Kinematic and Power Analysis of Multi-Carrier Planetary Change-Gears through the Torque Method

Karaivanov, Dimitar Petkov; Arnaudov, Kiril

doi:10.1201/9781351049832-8

Cited by 2 publications

(5 citation statements)

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“…Along with the foregoing known principles of mechanics, the following two small but very useful innovations are made: e) For the greatest possible illustration of the method the known symbol of the Wolf [16] (Fig. 3) is used, but modified [3][4][5][6]. The each simple (single-carrier) PGT, which has three external shafts is depicted with a circle, from which the three shafts are coming out, marked differently from the original -i.e.…”

Section: Essence Of the Torque Methodsmentioning

confidence: 99%

“…This little innovation concerning the manner of marking the shafts makes the method very clear and useful f) Besides using the symbol of Wolf-Arnaudov, where appropriate another innovation is made. A new torque ratio is defined -the one of the unidirectional external torques [3][4][5][6]17]…”

Section: Essence Of the Torque Methodsmentioning

confidence: 99%

“…This simple method is very suitable for studying of complex, multi-carrier PGTs [6,26] such as the ninespeed change-gear discussed below. Simple formulae make it possible to compile process optimization software.…”

Section: Application Of the Torque Methodsmentioning

confidence: 99%

“…An easy-to-use, eye-catching, and definitely engineering method for kinematic and power analysis is the torque method [3][4][5][6]. Compared to the above two methods, it has, in general, the following advantages, especially in the analysis of complex compound PGTs:…”

Section: Introduction 1generalmentioning

confidence: 99%

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Analysis of nine-speed planetary change-gears through the torque method

Troha

Karaivanov²,

Vrcan³

2022

MATEC Web Conf.

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An alternative method for kinematic and power analysis of compound gear train is presented, which uses the torques and lever analogy of a given gear train. The method combines the accuracy of the Willis analytical method with the clarity of the graphic method of Kutzbach. Unlike these methods, the torque method allows determining not only the gear ratio, but the magnitude and direction of power flows, and hence the determination of efficiency of a given compound planetary gear train. The application of the method is illustrated with example of novel arrangement of complex nine-speed change-gear. Structural, kinematic, and power (efficiency) analysis are made. A software for these analysis facilitation is developed. A numerical example is presented and discussed.

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Section: Essence Of the Torque Methodsmentioning

confidence: 99%

Section: Essence Of the Torque Methodsmentioning

confidence: 99%

Section: Application Of the Torque Methodsmentioning

confidence: 99%

Section: Introduction 1generalmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of nine-speed planetary change-gears through the torque method

Troha

Karaivanov²,

Vrcan³

2022

MATEC Web Conf.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Structural connections between the component gear trains have been systematically researched, with methodology being provided to apply lever analogy to the determination of transmission ratios and efficiency calculations [21]. The kinematic properties of multi-carrier PGTs have been extensively researched in [22], [23], while the torque method was used to determine efficiencies of single and two-speed PGTs [24], [25].…”

Section: Introductionmentioning

confidence: 99%

Size and efficiency based comparison of kinematically equivalent two-carrier planetary gear trains

et al. 2022

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The subject of this paper is a two-carrier planetary gear train (PGT) which was developed for a specific purpose. This PGT may be used for applications in which a negative transmission ratio in the range -3…-143 is required. In this case, the mechanical and dimensional properties of the PGT have been analyzed for nominal negative transmission ratios of -30 and -40. All possible combinations of simple component PGT ideal torque ratios providing those transmission ratios were obtained. Only the combinations providing the minimum radial dimensions of the PGT assembly were selected. Subsequent analysis has shown that the PGT radial dimensions will be minimized when the ratio of the reference diameters of the planetary unit ring gears is close to unity, meaning that the PGT casing will be cylindrical rather than stepped. This paper also provides an overview of the DVOBRZ software package used to synthesize the different gearbox layouts for the required transmission ratio, combined with a basic introduction to single speed two-carrier PGTs for better understanding. The DVOBRZ software was used to select all the acceptable gearboxes were selected from the set of generated PGTs according to the criteria of minimum dimensions and acceptable efficiency range. This set of PGTs was checked for kinematic feasibility and construction concepts were created for feasible layouts.

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Kinematic and Power Analysis of Multi-Carrier Planetary Change-Gears through the Torque Method

Cited by 2 publications

References 0 publications

Analysis of nine-speed planetary change-gears through the torque method

Analysis of nine-speed planetary change-gears through the torque method

Size and efficiency based comparison of kinematically equivalent two-carrier planetary gear trains

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