Efficiency analysis of two degrees of freedom epicyclic gear transmission and experimental validation

Chen, Chao; Chen, Jiabin

doi:10.1016/j.mechmachtheory.2014.12.017

Cited by 25 publications

(24 citation statements)

References 17 publications

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“…In [19], the formulae of theoretical efficiency are derived for the two-step differential transmissions, which were tested in the course of experimental research.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining performance efficiency of the differential in a device for speed change through epicycle

Малащенко

Strilets

2017

EEJET

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Визначений коефіцієнт корисної дії диференціалів, коли ведучою ланкою є сонячне колесо першої ступені, веденою -водило останньої, а ланками керування є епіцикли окремих ступеней. Отримані результати мають практичне застосу-вання при проектуванні нових пристроїв керування швидкістю, дозволяють оці-нити роботу диференціалів з огляду на енерговитрати і самогальмування та є підґрунтям для подальших досліджень Ключові слова: коефіцієнт корисної дії, зубчастий диференціал, зміна швид-кості, сателіт, епіцикл Определен коэффициент полезного действия дифференциалов, когда веду-щим звеном является солнечное коле-со первой ступени, ведомым -водило последней, а звеньями управления -эпи-циклы отдельных ступеней. Полученные результаты имеют практическое при-менение при проектировании новых устройств управления скоростью, позво-ляют оценить работу дифференциалов с точки зрения самоторможения и явля-ются подспорьем для дальнейших иссле-дований Ключевые слова: коэффициент полез-ного действия, зубчатый дифференциал, изменение скорости, сателлит, эпицикл UDC 621.833.65

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“…In [19], the formulae of theoretical efficiency are derived for the two-step differential transmissions, which were tested in the course of experimental research.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining performance efficiency of the differential in a device for speed change through epicycle

Малащенко

Strilets

2017

EEJET

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“…The role of super finishing in increasing gear efficiency have been investigated for varying speed by Andersson et al [10]. Additional works related to the efficiency of spur and helical gear pairs [11,12], epicyclical gear trains [13]; hypoid gears [14] can be found in the literature.…”

Section: Introductionmentioning

confidence: 99%

Efficiency and Durability of DLC-Coated Gears

Barbieri

Iarriccio

Pellicano

et al. 2020

Mechanisms and Machine Science

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This paper presents an experimental study on spur gears. Gears with and without tungsten-carbide coatings (WC/C) are compared in terms of efficiency, durability and vibration performance. In order to carry out the experiments, a test rig including two electric motors/brakes is described. Gears are designed for this specific experimental campaign, so that the number of teeth, the selected materials and thermochemical treatments are optimal to investigate gear efficiency and durability. The experimental procedure allows for a simultaneous evaluation of efficiency and dynamic transmission error by varying the rotational velocity of the gear pair. An additional investigation has been performed for varying load, so that a complete characterization of the effect of WC/C coating on gear performance is presented.

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“…literature review. Differential gear transmission transitions are the subject of works [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

mentioning

confidence: 99%

“…In [10], the performance eficiency of complex gear trans missions is investigated on the basis of graphic and screw theo ries, which allow obtaining approximate values.…”

mentioning

confidence: 99%

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Energy effectiveness of the differential of a device for speed change through the sun gear

Strilets¹,

Малащенко²,

Strilets³

2019

NVNGU

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Purpose. Theoretical and computer research and determination of performance efficiency of three and fourstage gear dif ferentials in speed changing devices through sun gears. Substantiation of the possibility of their use in machine drives based on estimating their energy efficiency and possible selfbraking. methodology. To solve this problem, we used the method of "potential power"; by computer simulation, analytical expressions for the performance efficiency are obtained; using the MS Excel software package, the graphical dependencies of energy efficiency on the gear ratio, the angular velocity of the sun gear and the number of stages are obtained. findings. The obtained graphic dependences for the performance efficiency of three and fourstage gears differentials allow one to follow visually the change in the value of the efficiency, depending on the angular velocity of the sun gear, the gear ratio and the number of steps. This allows us to estimate the perfection of the given differentials in terms of energy consumption and possible selfbraking. originality. For the first time, analytical expressions were obtained for a more precise determination of the efficiency of a three and fourstage differential gears with a driving carrier and a driven ring gear, or vice versa. Obtained from the analytical formulas, graphic dependences for the performance efficiency allow one to follow the change in the value of the performance efficiency. Practical value. It is recommended for implementation in designing and constructing practice when developing the speed change devices through the differential transmissions of drives of various machines. It can be used in the educational process of technical higher educational establishments in mechanical engineering disciplines in the study of machines drives.

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Efficiency analysis of two degrees of freedom epicyclic gear transmission and experimental validation

Cited by 25 publications

References 17 publications

Determining performance efficiency of the differential in a device for speed change through epicycle

Determining performance efficiency of the differential in a device for speed change through epicycle

Efficiency and Durability of DLC-Coated Gears

Energy effectiveness of the differential of a device for speed change through the sun gear

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