hydrogel Millispheres via Load Redistribution to Restore Nucleus Pulposus Metabolic Homeostasis

Advanced Science, EarlyView.
Local stress concentration disrupts metabolic homeostasis and induces inflammation in the nucleus pulposus (NP), thereby accelerating intervertebral disc degeneration (IDD). A biomimetic HA/ChS hydrogel millimeter sphere (ChS@HM) is developed to enable synergistic stress dispersion and sustained hydration lubrication.
Ang Li, Hui Yuan, Honglei Xiao, Xiaodong Liu, Wenguo Cui   +4 more
wiley   +1 more source

Influence of preparation parameters on the torsion performance and failure mechanisms of CFRP tubes

e-Polymers
Carbon fiber reinforced polymers (CFRPs) are promising materials for tubular structures in wind energy systems. Although their torsional behavior has been widely studied, the coupled influence of diameter and ply orientation under different loading rates
Wu Peng, Yang Hailong, Cheng Hongsen, Wu Qiulan, Xie Chenlin, Lei Zuxiang, Wan Yun   +6 more
doaj   +1 more source

Physics‐Informed Neural Network‐Enabled Forward Prediction and Inverse Design of Ring Origami

Advanced Science, EarlyView.
This work presents a KRT‐PINN framework that integrates Kirchhoff rod theory with physics‐informed neural networks for the forward prediction and inverse design of ring origami consisting of closed‐loop rods. The framework predicts stable states of segmented rings with prescribed natural‐curvature profiles and determines the natural‐curvature profiles ...
Luyuan Ning, Lu Lu, Sophie Leanza, Ruike Renee Zhao   +3 more
wiley   +1 more source

Simulation Study on Compound Percussion Frequency Matching Characteristics

Shiyou jixie, 2019
There are many researches on the traditional axial impact rock breaking and torsional impact rock breaking mechanism. But researches on the rock breaking mechanism of compound percussion drilling are few and are still in infancy state.
Li Yumei, Zhang Tao, Su Zhong, Yu Liwei, Liu Jianming   +4 more
doaj  

Experimental and analytical investigations on the torsional behaviour of glass fibre - reinforced concretepontoon decks [PDF]

This comprehensive research delves into the use of glass fibre - reinforced polymer (GFRP) bars as internal reinforcements in concrete pontoon decks, particularly in marine environments, to counter the corrosion issues of traditional steel reinforcements.
Yang, Xian
core   +1 more source

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

Advanced Science, EarlyView.
A geometry‐consistent DDG framework captures compliant origami deformation from rigid‐like folding to soft panel bending. By tuning crease and panel stiffness, bistable snap‐through responses transform into smooth monostable deformation, enabling programmable stability and robot‐scale locomotion.
Bohan Zhang, Bo Wang, Huajiang Ouyang, Zhigang Wu, Haohao Bi, Jiawei Xu, Mingchao Liu, Weicheng Huang   +7 more
wiley   +1 more source

Dispersion behavior of torsional guided waves in a small diameter steel gas pipe

, 2013
Condition monitoring of gas pipes has been an important issue for gas companies. Failure to accurately identify condition of gas pipes result in numerous problems. Also, producing a condition monitoring system for buried pipelines is challenging.
Humphrey, V., Zaghari, B., Moshrefi-Torbati, M.   +2 more
core   +1 more source