Simulation of the Geometry Influence on Curvic Coupled Engagement
Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
The thesis is performed in order to improve the curvic coupled engagement of a dog
clutch situated in the transfer case of a truck. The dog clutch is used to engage the so
called all-wheel-drive system of the truck. If the driver tries to engage the all-wheel-drive
when truck’s rear wheels already skid, due to a slippery surface a relative rotational
speed in the dog clutch will occur. This relative rotational speed will cause the dog clutch
to bounce back of itself before engagement, or to not engage at all.
The dog clutch has been redesigned to prevent this. Dynamic simulations using MD
Adams have been made for the existing model, for the models created in previous
works, and for the new model in order to figure out which of them will show the most
stable engagement, at high relative rotational speed.
The implemented simulations show that better results can be obtained. Separation into
two parts of the disc pushed by the fork, shows that dog clutch’s engagement is faster
and more stable, comparing to the original model and the other created models. The new
model shows better coupling in the whole range of the relative rotational speed from 50
up to 120rpm.
Place, publisher, year, edition, pages
2010. , 21 p.
Gleason Type Curvic Coupling, Dog clutch, All-wheel-drive, Multibody Dynamics
IdentifiersURN: urn:nbn:se:lnu:diva-27291OAI: oai:DiVA.org:lnu-27291DiVA: diva2:634197
SwePart AB, Liatorp
Subject / course
Mechanical Engineering, Master Programme, 60 credits
Khoshaba, Samir, UnviersitetsadjunktLinderholt, Andreas, Lektor