Results 31 to 40 of about 780 (198)

Research on Flexible Joint Stiffness Test and Trajectory Planning of Space Manipulator

Advances in Mechanical Engineering, 2013
Both Natural Coordinate Formulation describing rigid bodies and Absolute Nodal Coordinate Formulation describing flexible bodies are used to model a flexible manipulator with flexible joint and flexible link.
Yongtai Yang, Jili Rong, Jian Li, Ling Tang   +3 more
doaj   +1 more source

Bio‐Inspired Bidirectional Winding Origami With Programmable Modular Reconfigurability and Scalability

Advanced Science, EarlyView.
A bio‐inspired bidirectional‐winding origami platform enables scalable and programmable deployable structures. Double axial folding inspired by earwig hindwings and Flasher‐based hybridization create modular multilayer architectures with diverse attainable winding angles under fixed boundary conditions.
Wenyao Zhang, Chunlong Wang, Mingli Liu, Chuang Shi, Hongwei Guo, Rongqiang Liu   +5 more
wiley   +1 more source

In Situ Profiling of Nanoscale Strains Uncovers Mechano‐Architectural Predictors of Aging and Osteoarthritis Emergence

Advanced Science, EarlyView.
In situ mechanical loading of osteoarthritis‐prone murine knee joints reveals that spatial alterations in subchondral plate microarchitecture precede cartilage loss and promote a shift from coordinated epiphyseal strain dissipation in healthy joints to focal subchondral strain concentration in osteoarthritis‐prone joints.
Aikta Sharma, Lucinda A. E. Evans, Lucie E. Bourne, Jishizhan Chen, Alissa L. Parmenter, Joseph Brunet, Kamel Madi, Sebastian Marussi, Andrew A. Pitsillides, Peter D. Lee, Katherine A. Staines   +10 more
wiley   +1 more source

Trajectory planning with residual vibration suppression for space manipulator based on particle swarm optimization algorithm

Advances in Mechanical Engineering, 2017
Space manipulator suffers from vibration problems mainly due to the flexibility of joints and links in a microgravity environment. This article presents a new optimization method of trajectory planning with minimum residual vibration for space ...
Pengfei Xin, Jili Rong, Yongtai Yang, Dalin Xiang, Yang Xiang   +4 more
doaj   +1 more source

Dynamic characteristics analysis of high speed rotating thin film antenna

Results in Physics, 2022
The thin-film antenna is in a state of high-speed rotation in space, and studying the influence of its structure size on its vibration characteristics can avoid the occurrence of resonance.
Yao Feng, Jimei Wu, Mingyue Shao
doaj   +1 more source

Endothelial miR‐15a/16‐1 Regulation of SYNE1 Mediates Structural and Functional Recovery after Traumatic Brain Injury

Advanced Science, EarlyView.
Endothelial miR‐15a/16‐1 deletion promotes long‐term recovery after traumatic brain injury by restoring SYNE1 expression. Enhanced endothelial SYNE1 preserves vascular integrity, protects white and gray matter, and improves neurological function. The endothelial miR‐15a/16‐1–SYNE1 axis emerges as a key regulator of neurovascular repair and a potential ...
Shun Li, Na Qiu, Chao Zhou, Andrew Ni, Ping Sun, Jia‐Jun Liu, Xin‐Lei Huang, Tian‐Qing Xiong, Yu‐Chi Zhang, Hai‐Zhou Liu, Xiao‐Tao Xu, Rui Wang, Shi‐Qing Zhang, Yu‐Xin Zhang, Silvia Liu, C. Edward Dixon, Jun Chen, Ke‐Jie Yin   +17 more
wiley   +1 more source

Comparison of Detailed Belt - Cylinder Interaction Model with Classical Belt Friction Formula

Journal of Mechanical Engineering, 2019
This paper deals with a comparison of the classical belt friction formula, also called Euler-Eytelwein equation, with a detailed belt-cylinder interaction model. The belt friction is a typical pedagogical problem where the usage of equilibrium conditions
Bulín Radek, Hajžman Michal
doaj   +1 more source

Reconfigurable Design and Optimization‐Based Control of an Integrated Leg‐Arm Robot for Space Applications With an Underactuated Body

Advanced Intelligent Systems, EarlyView.
A quadrupedal integrated leg‐arm robot with an underactuated reconfigurable body is developed. By using a Sarrus mechanism as the body, the robot enables reconfiguration through its supporting limbs, achieving mode switching without additional actuators.
Xinghan Zhuang, Kun Xu, Shutao Wu, Haoyuan Liu, Bochao Song, Jiawei Chen, Peijin Zi, Tao Zhang, Xilun Ding   +8 more
wiley   +1 more source

Dynamic modeling and analysis of the looped space tether transportation system based on ANCF

International Journal of Mechanical System Dynamics, 2022
A high‐fidelity multibody‐system dynamic model of the looped tether transportation system (L‐TTS) is proposed in this study to study its large deformation as well as large overall motion.
Jie Yang, Qingtao Wang, Zhiyong Zhang, Zhendong Liu, Shidong Xu, Gangqiang Li   +5 more
doaj   +1 more source

Numerical and Experimental Evaluation of a Simplified Lateral Spring Formulation for Rocking Structures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Rocking podium isolation systems have gained significant research interest as a method of limiting seismic demands on superstructures and eliminating residual post‐earthquake drifts through self‐centring behaviour. However, while numerous models of varying complexity, including analytical, phenomenological, and physical formulations, have been
Marawan Zaki, Chiyun Zhong, Constantin Christopoulos   +2 more
wiley   +1 more source