Results 131 to 140 of about 51,949 (274)

Sizing criterial for traction drives [PDF]

, 1983
A simplified traction drive fatigue analysis which was derived from the Lundberg-Palmgren theory is measured and the effects of rotational speed, multiplicity of contacts, and variation in the available traction coefficient on traction drive system life,
Coy, J. J., Loewenthal, S. H., Rohn, D. A.   +2 more
core   +1 more source

Autonomous Locomotion of Tensegrity Structure on Low‐Temperature Surfaces

Advanced Robotics Research, EarlyView.
A low‐temperature responsive tensegrity structure (LRTS) is constructed by integrating low‐responsive temperature liquid crystal elastomer (LCE) cables, nonresponsive cables, and stiff rods. The low phase transition temperature of LCE is achieved by introducing a new liquid crystal mesogen.
Changyue Liu, Kai Li, Tianyu Li, Zixuan Wang, Jiping Yang, Zhijian Wang   +5 more
wiley   +1 more source

Calculation Method and Experimental Study on Circumferential Total Clearance of Cageless Bearings

Lubricants
This paper addresses the issue of the frequent collision and grinding of rolling elements in cageless bearings during operation by proposing a method to calculate the total circumferential clearance.
Xiaofeng Zhao, Shuidian Xu, Tao Xu, Qianqian Xu, Kai Huang   +4 more
doaj   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

Advanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds, Donan Satria Yudha, Parvez Alam   +2 more
wiley   +1 more source

Two-dimensional Gaussian processes applied to the determination of contact between lubricated rolling surfaces [PDF]

The effectiveness of a lubricant film preventing metallic contact between two rolling surfaces (such as in ball bearings) as a function of surface roughness parameters was investigated.
Sidik, S. M.
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

CAPACITY RATING OF INTEGRATED CONE ROLLING-CONTACT BEARINGS OF 2K-V PLANETARY PIN-TOOTH GEAR

Advanced Engineering Research, 2011
The estimation method for the basic dynamic radial bearing capacity, the dynamic equivalent radial load and the specified endurance of the integrated cone rolling-contact bearings of the 2K-V planetary pin-tooth gear with the off-centroid internal pin ...
Sergey O. Kireyev, Boris N. Vasilyev
doaj  

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Circular RNA PTPN4 Contributes to Blood‐Brain Barrier Disruption during Early Epileptogenesis

Advanced Science, EarlyView.
Epileptic condition induces CircPTPN4 upregulation, which promotes ECE‐1 expression through competitive sequestration of miR‐145a‐5p. The elevated ECE‐1 catalyzes the ET‐1 production, leading to p38/MAPK pathway activation and subsequent downregulation of tight junction protein expression. This cascade results in increased BBB permeability and enhanced
Jiurong Yang, Yang Hu, Feiyu Wang, Xintao Peng, Honggang Qi, Yuanyuan Yao, Canyu Zhang, Lijie Zhou, Xuemei Liang, Kang Xu, Cong Zhang, Aifeng Zhang, Chen Chen, Yu Zeng, Chenchen Zhang, Guangming Gan, Xinjian Zhu   +16 more
wiley   +1 more source

Tribology: The Story of Lubrication and Wear [PDF]

Topics addressed include: lubrication and design of high speed rolling element bearings, high speed gears, and traction ...
Buckley, Donald H., Jones, William R., Jr., Loewenthal, Stuart H., Sliney, Harold E., Townsend, Dennis P., Zaretsky, Erwin V.   +5 more
core   +1 more source