Results 11 to 20 of about 105,726,892 (209)
Journal of Physics: Conference Series, 2007 As the technological advances lead to miniaturization of mechanical devices, engineers face new challenges that are brought about by the fundamentally different rules that apply at small scales. One of the biggest problems in small machines is the excessive wear of the many surfaces that work in contact with each other, which severely constrains the ...
Ashourvan, A. +2 more
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Noncontact Rack and Pinion Powered by the Lateral Casimir Force [PDF]
Physical Review Letters, 2007 The lateral Casimir force is employed to propose a design for a potentially wear-proof rack and pinion with no contact, which can be miniaturized to nano-scale. The robustness of the design is studied by exploring the relation between the pinion velocity and the rack velocity in the different domains of the parameter space.
Ashourvan, A. +2 more
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Wear Analysis of Tooth Surface of Rack-and-pinion with Variable Mounting Distance for Rack Railway
Jixie chuandong, 2022 As rack-and-pinion is the key driving part of rack railway， mastering the wear condition and law of the gear rack pair tooth surface during the operation of the gear rail vehicle is conducive to ensuring the smooth and safe operation of the gear rail ...
Yingjie Xu +4 more
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Arbitrary vehicle steering characteristics with changing ratio rack and pinion transmission
Advances in Mechanical Engineering, 2015 In order to achieve arbitrary steering characteristics at vehicles, a steering mechanism was developed, in which changing ratio rack and pinion connections have been applied.
András G Bendefy +2 more
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Discretization Envelope Design Modeling Method of Rack and Pinion with Variable Ratio
Jixie chuandong, 2019 A design method of discretization envelope is proposed for the variable ratio rack and pinion, a transverse profile model of helical gear is established as the gear shaper cutter and the generating motion of gear shaping is simulated to obtain the ...
Dai Yin
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Rectification of the lateral Casimir force in a vibrating noncontact rack and pinion [PDF]
Physical Review E, 2007 The nonlinear dynamics of a cylindrical pinion that is kept at a distance from a vibrating rack is studied, and it is shown that the lateral Casimir force between the two corrugated surfaces can be rectified. The effects of friction and external load are taken into account and it is shown that the pinion can do work against loads of up to a critical ...
Ashourvan, A. +2 more
openaire +6 more sources
Contact Analysis for Beveloid Pinion and Rack Considering Axial Clearance Change
Jixie chuandong, 2020 Aiming at the problems that clearance is difficult to modify and operation stability is poor of pinion and rack used in the large machine tool carrier feeding device，the beveloid pinion and rack which can modify clearance axially is proposed.The finite ...
Huang Hongxin +3 more
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Nauka ta progres transportu, 2014 Purpose. During operation of cold-pilgering mills rotation of the shafts is carried out by means of pinion gears being in meshing with stationary gear racks, which is accompanied by various tribological defects, that can be avoided during the detailed ...
T. M. Kadilnikova, L. F. Sushko
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Research on the Influence of Wheel Tread Wear on Pinion and Rack Contact State of Rack-rail Trains
Jixie chuandongAiming at the problem that it is difficult to explore the contact state law of racks and pinions under the condition of rack-rail train wheel tread wear, a calculation model of rack and pinion tooth surface contact stress considering wheel tread wear is ...
Lei Huanhuan +5 more
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Tooth Contact Analysis of Herringbone Rack Gears of an Impulse Continuously Variable Transmission
International Journal of Automotive Science and Technology, 2021 Finite element based tooth contact analysis of a rack and pinion system of an impulse continuously variable transmission is performed in this study. The rack and pinion system are designed with involute profile herringbone tooth profiles.
Zhi Geng, Gang Li̇
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