Influence of indexing errors on dynamic response of spur gear pairs

İnalpolat, Murat; Handschuh, Michael J.; Kahraman, Ahmet

doi:10.1016/j.ymssp.2014.11.017

Cited by 75 publications

(42 citation statements)

References 11 publications

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“…The theoretical model has been kept simple in order to clearly show the effect of the gear centre distance variation and therefore there are several major assumptions in the theoretical model itself, as geometrical pitch, profile errors and ecentricity effects are neglected and the friction force between the teeth is neglected. The account of any of these effects would change the resulting vibration response presented here, as has been demonstrated by many authors [17,18] while excluding these effects assists in focusing only on the gear centre distance variation. Another major assumption is that the gear has been arranged in a way such that the translational motion is restricted in the direction along the line of action.…”

Section: Discussionmentioning

confidence: 84%

Dynamic modelling of flexibly supported gears using iterative convergence of tooth mesh stiffness

Xue

Howard

2016

Mechanical Systems and Signal Processing

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This paper presents a new gear dynamic model for flexibly supported gear sets aiming to improve the accuracy of gear fault diagnostic methods. In the model, the operating gear centre distance, which can affect the gear design parameters, like the gear mesh stiffness, has been selected as the iteration criteria because it will significantly deviate from its nominal value for a flexible supported gearset when it is operating.The FEA method was developed for calculation of the gear mesh stiffnesses with varying gear centre distance, which can then be incorporated by iteration into the gear dynamic model. The dynamic simulation results from previous models that neglect the operating gear centre distance change and those from the new model that incorporate the operating gear centre distance change were obtained by numerical integration of the differential equations of motion using the Newmark method. Some common diagnostic tools were utilized to investigate the difference and comparison of the fault diagnostic results between the two models. The results of this paper indicate that the major difference between the two diagnostic results for the cracked tooth exists in the extended duration of the crack event and in changes to the phase modulation of the coherent time synchronous averaged signal even though other notable differences from other diagnostic results can also be observed.

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Section: Discussionmentioning

confidence: 84%

Dynamic modelling of flexibly supported gears using iterative convergence of tooth mesh stiffness

Xue

Howard

2016

Mechanical Systems and Signal Processing

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“…Index errors will bring higher amplitude at the rotation frequency of shaft but run out errors will lead to lower values. Handschuh et al [23], Talbot et al [24] and Inalpolat et al [25] performed numerical simulations and experiments to investigate the effect of tooth spacing errors on the root stress, dynamic factors and dynamic transmission error of a spur gear pair, respectively. The results suggested that tooth spacing errors have a direct impact on the root stress and significantly alter the baseline dynamic response.…”

Section: Open Accessmentioning

confidence: 99%

Quasi-Static and Dynamic Behaviors of Helical Gear System with Manufacturing Errors

Yuan

Chang

et al. 2018

Chin. J. Mech. Eng.

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Time-varying mesh stiffness (TVMS) and gear errors include short-term and long-term components are the two main internal dynamic excitations for gear transmission. The coupling relationship between the two factors is usually neglected in the traditional quasi-static and dynamic behaviors analysis of gear system. This paper investigates the influence of short-term and long-term components of manufacturing errors on quasi-static and dynamic behaviors of helical gear system considering the coupling relationship between TVMS and gear errors. The TVMS, loaded static transmission error (LSTE) and loaded composite mesh error (LCMS) are determined using an improved loaded tooth contact analysis (LTCA) model. Considering the structure of shaft, as well as the direction of power flow and bearing location, a precise generalized finite element dynamic model of helical gear system is developed, and the dynamic responses of the system are obtained by numerical integration method. The results suggest that lighter loading conditions result in smaller mesh stiffness and stronger vibration, and the corresponding resonance speeds of the system become lower. Long-term components of manufacturing errors lead to the appearance of sideband frequency components in frequency spectrum of dynamic responses. The sideband frequency components are predominant under light loading conditions. With the increase of output torque, the mesh frequency and its harmonics components tend to be enhanced relative to sideband frequency components. This study can provide effective reference for low noise design of gear transmission.

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“…The heat deformations caused by the uneven temperature field distribution of the gears is coupled with the elastic deformation when the gears mesh, resulting in tooth profile and tooth shape deviations, which cause many problems such as interference, vibration, and noise [1][2][3][4][5][6][7]. However, the traditional calculation method of the static transmission errors of gears does not consider the influence of the temperature field.…”

Section: Introductionmentioning

confidence: 99%

Calculation of static transmission errors associated with thermo-elastic coupling contacts of spur gears

Wang¹,

Li²,

Zhang³

et al. 2018

Vib. proced.

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The static transmission error is one of the key incentives of gear dynamics and addressed by many scholars. However, the traditional calculation method of static transmission errors of spur gears does not take into account the influence of thermo-elastic coupling caused by the gear temperature field, and it limits the accuracy of the dynamic characteristic analysis. Thus, in this study, the calculation method of static transmission errors associated with thermo-elastic coupling is proposed. Furthermore, the differences between static transmission errors associated with thermo-elastic coupling contacts and traditional method of gear is discussed. The study is helpful to improve the accuracy of dynamic analysis of gear transmission system.

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Influence of indexing errors on dynamic response of spur gear pairs

Cited by 75 publications

References 11 publications

Dynamic modelling of flexibly supported gears using iterative convergence of tooth mesh stiffness

Dynamic modelling of flexibly supported gears using iterative convergence of tooth mesh stiffness

Quasi-Static and Dynamic Behaviors of Helical Gear System with Manufacturing Errors

Calculation of static transmission errors associated with thermo-elastic coupling contacts of spur gears

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