Results 1 to 10 of about 186,585 (293)
Crossover from positive to negative optical torque in mesoscale optical matter [PDF]
Nature Communications, 2018 Negative optical torque has been predicted theoretically, but experimental demonstrations have been scarce. Here, the authors show that the optical torque in a mesoscopic optical matter array can be reversed depending on number, separation and ...
Fei Han +6 more
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Positive Torque Modulation Method and Key Technology of Conventional Beam Pumping Unit
Energies, 2022 The large fluctuation of net torque and the existence of negative torque on the crank output shaft of the beam pumping unit are the decisive factors leading to its low efficiency and high energy consumption.
Jinchao Xu +3 more
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Kinematic and Dynamic Simulation Analysis of Modified Conventional Beam Pumping Unit
Energies, 2022 The large net torque fluctuations in the reducer output shafts of conventional beam pumping units and the existence of negative torque are the decisive factors that lead to their low efficiency and high energy consumption. This study developed a positive
Jinchao Xu, Wei Li, Siyuan Meng
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eJournal of Oral Maxillofacial Research, 2022 Objectives: The purpose of this experimental study was to investigate the correlation between the frictional resistance torque of tap drilling prior to implant placement and the primary stability after implant placement.
Kaien Wakamatsu +5 more
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Alexandria Engineering Journal, 2023 An online torque sharing function (TSF) with instantaneous torque error compensation method for switched reluctance machines is proposed to maintain a minimized ripple operation.
Ufuk Genc, Burak Tekgun
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A Method to Determine the Torque Ripple Harmonic Reduction in Skewed Synchronous Reluctance Machines
Applied Sciences, 2023 In this paper, a discrete skew methodology is presented to understand the effect of skewing angle on electromagnetic torque in SynRM design. A new approach is proposed to estimate the amplitude of each torque ripple component as a function of skewing ...
César Gallardo +3 more
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Reliability design of relief groove for torque shaft of shearer
Advances in Mechanical Engineering, 2020 On cutting coal, the cutting resistance of a shearer may change suddenly due to uneven coal quality. It can lead to sudden acceleration of the cutting motor, deceleration, overload shutdown, and even burnout of the motor.
Hongbin Gao, Qianqian Zhang
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Recent Development in the Design of Wind Deflectors for Vertical Axis Wind Turbine: A Review
Energies, 2021 Developments in the design of wind turbines with augmentation are advancing around the globe with the goal of generating electricity close to the user in built-up areas. This is certain to help lessen the power generation load as well as distribution and
Altaf Hussain Rajpar +3 more
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Active Control Method for Torsional Vibration of DFIG Drive Chain Under Asymmetric Power Grid Fault
IEEE Access, 2020 When the asymmetric fault occurs in power grid, it will cause the oscillation of the electromagnetic torque of the doubly-fed induction generator(DFIG).
Shiji Tian +4 more
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Concept of a new overrunning clutch with the characteristic of reverse force transfer at high speed
Engineering Reports, 2021 To extend the functionality of the overrunning clutch. A new overrunning clutch with the characteristic of reverse torque transfer direction at high speed is proposed in this paper.
Huiyong Zhao +3 more
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