Assembled lightweight camshafts mounted on rolling bearings
Completed Research Project

Aim

• Reduction of friction losses in the motor
• Reduction of fuel consumption, especially in urban traffic
• Reduction of the process cost to make up for the additional effort for the rolling bearing
• Integration of further functionalities, such as concentric camshafts or cylinder deactivation

Approach

Determining the dynamic strain on the camshaft

• Development of an MKS model
• Calculation of characteristcs of cam forces, torques and bending moment loads
• Determination of the torques which are transmitted through the cams because of resonance vibrations of the camshaft
• Calculation of the forces acting on the camshaft bearing
• Determination of the maximum inclinations of the camshaft under the bearing

Durability of the bearing

• Separate calculation of the damage on the rolling elements, the inner and the outer ring
• Comparison with catalogue data

Design of the fits for the press-fit connection cam-shaft