As the heavy-duty combustion engine development goes towards lower rotational speeds and higher cylinder pressures, the torsional vibrations increase. There is therefore a need to identify and study new types of vibration absorbers that can reduce the level of torsional vibrations transmitted from the engine to the gearbox. In this work, the concept of a dual-mass flywheel combined with a tuned vibration absorber is analysed. The tuned vibration absorber efficiently reduces the vibration amplitudes for engine load frequencies near the tuning frequency, but it also introduces an additional resonance into the system. By placing the tuned vibration absorber on an intermediate flange between the two dual-mass flywheels, the introduced resonance frequency will be lower than the tuning frequency and a resonance in operating engine speed range can be avoided. Numerical simulations are used to show how the torsional vibration amplitudes in a heavy-duty truck powertrain are affected by the tuned vibration absorber and how the different parameters of the tuned vibration absorber and the dual-mass flywheel affect the torsional vibrations and the resonance frequencies.
Dual-mass flywheels with tuned vibration absorbers for application in heavy-duty truck powertrains
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering ; 234 , 10-11 ; 2500-2508
2020-09-01
9 pages
Article (Journal)
Electronic Resource
English
Analysis of power split vibration absorber performance in heavy-duty truck powertrains
SAGE Publications | 2020
|Optimum Design of Flexible Flywheels Used in the Powertrains of Automobiles
Trans Tech Publications | 2020
|Dynamic absorbers for modern powertrains
Automotive engineering | 2011
|Dynamic Absorbers for Modern Powertrains
British Library Conference Proceedings | 2011
|