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Proceedings Paper

Vibration measurements on a car transmission housing
Author(s): Wolfram Weber; Marco Plieske; Gerhard Brauchle
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Paper Abstract

In view of stricter future statutory requirements concerning noise emissions by motor vehicles, the acoustic optimization of noise emitting components will become increasingly important. Customers complain about transmission noise when for example gears excite individual resonances (eigenfrequencies) of the transmission housing. Normally the eigenfrequencies and also the excitation frequencies are not moveable out of narrow limits. Therefore, in addition to optimizing gear geometry, the transmission housing must be designed so that dynamic forces acting through the gears onto the shaft bearing points lead to minimum level of radiated sound power from the transmission housing. For this reason, the resonance vibration shapes induced on a car transmission under operating conditions were measured using the laser-transmission test rig. Additionally, a comparison was made between the inspection of an empty transmission housing (using finite element calculation and experimental modal analysis).

Paper Details

Date Published: 8 September 1994
PDF: 12 pages
Proc. SPIE 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (8 September 1994); doi: 10.1117/12.185309
Show Author Affiliations
Wolfram Weber, ZF Friedrichshafen AG (Germany)
Marco Plieske, ZF Friedrichshafen AG (Germany)
Gerhard Brauchle, ZF Friedrichshafen AG (Germany)

Published in SPIE Proceedings Vol. 2358:
First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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