A theoretical study of the overall transmission error in planetary gear sets

Hu, Yong Jin; Ryali, Lokaditya; Talbot, David; Kahraman, Ahmet

doi:10.1177/0954406219830436

Cited by 19 publications

(6 citation statements)

References 18 publications

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“…In their research, they considered different parameters, such as different gear set kinematic configurations, gear modifications, and planetary gear sets with varying numbers of equally or unequally spaced planets. In 2019, they developed a planetary load distribution model to predict the overall transmission error of planetary gear sets with both planet pin position errors and gear run-out errors [48]. They quantified the impact of carrier manufacturing errors resulting in unequal planet-to-planet load sharing on the gear set transmission error.…”

Section: Load Sharing Modelmentioning

confidence: 99%

Planet Load-Sharing and Phasing

et al. 2022

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This paper presents an analysis of the scientific literature devoted to the problem of load sharing and phasing in planetary gearboxes. The wide range of research topics demonstrates the technical challenges of understanding planetary load-sharing and planet phasing. This review includes studies having the goal of developing models for load sharing and exploring the positive or negative effects of different parameters such as phasing on the load distribution among planets. Practical aspects are also considered, for example, the effects of some errors that are unavoidable during manufacturing or working conditions, e.g., misalignments or position errors. Methods for improving the load-sharing characteristics, e.g., flexible ring or floating components, are discussed as well.

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Section: Load Sharing Modelmentioning

confidence: 99%

Planet Load-Sharing and Phasing

et al. 2022

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“…The load distribution model of planetary gear sets was used to predict the transmission errors of planetary gear sets under distinct planet phasing conditions. 4 The influence of profile modifications on the transmission error also has been studied. A model was developed for the load sharing ratio and quasi-static transmission error of spur gears with profile modifications by Pleguezuelos.…”

Section: Introductionmentioning

confidence: 99%

A precision prediction model for the transmission system of swing angle milling head considering machining and assembly errors

Yang

Zhao

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The performance of the milling head is affected by the machining and assembly process of the parts. The key to improving machining accuracy and reliability of swing angle milling head is to establish the precision prediction model. Therefore, a precision prediction model of swing angle milling head under the influence of multiple errors’ sources is built. The transmission and accumulation of machining and assembly errors along the assembly sequence path for the transmission system are carried out. All essential components on the assembly sequence path are considered. In addition, the secondary impact of the bearing seat hole is also taken into account. The source of the gear assembly errors is explained. The predicted range of transmission error based on the coupling relationship between assembly errors and transmission error is obtained. A precision experiment is carried out, and the result is within the predicted range. This research demonstrates that the errors' coupling relationship considered in this paper does exist and has an effect on transmission error, which provides a new idea for calculating transmission error of other gear systems.

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“…For static and dynamic research, Hu et al [2,3] studied the overall transmission error of planetary gear train and analysed the influence of errors on the transmission error. Iglesias et al [4] proposed a new model of spur gear planetary gear system to study quasi-static characteristic and calculate the contact force.…”

Section: Introductionmentioning

confidence: 99%

New model of two-stage helical planetary gears: Load sharing ratio and Transmission error

2022

Congreso Iberoamericano De Ingeniería Mecánica-Cibim 2022

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ResumenEl tren de engranajes planetarios se usa ampliamente en maquinaria pesada de gran tamaño, como helicópteros y barcos, debido a su gran relación de transmisión, alta eficiencia de transmisión, gran capacidad de carga y tamaño pequeño. En este documento, se proporciona un nuevo modelo estático de tren de engranajes planetarios helicoidales de dos etapas y se estudian la relación de carga compartida y el error de transmisión. En primer lugar, de acuerdo a la relación de los dientes de los engranajes, se dieron las diferentes fórmulas de desfase de engrane y se establecieron las ecuaciones de equilibrio estático del tren de engranajes planetarios helicoidales. Luego, la fuerza de contacto entre dos engranajes engranados se obtuvo resolviendo las ecuaciones, y también la relación de carga compartida bajo diferentes fases de engrane. Por lo tanto, se estudiaron el error de transmisión del elemento de salida y la relación de carga compartida. Finalmente, se tuvo en cuenta el error de posición del pinhole y se analizó la influencia del error en la relación de carga compartida y el error de transmisión. Muestra que la frecuencia de excitación del error de transmisión está relacionada con el número de engranajes planetarios y la

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A theoretical study of the overall transmission error in planetary gear sets

Cited by 19 publications

References 18 publications

Planet Load-Sharing and Phasing

Planet Load-Sharing and Phasing

A precision prediction model for the transmission system of swing angle milling head considering machining and assembly errors

New model of two-stage helical planetary gears: Load sharing ratio and Transmission error

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