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Damper Systems

Best-in-Class Dampers for Every Driveline Concept

I. Introduction

II. Refinement of the centrifugal pendulum-type absorber

Figure 1 Schaeffler production of centrifugal pendulum-type absorbers per year for manual transmissions and double-clutch transmissions (left) as well as automatic transmissions (right)

Figure 2 Applications for the centrifugal pendulum-type absorber in the DMF (left) and other applications (right) on the clutch disk, in the single mass flywheel  and as a double CPA in an automatic transmission converter

Figure 3 Basic simulation for optimization of the guide track curvature of the pendulum and the flange in combination with the roller diameter using the example of an CPA without (top) and with (bottom) spring elements between the pendulums (couple pendulum)

Figure 4 Design of an internal CPA with W stop damper (left) as well as tangential connecting elements on the pendulums (couple pendulum, right)

Figure 5 Design of an CPA with U pendulum (left) and an iso-radial pendulum (right)

Figure 6 Basic simulation for optimization of the guide track curvature of the pendulum and the flange in combination with the roller diameter using the example of an CPA on the clutch disk without (top) and with (bottom) friction elements

Figure 7 The distance between the rollers with multiple pendulum motions (left) and inserted friction elements for roller stabilization (right)

Figure 8 Reversed small radial damper (RSRD) with CPA and flywheel on front end of the crankshaft

III. New approaches to vibration damping

Figure 9 Various operating principles for damping vibrations

Figure 10 Implementation of the anti-resonance principle using the example of a damper

Figure 11 Theoretical potential of the CPA in the redistribution of the mass down to a reduction of the total mass of the damper system

Figure 12 Operating principle of the damper on the intermediate flange: Achievement of an anti-resonance without interfering resonance in a higher speed range

Figure 13 Placing a damper on an intermediate flange to utilize anti-resonance

IV. Summary

The digital version of the Schaeffler Symposium 2018 “Mobility for Tomorrow” conference transcript