Results 11 to 20 of about 4,383 (225)
Mathematical Model of Drag Torque with Surface Tension in Single-Plate Wet Clutch
Chinese Journal of Mechanical Engineering, 2019 Reduction of drag torque in disengaged wet clutches is essential for transmission research because it is one of the potentials of efficiency improvement.
Zengxiong Peng, Shihua Yuan
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Torque and Drag Forces Problems in Highly Deviated Oil Well
Iraqi Journal of Chemical and Petroleum Engineering, 2018 Excessive torque and drag can be critical limitation during drilling highly deviated oil wells. Using the modeling is regarded as an invaluable process to assist in well planning and to predict and prevent drilling problems.
Hasan Ali Neamah +1 more
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Multi-objective Optimization Design of Wet Friction Clutches
Jixie chuandong, 2023 The drag torque of the wet clutch affects the efficiency of the transmission, and the engagement torque of the clutch affects the reliability of the transmission.
Jiang Kai +4 more
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Flow structures and wall parameters on rotating riblet disks and their effects on drag reduction
Alexandria Engineering Journal, 2022 The demand of energy saving and loss mitigation in modern industry gives rise to drag reduction techniques such as micro groove/riblet ever since the last century.
Tong Liang +3 more
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Multi-Objective Optimization of Drilling Trajectory Considering Buckling Risk
Applied Sciences, 2022 Directional drilling involves three sections—vertical, curved, and horizontal—and is used for drilling offshore wells and mining unconventional resources.
Jiho Jeong +4 more
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Tribology Online, 2016 In the automotive industry one of the crucial issues is reduction of CO2 emission to protect environment. A lot of researches have been done to reduce the CO2 emission of cars by improving efficiency of engine and engine parts or lowering the weight ...
Shahjada Ahmed Pahlovy +4 more
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Torque & Drag Analysis Using Finite Element Method
Modern Applied Science, 2011 The calculation and analysis of torque and drag play an important role in drilling and well design. Different models (soft, stiffness, mixed and finite element) have been used to calculate the torque and drag. This paper introduces a practical FEA (Finite Element Analysis) model of the drill string which can reflect working behavior, including ...
Andrew Wu +2 more
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Analysis and Suppression Method of Drag Torque in Wide-Speed No-Load Wet Clutch
ActuatorsUnder no-load conditions, the wet clutch of vehicles generates drag torque across a wide speed range, which increases power loss in the transmission system and significantly impacts its efficiency and reliability.
Rui Liu +5 more
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Frontiers in Energy Research, 2023 Wind power generation is considered an effective way for ships to harness wind energy, and the aerodynamic characteristics of wind turbines determine wind energy utilization and efficiency.
Huawu Zhang, Yihuai Hu
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Applied Sciences, 2023 This paper focused on the investigation of the blades for a carousel rotor of a wind turbine with a vertical axis. Cross sections of the single coherent (SC) and the dual coherent (DC) blades were compared in terms of the aerodynamic forces and ...
Marcin Augustyn, Filip Lisowski
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