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Relevant bibliographies by topics / Gear shifting mechanism

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Journal articles

Academic literature on the topic 'Gear shifting mechanism'

Author: Grafiati

Published: 28 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Gear shifting mechanism"

1

Dwivedi, Shivam, and Prof Vikas Gupta. "AUTOMATION IN GEAR SHIFTING MECHANISM." SMART MOVES JOURNAL IJOSCIENCE 4, no. 5 (2018): 7. http://dx.doi.org/10.24113/ijoscience.v4i5.139.

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For the vehicle to move forward the engine has to be connected to driving wheels so as to propel the vehicle. The engine rotates at relatively high speeds, while the wheels are required to turn at slower speeds. The torque requirements of the vehicle vary as per the prevailing conditions of load, terrain etc. Gear box provides different gear ratios between the engine and the driving wheels, to suit the varying road conditions such as when climbing hills, traversing rough road or sandy road or pulling a load. The required gear shift for providing varying torque requirements can be obtained eith

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2

Kim, Sun Je, and Kyung-Soo Kim. "Experimental Investigation of the Seamless Gearshift Mechanism Using an Electric Motor and a Planetary Gear-Set." Energies 13, no. 24 (2020): 6705. http://dx.doi.org/10.3390/en13246705.

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Vehicle transmission which has discrete gear-stages inevitably produces torque drop during shifting gears. This torque drop should be minimized because it may lead to uncomfortable driving feeling and degradation of acceleration performance. In accordance with the spread of electric-powered vehicle technology, this study proposes novel transmission architecture to eliminate torque drop during shifting gears by using one electric motor and verifies its operating concept through experiments with a test-bench. The proposed transmission, called CGST (clutchless geared smart transmission) can synch

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3

Wu, Yi-Chang, and Che-Wei Chang. "DEVELOPMENT OF 3-SPEED REAR HUB BICYCLE TRANSMISSIONS WITH GEAR-SHIFTING MECHANISMS." Transactions of the Canadian Society for Mechanical Engineering 39, no. 3 (2015): 407–18. http://dx.doi.org/10.1139/tcsme-2015-0030.

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Rear hub bicycle transmissions require less maintenance and are more reliable than rear derailleurs. This study proposes a systematic design process for the conceptual design of 3-speed rear hub bicycle transmissions. By analyzing the kinematics of a basic epicyclic gear mechanism using the fundamental circuit method, the gear sequence and clutching sequence arrangements for 3-speed rear hub transmissions can be obtained. The numbers of gear-teeth for all gear elements resulting in a minimum installation space and satisfying the required speed ratio at each gear stage are determined. A gear-sh

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4

Wu, Yi-Chang, and Li-An Chen. "A GEAR-SHIFTING MECHANISM WITH A ROTARY CONFIGURATION FOR APPLICATIONS IN A 16-SPEED BICYCLE TRANSMISSION HUB." Transactions of the Canadian Society for Mechanical Engineering 40, no. 4 (2016): 597–606. http://dx.doi.org/10.1139/tcsme-2016-0047.

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A multi-speed bicycle transmission hub includes a geared speed-changing mechanism for providing different speed ratios and a gear-shifting mechanism for controlling the gear stage. This paper focuses on the embodiment design of a mechanical gear-shifting mechanism with a rotary configuration used in a 16-speed transmission hub for bicycles. A 16-link, five-degrees of freedom (DOF) split-power epicyclic gear mechanism, which consists of a gear differential and four sets of parallel-connected basic planetary gear trains, is introduced. Based on the clutching sequence table, a systematic design p

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5

Zhu, Zhen, Xiang Gao, Daoyuan Pan, Yu Zhu, and Leilei Cao. "Study on the Control Strategy of Shifting Time Involving Multigroup Clutches." Mathematical Problems in Engineering 2016 (2016): 1–17. http://dx.doi.org/10.1155/2016/9523251.

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This paper focuses on the control strategy of shifting time involving multigroup clutches for a hydromechanical continuously variable transmission (HMCVT). The dynamic analyses of mathematical models are presented in this paper, and the simulation models are used to study the control strategy of HMCVT. Simulations are performed in SimulationXplatform to investigate the shifting time of clutches under different operating conditions. On this basis, simulation analysis and test verification of two typical conditions, which play the decisive roles for the shifting quality, are carried out. The res

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6

Wu, Yi Chang, Li An Chen, and Tze Cheng Wu. "Design of 3-Speed Bicycle Transmission Hubs." Applied Mechanics and Materials 764-765 (May 2015): 228–32. http://dx.doi.org/10.4028/www.scientific.net/amm.764-765.228.

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This paper presents the embodiment designs of 3-speed transmission hubs which consist of basic planetary gear mechanisms and gear-shifting control mechanisms. Two feasible clutching sequence tables are synthesized by analyzing the kinematic structure of the gear mechanism. A mechanical control mechanism is used to control the engagement or disengagement of each clutch to guide the power flow from the rear sprocket via the gear mechanism to the hub shell. The power transmission path at each gear stage is further checked to verify the validity of the transmission hub. The embodiment designs of t

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7

Bhattacharjee, Debraj, Prabha Bhola, and Pranab K. Dan. "A heuristic synthesis of multistage planetary gearbox layout for automotive transmission." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 233, no. 2 (2018): 336–47. http://dx.doi.org/10.1177/1464419318759893.

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The automatic transmission system is very crucial for the high-speed vehicles, where the planetary or epicyclic gearbox is a standard feature. With the increase in design intricacies of planetary gearbox, mathematical modelling has become complex in nature and therefore there is a need for modelling of multistage planetary gearbox including the shifting scheme. A random search-based synthesis of three degrees of freedom (DOF) high-speed planetary gearbox has been presented in this paper, which derives an efficient gear shifting mechanism through designing the transmission schematic of eight sp

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8

Gupta, Ankit. "Design of three speed planetary gear hub system with gear shifting mechanism." IOP Conference Series: Materials Science and Engineering 810 (May 5, 2020): 012011. http://dx.doi.org/10.1088/1757-899x/810/1/012011.

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9

Chen, Xingbin, Xinhe Min, Peng Zhang, Nini Li, Zhihong Zhong, and Yuansheng Wu. "Study on Impact Characteristics of Multistage Double Crown Face Gear Pairs considering Ratio Switching under Variable Conditions." Shock and Vibration 2020 (August 5, 2020): 1–16. http://dx.doi.org/10.1155/2020/8880093.

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This paper presents a new transmission mechanism with multistage face gears as the core components for realizing variable speeds with differential meshing. To improve face gear transmission smoothness, suppress meshing resonance, reduce noise, and optimize power transmission performance during the gear shifting process, load distribution between meshing teeth during the transmission process and impact loads during various shifting stages must be determined. Herein, we present a gear impact model considering double crown gear meshing configuration, contact deformation, variable working conditio

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10

Irfan, Muhammad, Viktor Berbyuk, and Håkan Johansson. "Minimizing synchronization time of a gear shifting mechanism by optimizing its structural design parameters." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234, no. 2-3 (2019): 488–504. http://dx.doi.org/10.1177/0954407019860363.

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A gear shifting mechanism is modeled in GT-Suite software. The mechanism has three main bodies: sleeve, ring, and gear. Results obtained from the simulation show that GT-Suite model can predict gear shifting process. Synchronization processes for three conditions of nominal, road grade, and vibrational motion of the master are studied in six cases by considering the sleeve and the gear as a master alternatively. The optimization based on the GT-Suite model is performed for each case to find the minimum gear shifting time based on variations of 17 structural design parameters. Minimum synchroni

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