Results 181 to 190 of about 697,034 (272)

Optimization Design of Low Drag Torque Parameters of High-speed Wet Clutches

Jixie chuandong
In order to reduce the drag torque under high speed conditions, the equivalent radius is introduced into the traditional low speed torque model of a wet clutch with track vehicle, and the calculation model of the drag torque with radial groove is derived.
Wang Yuxi, Zhao Junsheng, Li Xueming, Gao Weidong, Gong Ke   +4 more
doaj  

Study on the composite fracture characteristics of filling and reinforcing cracked rock mass after high temperature damage

Deep Underground Science and Engineering, EarlyView.
Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan, Qiang Sun, Jianjun Hu, Liwei Zhang, Jishi Geng   +4 more
wiley   +1 more source

An improved adaptive position tracking strategy for automatic shift actuator with uncertain parameters. [PDF]

Sci Rep
Yin C, Wang S, Gao J, Xu G, Wu J.
europepmc   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Tribological and performance assessment of two wheeler brake pads using dynamometer testing. [PDF]

Sci Rep
Baskar P, Shukla K.
europepmc   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Determining Tyre Adhesion Characteristics Based on the Road Tests of Automobiles. [PDF]

Sensors (Basel)
Reński A, Brukalski M, Sar H, Abramowski M, Fundowicz P, Rokicki K.   +5 more
europepmc   +1 more source

Real‐time multiscale characterization of water migration in deep coal under stepwise pressure‐increasing injection: Combined low‐field nuclear magnetic resonance and multifractal approach

Deep Underground Science and Engineering, EarlyView.
The graphical abstract illustrates the real‐time multiscale characterization of water migration in deep coal under stepwise pressure‐increasing injection. Under in‐situ hydrostatic pressure, the water invasion front advances progressively along the axial direction as the injection pressure increases stepwise, tracked in real time by nuclear magnetic ...
Lei Song, Hongwei Zhou, Zelin Liu, Yimeng Wang, Xiaohai Zhang, Mingyuan Lu, Yang Ju   +6 more
wiley   +1 more source

Phase transitions perception in nonreciprocal mechanical metamaterials through electromagnetic resonance. [PDF]

Sci Adv
Deng Y, Zhao X, Huang Z, Li Y.
europepmc   +1 more source

Hybrid Graphene‐Carbon Nanotube (CNT) Conductive Additives System for Regulating Polytetrafluoroethylene (PTFE) Fibrillization Toward High‐Energy‐Density LiFePO4 Dry Cathodes

EcoEnergy, EarlyView.
Graphene sheets were introduced as low‐friction regulators to control PTFE fibrillization during dry electrode processing. Positioned between LFP particles and PTFE, graphene mitigates transmission of shear stress, enabling the formation of thick, long, and continuous PTFE fiber networks.
Jiwoon Kim, Seungmin Han, Minsung Kim, Bogeum Choi, Ungyu Paik, Taeseup Song   +5 more
wiley   +1 more source