Study on the meshing force of misaligned gear coupling

Hu, Yunbo; Wang, Huibin; Tan, Yuanqiang; Jiang, Likuan; Jiang, Shengqiang

doi:10.2991/ifmca-16.2017.70

Proceedings of the 2016 International Forum on Mechanical, Control and Automation (IFMCA 2016) 2017

DOI: 10.2991/ifmca-16.2017.70

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Study on the meshing force of misaligned gear coupling

Yunbo Hu¹,

Huibin Wang²,

Yuanqiang Tan³

et al.

Abstract: Abstract. Gear couplings are used to transmit torque, and theoretically all teethes transmitted the same amount of torque and there is no difference in meshing force for each tooth. In practice, due to manufacturing and mounting errors, not all teeth transmit the same amount of torque, and then resulting in an uneven load between teeth and an over loading condition may occur. In this paper, a theoretical model of meshing force of gear coupling in misalignment and the finite element method was used to calculate… Show more

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2023

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Spline coupling in the rotor dynamics problems of a gas turbine engine

Nikolaev,

Leontiev,

Popov

2023

EJSI

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Involute spline couplings are widely used in the aircraft gas turbine engine rotors. In the rotor dynamics problems, they are usually simulated by a link connecting the shafts. Rigidity characteristics of such a connection depend on a set of factors: forces acting from the connected shafts section leading to the shafts distortion in the spline coupling; torque transmitted by the splines; gaps between the splines; friction forces in the contact pairs. Taking into account all these factors is quite labor-intensive even in the finite element formulation. In addition, spline coupling is a nonlinear element, which characteristics depend on the engine operating mode. The paper presents an analytical model making it possible to account for all operating factors of a spline coupling. The model was verified using the finite element calculations.

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Spline coupling in the rotor dynamics problems of a gas turbine engine

Nikolaev,

Leontiev,

Popov

2023

EJSI

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Analysis of the approaches used for calculating involute splined couplings and the methods of considering their influence on the dynamic behavior of systems

Nikolaev,

Leontiev,

Popov

2023

Naučn. vestn. MGTU GA

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Spline couplings, due to their high reliability and strength parameters, are widespread not only in mechanical engineering. The ability to transmit high torque with a sufficiently long service life has led to the extensive use of these couplings in the aircraft industry. Since this unit is under heavy loads in aircraft gas turbine engines, much attention is paid not only to strength characteristics, but also to the influence on the dynamic parameters of the rotor system. To mitigate the risks of destruction and the occurrence of defects, a large number of studies are carried out allowing us to evaluate the rotor system operation with splines and make a forecast of its behavior in the event of various factors leading to a change in the operation of splines. This paper provides a review of various methods, techniques and models of involute spline couplings used in the analysis of the dynamic behavior of rotor systems. The analytical models that allow us to take into account the coupling in various systems as well as finite element models that demonstrate the description of various processes in splines. The publications, devoted to the comparison of finite element models with analytical ones confirming the results associated with the dynamic characteristics of systems with an increase in radial and angular swashes, have been considered. The results of comparing the above models and their results with experimental research to verify and confirm various effects are also presented. The given research of rotor systems with swash allows for a conclusion about a significant spline influence, since they can cause a change in the coupling rigidity, redistribution of contact, increased loads in meshing, increased vibration amplitudes, change in the spectrum of excited frequencies and self-oscillatory processes due to various factors.

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Study on the meshing force of misaligned gear coupling

Cited by 2 publications

References 1 publication

Spline coupling in the rotor dynamics problems of a gas turbine engine

Spline coupling in the rotor dynamics problems of a gas turbine engine

Analysis of the approaches used for calculating involute splined couplings and the methods of considering their influence on the dynamic behavior of systems

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