Results 191 to 200 of about 818,671 (331)

Study on the failure mechanism and improvement measures of bearings in the full-ocean-depth ultra-high-pressure seawater pump. [PDF]

Sci Rep
Chen Z, Hu X, Li L, Ye C, Wu D, Liu S, Ma Y, Gu L.   +7 more
europepmc   +1 more source

A Miniature Rotary Electrostatic Clutch for Assigning Multi‐Degrees of Freedom to Insect‐Scale Robots

Advanced Intelligent Systems, EarlyView.
Insect‐scale crawling robots can traverse confined environments; nevertheless, their functionalities are predominantly restricted to sensing because of challenges in integrating actuated degrees of freedom. Herein, a miniature rotary electrostatic clutch is presented by incorporating cutting patterns in the clutch layer.
Jongeun Lee, Amir Firouzeh, Seunghyun An, Pilwoo Lee, Kyu‐Jin Cho   +4 more
wiley   +1 more source

Investigation of the Effect of Contact Seal Geometry on Frictional Moment in Ball Bearings. [PDF]

Materials (Basel)
Zmarzły P, Wrzochal M, Rębosz-Kurdek A.   +2 more
europepmc   +1 more source

A Novel Contact‐Implicit Trajectory Optimization Framework for Quadruped Locomotion without Fixed Contact Sequences

Advanced Intelligent Systems, EarlyView.
Legged robots have advanced in environmental interaction through contact, but most works rely on fixed contact sequences. This work presents a new method based on an indirect optimization method for legged robots to automatically generate contact sequences for complex movements.
Yaowei Chen, Jie Zhang, Ming Lyu
wiley   +1 more source

Reducing friction in machine oil via cesium-hybridized graphene oxide quantum dot additives. [PDF]

Sci Rep
Gomaa I, Elsoudy S, Elmahgary MG, Abdel-Rehim AA.   +3 more
europepmc   +1 more source

Planning and Control Framework for a Quadruped Robot With Changeable Configuration

Advanced Intelligent Systems, EarlyView.
Multiconfiguration quadruped robots enhance adaptability by switching between mammal‐like and reptile‐like morphologies. This study presents a nonlinear constraint‐based motion planner integrated with a hierarchical whole‐body controller, enabling robust configuration switching and locomotion on complex terrains. Experiments on slopes, irregular bricks,
Guanglin Lu, Yifan Zhang, Teng Chen, Xuewen Rong, Guoteng Zhang, Yibin Li   +5 more
wiley   +1 more source

Effects of Corrugated Flat Rolling Process on the Bonding Interface, Microstructure, and Properties of Mg/Al Clad Plates. [PDF]

Materials (Basel)
Pan L, Zhu Z, Wang H, Chen Y, Li S, Liu C, Liu G.   +6 more
europepmc   +1 more source

A Review of Trans‐Dimensional Kirigami: From Compliant Mechanism to Multifunctional Robot

Advanced Intelligent Systems, EarlyView.
This review outlines recent advancements in the geometric design and mechanical properties of kirigami. The kirigami is classified into two categories from a compliant mechanism perspective, highlighting their applications in metamaterials and robotic systems. Finally, the future research directions, is explored focusing on the potential of integrating
Yang Yu, Jinyao Zhang, Dengchen Wang, Yanqi Yin, Yehui Wu, Ruiyu Bai, Jiaqiang Yao, Yupei Zhang, Jingwen Yin, Chao Tang, Alexey S. Fomin, Wenjie Sun, Chen Liu, Bo Li, Guimin Chen   +14 more
wiley   +1 more source

Study on surface microstructure of cylindrical roller bearings for open-pit coal mine conveyors. [PDF]

Sci Rep
Yang Z, Wang Z, Li Q, Hu G, Zhang H, Lu J, Yang F.   +6 more
europepmc   +1 more source

A Multimode Soft Robot Based on a Single Braided Tube

Advanced Intelligent Systems, EarlyView.
This study introduces a novel soft multimode robot based on a single braided tube directly formed and actuated by SMA wires with distinct initial configurations. By combining contraction, elongation, and bending deformations, the robot achieves straight crawling, turning, inchworm crawling, and rolling without additional actuators.
Zhenhao Jia, Jiayao Ma, Yan Chen
wiley   +1 more source