On Transmission Error, Shuttling Forces and Friction Forces as Gear Noise Excitation
(English)In: International Journal of Acoustics and VibrationArticle in journal (Other academic) Submitted
Traditionally, transmission error (TE) has been used to asses the noise propertiesof gears. Measurements of gear noise for a complete truck gearbox have been used tocorrelate noise from a gear pair with calculated static transmission error, shuttling forceand friction forces. Two gear pairs with very similar macro geometry but differentmicro geometry was used. The measurement results show that there is a limitationif transmission error is considered as the only excitation mechanism when designingquiet gears. Often TE is multiplied with the gear mesh stiffness in order to calculatean excitation force. For gear not operating above the critical gear mesh resonance,this often overestimates the importance of TE, thus underestimating the importance ofother sources such as shuttling and friction forces.
IdentifiersURN: urn:nbn:se:kth:diva-11856OAI: oai:DiVA.org:kth-11856DiVA: diva2:285658
QS 201203262010-01-122010-01-122012-03-26Bibliographically approved