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Gear System Parameters and Its Influence on Gearbox Noise
Technical Paper
2019-01-1562
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Tonal noise due to gears is one of the fundamental noise problems in a gearbox. Gear tooth deflections generate dynamic forces that lead to unwanted load fluctuations, thus noise. Different factors that are considered to control this noise, some to mention like proper gear macro design, microgeometry corrections, and housing compliance. However, identifying the appropriate variable as a measure of contribution to the overall response helps in getting more accurate remedial solutions. Some outputs to track are different harmonic components of TE, temperature effects, components of forces, rim compliance and friction.
For evaluation, usually, the amplitudes of individual harmonics of transmission error are related to the respective orders of the noise levels assuming it as one of the primary excitation parameters of gear noise. In this paper, a brief overview of TE and its harmonic distribution is discussed with the example of an ideal gear mesh model and then quantifying TE with the introduction of mesh misalignment. The effect of providing additional microgeometry corrections to compensate for the misalignment is also discussed.
The study in this paper discusses the influence of parameters that are associated with gear whine and will serve as a guideline for the optimizing the gear design. The analysis was performed on a simple external helical gear mesh model in LDP tool for generating loads and TE. Moreover, the radiated noise from the flexible housing was also monitored to study the influence of different parameters on the sound power levels. Some additional results were evaluated with an in-house developed tool as well. The studies performed in this paper will help in identifying the parameters for transmission durability & NVH also their importance in designing quiet and robust gearbox.
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Dewangan, Y., Nair, P., and Nair, D., "Gear System Parameters and Its Influence on Gearbox Noise," SAE Technical Paper 2019-01-1562, 2019, https://doi.org/10.4271/2019-01-1562.Data Sets - Support Documents
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References
- Welbourn , D.B. Fundamental Knowledge of Gear Noise - A Survey Proc. Noise & Vib. Of Eng. and Trans., I Mech E. Cranfield, UK 1979 9 14
- Henriksson , M. 2009
- Akerblom , M. 2008
- Yildirim , N. , Gasparini , G. , and Sartori , S. An Improvement on Helicopter Transmission Performance through Use of High Contact Ratio Spur Gears with Suitable Profile Modification Design Proc. IMechE Part G: Journal of Aerospace Engineering 222 1193 1210 2008
- Vedmar , L. and Andersson , A. A Method to Determine Dynamic Loads on Spur Gear Teeth and on Bearings Journal of Sound and Vibration 267 3 1065 1084 2003
- Amabili , M. and Fregolent , A. A Method to Identify Modal Parameters and Gear Errors by Vibrations of a Spur Gear Pair Journal of Sound and Vibration 214 2 339 357 1998
- Velex , P. and Ajmi , M. On the Modelling of Excitations in Geared Systems by Transmission Errors Journal of Sound and Vibration 290 2 882 909 2006
- Singh , R. Gear Noise: Anatomy, Prediction and Solutions Inter-Noise 2009 2009
- Ganti , V. , Dewangan , Y. , Arvariya , S. , and Madhavan , S. Influence of Micro-Geometry on Gear Scuffing SAE Technical Paper 2015-26-0187 2015 10.4271/2015-26-0187
- Zhong Z. , Jiang Z. , Long Y. , and Zhan X. Analysis on the Noise for the Different Gearboxes of the Heavy Truck Shock and Vibration 2015 2015
- Chung , C. , Steyer , G. , Abe , T. , Clapper , M. et al. Gear Noise Reduction through Transmission Error Control and Gear Blank Dynamic Tuning SAE Technical Paper 1999-01-1766 1999 10.4271/1999-01-1766
- Velex P. , Maatar M. A Mathematical Model for Analysing the Influence of Shape Deviations and Mounting Errors on Gear Dynamic Behavior Journal of Sound and Vibration 1996 191 5 629
- Kahraman , A. and Blankenship , G.W. Effect of Involute Contact Ratio on Spur Gear Dynamics [J] Journal of Mechanical Design. Des. 121 112 118 1999
- Kato , M. , Inoue , K. , Shibata , K. et al. Evaluation of Sound Power Radiated by a Gearbox Proc. Inter Gearing’94 1994 69 74
- Choy , F.K. , Qian , W. et al. Vibration and Noise Analysis of a Gear Transmission System 29th Joint Propulsion Conference and Exhibit 1993
- Henriksson , M. Analysis of Gear Noise and Dynamic Transmission Error Measurements ASME IMECE04
- Feng , L. , Henriksson , M. , and Parssinen , M. On Model of Gearbox Noise and Dynamic Transmission Error ICSV12