Results 71 to 80 of about 622 (280)

Analysis of the Engagement Characteristic of the Improved Marine Wet Multi-plate Clutch

open access: yesJixie chuandong, 2015
In order to further the engagement characteristics of marine wet multi-plate clutch for accurate analysis and lay the foundation for the subsequent optimal design of marine clutch.Taking the marine wet clutch as the research object,based on the ...
Zhu Yongxiang
doaj  

TRANSMITTED POWER AND ENERGY FLOW BEHAVIOR OF DEGRADING WET FRICTION CLUTCHES

open access: yesInternational Journal of Applied Research in Mechanical Engineering, 2012
Experiments and simulations performed in the framework of accelerated-life tests of wet friction clutches reveal that with the progression of degradation of clutches, the transmitted power decreases together with a change in the energy flow behavior, mainly in the pre-lockup phase.
Iqbal, Shoaib   +3 more
openaire   +2 more sources

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

open access: yesAdvanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang   +5 more
wiley   +1 more source

重型非公路汽车湿式离合器表面系数对接合特性影响的研究

open access: yesJixie chuandong, 2014
Aiming at the existence problem of wear and high temperature during the process of wet clutch engagement.Through referencing wet clutch surface coefficients,taking heavy off-road automobile wet clutch as the study object,using micro convex body ...
陈兆俊
doaj  

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

open access: yesAdvanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang   +5 more
wiley   +1 more source

Optimal control for jitter suppression of clutch engagement in upshift process of electric vehicles

open access: yesAdvances in Mechanical Engineering, 2016
In the shift process of large-order automatic transmission, jitter phenomenon is common in clutch engagement process, which greatly affects the ride comfort of the vehicle.
Junqiu Li, Yihe Wang, Yizheng Wang
doaj   +1 more source

The Tribological Characteristics of Cu-Based Friction Pairs in a Wet Multidisk Clutch Under Nonuniform Contact

open access: yes, 2017
This work is devoted to investigate the effects of thermal buckling on the tribological characteristics of a Cu-based wet clutch by artificially modifying friction pairs into different contact ratios.
He-yan Li, Er-hui Zhao, Biao Ma
core   +1 more source

On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

open access: yesAdvanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos   +6 more
wiley   +1 more source

Frictional Heat Generation in Wet Clutch Engagement according to Groove Pattern on Clutch Pad

open access: yesJournal of the Korean Society of Tribologists and Lubrication Engineers, 2014
Huyndai Powertech, Co. Namyang, Korea(Received March 7, 2014 ; Revised May 13, 2014 ; Accepted May 14, 2014)Abstract − Frictional heat greatly influences the friction behaviors during clutch engagement. Therefore, theengagement of a wet or dry clutch is frequently not under control by the frictional heat.
HaeYong Kim, Siyoul Jang, WooJung Kim
openaire   +2 more sources

Recent Advances of Slip Sensors for Smart Robotics

open access: yesAdvanced 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   +8 more
wiley   +1 more source

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