Abstract
Clutch disc transmits the torque by frictional forces from the engine to transmission. For this purpose, clutch disc includes some components such a Belleville spring to provide vibration dampening. Belleville springs are used in order to perform hysteresis function of disc assembly by creating frictional torque into clutch system. Hysteresis function of disc is needed to absorb oscillations and prevent noise issues. Belleville spring geometrical shape is critically important and it defines load characteristic. A load of Belleville spring mainly depends on dimensions of inner diameter, outer diameter, thickness, angle, and slot dimensions. This study investigates the single and multi-objective optimization methodology in the automotive clutch system design. This novel methodology presents the design development approach to powertrain system components.
Highlights
Clutch provides a temporary connection between engine and gearbox by transmitting engine torque and engine speed in addition to the clutch’s comfort function
Less interest has been seen to Belleville spring as clutch elements, no study has been found about shape optimization of Belleville spring to have target curve under stress constraints
Angle and forming diameter need to be defined firstly since it defines free height which has a big impact on stress characteristic at the finite element calculation stage
Summary
Clutch provides a temporary connection between engine and gearbox by transmitting engine torque and engine speed in addition to the clutch’s comfort function. The behavior of stress and deflection of Belleville spring compared, but no study on clutch Belleville spring has been found about parameter optimization to get the required load and stress values. Performance comparison of Belleville spring under compressive load was investigated between simulation and experimental results They investigated the stress and deflection of the Belleville spring between the experimental method and FEA method. Less interest has been seen to Belleville spring as clutch elements, no study has been found about shape optimization of Belleville spring to have target curve under stress constraints. The Belleville spring is compressed between upper and lower plates by applying displacement in the axial direction. Both sides of the Belleville spring includes cyclic boundary conditions. Fitting of design of experiments is measured with coefficient of determination, r2, calculated as min 0.90 for response functions
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