Results 41 to 50 of about 10,169,708 (230)

Fiber‐Format Flexible Linear Electrostatic Motors

Advanced Materials, EarlyView.
A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley   +1 more source

Analysis of Oil–Air Two-Phase Flow Distribution and Oil Return Characteristics in Under-Race Lubricated Angular Contact Ball Bearings

Lubricants
Under-race lubrication is an effective oil supply method for high-speed angular contact ball bearings, but the relationship between internal oil–air two-phase flow distribution and end oil return behavior remains insufficiently understood. In this study,
Jianfeng Zhong, Ruiqi Tang, Juan Liu, Caihua Yang, Yu Dai   +4 more
doaj   +1 more source

Ionic Liquid (IL) Compatibilization of Macropore‐Infused Nanocomposite Emulsion Thermosets (MINETs) for Structural Ion Transport

Advanced Materials Interfaces, EarlyView.
Macropore‐infused nanocomposite emulsion thermosets (MINETs) offer tunable multifunctionality due to their incorporation of structural resin, functional nanoparticles, and working fluid stabilized by surfactant. Here we show that if ionic liquid working fluids are introduced, structural capacitive (conductive particles) or separator (insulating ...
Bryan Llumiquinga, Iris You, Nare Cho, Madhuri Deb, Jordan C. Pierce, Kevin M. Miller, Jonathan P. Singer   +6 more
wiley   +1 more source

Elasto-Hydrodynamic Lubrication Effect in Thrust-Slide Bearings of Scroll Compressors [PDF]

, 2012
This paper presents the concept of the Elasto-Hydrodynamic Lubrication (EHL) effect for the thrust slide-bearings in scroll compressors, which accounts for the superior lubrication characteristics of these bearings.
Anami, Keiko, Tsuji, Takuma, Ishii, Noriaki, Oku, Tatsuya, Morimoto, Takashi   +4 more
core  

Reducing Interfacial Separation Force in High‐Speed Constrained‐Surface Projection Stereolithography Using a Dual‐Modulus Silicone Release Film

Advanced Materials Interfaces, EarlyView.
A dual‐modulus silicone release film creates distributed stress concentrations at high‐/low‐modulus boundaries, triggering multi‐site crack initiation and rapid interfacial detachment. The architecture lowers the peak separation force by 97.6%, shortens detachment time, and enables stable continuous projection stereolithography at 720 mm h−1, offering ...
Xiaogang Li, Xiaoqing Kang, Hong Xiao, Yugang Duan   +3 more
wiley   +1 more source

Rubber‐Glass‐Crystal Triple Phase Transition in Polyacrylamide Hydrogels and Environment‐Adaptive Shape Memory Effect

Advanced Materials Interfaces, EarlyView.
By analyzing the thermal‐mechanical properties and molecular‐scale interactions in polyacrylamide (PAAM) hydrogels, this research demonstrates a rubber‐glass‐crystal phase transition under the combined stimuli of temperature and moisture. Because of these hybrid phase transitions, PAAM hydrogels exhibit shape memory behavior in thermal and moist ...
Shuai Xu, Han Li, Wenjing Lu, Yiheng Xue, Jincheng Lei, Linchun He, Yu Chai, Zishun Liu   +7 more
wiley   +1 more source

A review of some tribo-dynamics phenomena from micro- to nano-scale conjunctions [PDF]

, 2009
The paper provides some highlights in the developments of theories of lubrication and contact mechanics from early pioneering works of Reynolds and Hertz to the establishment of elastohydrodynamic phenomenon by Ertel and Grubin. Some historical discourse
Teodorescu, M., Rahnejat, Homer, Votsios, V, Homer Rahnejat (1247550), Vasilis Votsios (7203305), M. Teodorescu (7204790), Teodorescu, M, Kushwaha, M, Kushwaha, M., M. Kushwaha (7208627), Rahnejat, H., Votsios, V., Johns-Rahnejat, PM, Johns-Rahnejat, P. M., P.M. Johns-Rahnejat (7208630)   +14 more
core   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Relationship Analysis Between Helicopter Gearbox Bearing Condition Indicators and Oil Temperature Through Dynamic ARDL and Wavelet Coherence Techniques

Machines
This study investigates the dynamic relationship between bearing gearbox condition indicators (BGCIs) and the lubrication oil temperature within the framework of health and usage monitoring system (HUMS) applications.
Lotfi Saidi, Eric Bechhofer, Mohamed Benbouzid   +2 more
doaj   +1 more source

Experimental parameters of friction and wear under different lubrication environments.

, 2023
Experimental parameters of friction and wear under different lubrication environments.
Liangfei Fang (13160672), Xingdong Sun (6077729), Liangyuan Xu (11586106), Rui Jiang (264894), Jianfei Zhou (5821007), Wandi Wu (13162545), Ke Xu (134879)   +6 more
core   +1 more source