Results 61 to 70 of about 2,912,492 (277)

PROGRESSIVE ASSEMBLY TECHNOLOGY OF RADIAL ANGULAR-CONTACT BALL BEARINGS WITH INNER-COOLED RACE

Вестник Донского государственного технического университета, 2018
The experimental data in the field of the radial angular-contact ball bearings are resulted. The cold assembly technology for the radial angular-contact ball bearings, in which the inner race cooling temperature is determined with its aftercontraction to
Albert V. Korolev, Vladimir V. Bolkunov, Artem G. Miroshkin, Olga P. Reshetnikova   +3 more
doaj  

Stiffness characteristics and experimental study of angular contact ball bearings considering the influence of rotational speed

Advances in Mechanical Engineering
The angular contact ball bearings are widely used in various high-speed and precision rotating equipment because of support performance. The contact load of the inner and outer rings is changed because of the centrifugal force of rolling elements caused ...
Runlin Chen, Fan Xu, Gengzhou Liu, Jiakai Li, Shaodong Zhao, Xingyu Fan, Yanchao Zhang, Saisai Lv   +7 more
doaj   +1 more source

High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy

Advanced Science, EarlyView.
A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Shuai Ding, Hua Zhai, Hao Gong, Xiao Long, Yuanzhuo Tian, Zhanyong Hong, Long Zheng, Xucong Wang, Xiangyu Chen, Zhong Lin Wang   +9 more
wiley   +1 more source

Additive Manufacturing of High‐Performance Polymers for Extreme Environments

Advanced Science, EarlyView.
Additive manufacturing of high‐performance polymers for extreme environments is critically reviewed through an integrated chemistry‐processing‐structure‐property‐qualification framework. The review compares fused filament fabrication, selective laser sintering, and direct ink writing, linking rheology and thermal history to crystallization, defect ...
Md Tofazzal Hossain, Mohammed Intishar Nur, Md Shajedul Hoque Thakur, Indranil Dey, Md Mesbahul Maruf, Md Jahid Hasan, Suryasarathi Bose, Muhammad M. Rahman   +7 more
wiley   +1 more source

Beyond‐Classical Ferroelectric Metamaterials: 3D‐Printed Planar Lattices With Programmable Electro–Thermo–Mechanical Coupling

Advanced Science, EarlyView.
Planar ferroelectric lattices with rationally‐tailored topology and polarization achieve programmable piezoelectric and pyroelectric properties. Analytical modeling, homogenization, and experiments collectively demonstrate enhanced and tunable longitudinal, transverse, and shear piezoelectric responses, together with substantially improved ...
Jiahao Shi, Kang Ju, Haoyu Chen, Valerie Orsat, Agus P. Sasmito, Ali Ahmadi, Abdolhamid Akbarzadeh   +6 more
wiley   +1 more source

Study on Relationship between Contact Stress Distribution Characteristic and Fatigue Spalling of Angular Contact Ball Bearing at High Speed

Jixie chuandong, 2021
Fatigue spalling is one of the main failure forms of bearing， and the change of contact stress between rolling body and raceway is an important factor causing fatigue spalling of bearing.
Chao Wan, Kang Zhang, Zeyu Tian, Xiangmin Chen, Luping Li   +4 more
doaj  

Wear performance analysis of high-speed instrument rotor bearings

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
For inner ring or outer ring rotation of high-speed rotor ball bearings, a dynamic wear simulation model of angular contact ball bearings was built up.
Tao ZHANG, Xiaoyang CHEN, Jiaming GU, Jie YU   +3 more
doaj   +1 more source

The Effect of The Luburicating Condition on The Ball Motion of An Angular Contact Ball Bearing [PDF]

, 1984
Ball bearing, which necessarily must bear a high load on a narrow surface area, expose consequently themselves to a high contact pressure. Design engineers, therefore, have to have through knowledge of the effective factors by which the endurance life is
中嶋, 明, 森高, 秀四郎, 浦, 晟
core  

Vine‐Inspired Soft Robotics: Materials, Actuations, and Emerging Applications

Advanced Science, EarlyView.
Vine‐inspired robots grow from the tip, enabling navigation through confined spaces with minimal disturbance. This Review summarizes material and actuation strategies for vine‐inspired growth, key functions including steering, retraction, attachment, branching, and variable stiffness, and emerging applications spanning medical intervention, confined ...
Jiahao Wu, Xingyun Liu, Fangzhou Wang, Huili Ren, Chaojun Zhang, Ziyu Ren, Zunqi Liu, Jing Li   +7 more
wiley   +1 more source

Spatiotemporal Regulation of Hierarchical Assembly of Hydroxyapatite for Enamel Remineralization

Advanced Science, EarlyView.
Biomimetic repair exhibits unique advantages for enamel regeneration compared with conventional clinical treatments. An enzymatic mineralization system (EMS) is developed, where the resulting HAP nanorods hierarchically assemble into a highly ordered structure on the enamel surface through the spatiotemporal modulation of interfacial energies of ...
Zhenhang Tang, Zhisen Zhang, Yuanyu Zhou, Wenzhi Wu, Congrui Zhao, Chang Liu, Tong Shi, Wenjing Jin, Zhaoming Liu, Weifeng Fang, Qingyun Lin, Yi He, Zhijian Xie, Ruikang Tang, Changyu Shao, Zhuo Chen   +15 more
wiley   +1 more source