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Experimental analysis of the dynamic noise behavior of a two-stage cylindrical gearbox

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Abstract

There are several objectives in the design phase of gears: Besides a sufficient load capacity and a high efficiency of the gearbox, the acoustic behavior has to be taken into account. For a single-stage gearbox, several research projects have been carried out regarding the improvement of the noise behavior. Because of the mutual interactions between the gear meshes at a multi-stage gearbox, the knowledge at single-stage gearboxes cannot be transferred without restrictions. In this report, experimental investigations are carried out on a two-stage test gearbox. The experimental tests are analyzed by means of the stiffness of the intermediate shaft and the number of teeth of the two gear stages. The noise generation process will be investigated by the measured signals along the machine acoustic noise generation process. First, the excitation behavior of the gear mesh is analyzed by the detected rotational acceleration using angular rotation measurement systems. Subsequently, the transfer path between the gear meshes is determined to evaluate the mutual interactions between source and receiver. Based on the results, a guideline will be provided which stage has to be focused during the design phase.

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Acknowledgements

The authors would like to thank the German Research Foundation (DFG) for funding the research project “Entwicklung einer Methode zur Geräuschoptimierung zweistufiger Getriebe unter Berücksichtigung dynamischer Zusammenhänge” (BR 2905/66-1).

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  1. Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University, Steinbachstr. 19, 52074, Aachen, Germany

    Christian Brecher, Marius Schroers & Christoph Löpenhaus

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  1. Christian Brecher
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  2. Marius Schroers
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  3. Christoph Löpenhaus
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Correspondence to Marius Schroers.

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Brecher, C., Schroers, M. & Löpenhaus, C. Experimental analysis of the dynamic noise behavior of a two-stage cylindrical gearbox. Prod. Eng. Res. Devel. 11, 695–702 (2017). https://doi.org/10.1007/s11740-017-0775-y

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  • DOI: https://doi.org/10.1007/s11740-017-0775-y

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