Results 81 to 90 of about 660,511 (329)
Advanced Science, EarlyView.An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang +6 more
wiley +1 more source
Advanced Science, EarlyView.A fully soft, self‐reconfigurable gripper inspired by rapeseed flowers is monolithically 3D‐printed and electronics‐free, switching between diagonal and parallel finger arrangements. Establishing a self‐reconfigurable grasping paradigm, the gripper enables diverse manipulation tasks, including rotating bulbs, picking fruits, grasping cross‐scale ...
Qiping Xu +8 more
wiley +1 more source
Detection and Diagnosis of Rolling Element Bearing Faults Using Time Encoded Signal Processing and Recognition [PDF]
This thesis presents a systematic study of using TESPAR (Time Encoded Signal Processing and Recognition), which presently is in use as an effective tool for speech recognition and shows great advantages in computational demands and accuracy, to develop a
Abdusslam, Shukri Ali
core
Roller bearing geometry design [PDF]
, 1976 A theory of kinematic stabilization of rolling cylinders is extended and applied to the design of cylindrical roller bearings. The kinematic stabilization mechanism puts a reverse skew into the rolling elements by changing the roller taper.
Pinkston, B. H. W., Savage, M.
core +1 more source
Advanced Science, EarlyView.This work presents a magnetic‐bearing acoustic resonator that overcomes the thermodynamics limit of sound absorption. By introducing tunable negative stiffness, it achieves broadband low‐frequency absorption within a compact cavity, far exceeding the performance achievable by classic mass‐tuned designs.
Ying Hu +5 more
wiley +1 more source
Advanced Science, EarlyView.Metal‐anode batteries using Li, Na, Mg, and Ca offer exceptionally high energy density, but dendrites, unstable interphases, cracking, and pore formation hinder durability and safety. This review shows how careful electrolyte and interphase design can stabilize these reactive metals.
Jian Pan +3 more
wiley +1 more source
Jixie chuandong, 2021 The stiffness characteristics of cylindrical roller bearings will have great impact on the dynamic performance of machine tools. Based on the analysis for the double-row cylindrical roller bearing， considering the influence of the lubricant oil film on ...
Hao Yu +3 more
doaj
Influence of Geometric Error of Rollers on Rotational Accuracy of Cylindrical Roller Bearings
Xibei Gongye Daxue Xuebao, 2019 As the rotation of roller bearings is carried out under geometrical constraint of the inner ring, outer ring and multiple rollers, the motion error of the bearing should also be resulted from geometric errors of bearing parts. Therefore, it is crucial to
doaj +1 more source
Surface and Interfacial Engineering toward Durable Mechanically Coupled Flexible Electronics
Advanced Science, EarlyView.This Review highlights how surface and interfacial engineering governs the reliability, durability, and functional stability of mechanically coupled flexible electronics. By integrating fundamental interfacial theory, failure mechanisms, multiscale engineering strategies, and representative applications, it provides a design‐oriented framework for ...
Qian Wang, Fangfang Dai, Wei Wu
wiley +1 more source
Application Development of Cylindrical Roller Bearing for High-speed EMUs
机车电传动, 2018 Aiming at the problems of tapered roller bearings applied in high-speed EMUs in our country, such as bearing grease leakage, abnormal temperature rise, and stripping, using forward design concept, combined the technical characteristics of cylindrical ...
LI Guodong, ZHAO Wenxue, HAN Qingli
doaj