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Numerical Methods to Calculate Gear Transmission Noise
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English
Abstract
This report shows the methods, which AVL uses for the calculation of gear box noise.
The analysis of the gear box structure (housing) is done using finite element method (FEM), thereby the natural frequencies are calculated as well as forced vibrations.
As input for the FE calculation of the forced vibrations, the dynamic bearing forces of the shafts in the gear box or the dynamic tooth mesh are used. These forces are determined using the MBS (multi body system) software GTDYN, considering the torsional vibrations as well as axial and bending vibrations.
Several examples of calculation results for the investigation of the gear dynamics are shown within the scope of this report.
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Citation
Hellinger, W., Raffel, H., and Rainer, G., "Numerical Methods to Calculate Gear Transmission Noise," SAE Technical Paper 971965, 1997, https://doi.org/10.4271/971965.Also In
References
- Rust, A. Brandl, F.K. Thien, G.E. “Investigations into Gear Rattle Phenomena - Key Parameters and their Influence on Gearbox Noise” First International Conference on Gearbox Noise and Vibration Cambridge 1990
- Priebsch, H.H. Hellinger, W. Loibnegger, B. Rainer, G.Ph. “Application of Computer Simulation for the Prediction of Vibration and Noise in Engines” ATA 3rd Int. Conference Firenze 1992
- Priebsch, H.H. Affenzeller, J. Kuipers, G “Structure Borne Noise Prediction Techniques” SAE-Paper 900019 1990
- Rainer, G.Ph. Loibnegger, B. “Design Supporting Analysis for Powertrain Noise and Vibration” IiM-Conference Vienna 1995
- Hellinger W. Priebsch, H.H. Rainer, G.Ph. Tzivanopoulos, G. Wien 1995
- EXCITE User Manual Graz 1996
- GTDYN User Manual Graz 1995