Efficiency Analysis of Herringbone Star Gear Train Transmission with Different Load-Sharing Conditions

Liu, Dong; Wang, Shuyan; Li, Dongliang; Yang, Yong

doi:10.3390/app12125970

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…Li et al [8] established an efficiency calculation model for a split star gear system with load sharing coefficient, and studied the effects of torque and installation error on the load coefficient of the gear system using dynamic simulation software. Jodder and Saha [9] studied the speed ratio, torque, efficiency, and power flow direction of a three-stage coupled planetary gear system and provided a calculation method for the efficiency of the three-stage planetary gear system.…”

Section: Introductionmentioning

confidence: 99%

Research on the calculation and evaluation method of transmission efficiency of noncircular planetary gear

Li,

Dong,

Zhao

et al. 2024

Meas. Sci. Technol.

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The torque fluctuation characteristics of noncircular planetary gear (NPG) systems are difficult to obtain, and there is no clear analysis method and evaluation method for transmission efficiency, which seriously affects their service performance. Given that, this article establishes a torque fluctuation model for NPG systems based on the principle of gear meshing and differential geometry theory and methods, taking into account factors such as actual working conditions and speed loads. And proposed, the comprehensive transmission rate, a new method for evaluating the efficiency of NPG systems. By analyzing the actual working conditions of NPG systems, the influence mechanism of alternating load and speed on torque fluctuation and transmission efficiency was explored. The research results indicate that the alternating load can cause an increase in system impact and vibration. The comprehensive transmission rate of NPG systems decreases with increasing rotational speed and increases with increasing load, and is more sensitive to changes in rotational speed. The trend of comprehensive transmission rate and transmission efficiency of NPG systems is basically consistent, indicating that the proposed method of using comprehensive transmission rate to evaluate transmission efficiency is a practical and feasible analysis method. The research results can provide a new method for dynamic measurement and evaluation of torque and transmission efficiency of non-circular gear transmission systems.

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Section: Introductionmentioning

confidence: 99%

Research on the calculation and evaluation method of transmission efficiency of noncircular planetary gear

Li,

Dong,

Zhao

et al. 2024

Meas. Sci. Technol.

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Research on nonlinear characteristics of herringbone planetary gear transmission system considering temperature effect

Wang,

Luo,

et al. 2024

Acta Mech

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Study on the influence of 3D modification on dynamic characteristics of a herringbone gear transmission system

Wang

2023

Trans. Can. Soc. Mech. Eng.

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The 3d modification is a advanced technology that comprehensively considers tooth profile modification and axial modification to reduce vibration and noise. Therefore, this paper combines 3d modification technology with contact characteristics and dynamic properties to study the influence of 3d modification on the dynamic performance of herringbone gear system. This paper employs parabolic tooth profile instead of the cutter straight tooth profile to achieve 3d modified tooth surface and deduces tooth surface equation. Then, the tooth contact analysis (TCA) and loaded tooth contact analysis (LTCA) are used to simulate the meshing process of teeth. And the dynamic model of herringbone gear system under three internal excitations is established. Finally, 3d modification, TCA, LTCA technology and gear dynamic characteristics are combined to study the influence of 3d modification on the system dynamic behavior. The results show that, compared with tooth profile modification and axial modification, the 3d modification can effectively compensate the influence of errors on gear system and have very good damping effect. The relative vibration displacements on the left and right meshing lines of gear pair are reduced by 47.60% and 51.20%, and root mean square values are decreased by 30.50% and 36.10% before and after modification.

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Efficiency Analysis of Herringbone Star Gear Train Transmission with Different Load-Sharing Conditions

Cited by 4 publications

References 9 publications

Research on the calculation and evaluation method of transmission efficiency of noncircular planetary gear

Research on the calculation and evaluation method of transmission efficiency of noncircular planetary gear

Research on nonlinear characteristics of herringbone planetary gear transmission system considering temperature effect

Study on the influence of 3D modification on dynamic characteristics of a herringbone gear transmission system

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