Dual-mass flywheels with tuned vibration absorbers for application in heavy-duty truck powertrains

Abstract

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.

Nonlinear modeling and torsional vibration analysis of heavy-duty vehicle powertrain system during acceleration

“…The torsional vibration of the powertrain system significantly influences the fatigue life of rotary components and the noise, vibration, and harshness (NVH) performance of the vehicle. [1][2][3][4] Even though the torsional damper is integrated in the clutch, 5 the torsional vibration problems of the powertrain system, such as the driveline shuffle, [6][7][8] clutch judder, [9][10][11][12] gear rattle, 13,14 and powertrain torsional resonance, 15,16 are still encountered under the excitation of the fluctuating torque of the engine. Among the vibration problems above, the powertrain torsional resonance is one of the most harmful, because it not only induces the abnormal 1 vibration and booming noise in the cabin, but also accelerates the fatigue damage of driveline components.…”

Are Single Polymer Network Hydrogels with Chemical and Physical Cross-Links a Promising Dynamic Vibration Absorber Material? A Simulation Model Inquiry

“…Dynamic vibration absorbers are generally a simple and cost effective vibration reduction measure and consist in their simplest form of a mass and spring with natural frequency adjusted to result in a counter force at a desired frequency to reduce the vibrations of the primary vibration system they are attached to. Their application area is found in a wide range since their first patent by Frahm [ 1 ], including earthquake protection of engineering constructions, reduction of human walk induced vibrations of engineering constructions, reduction of wind induced power transmission line vibrations, reduction of driveline vibrations in vehicles and reduction of aircraft and spacecraft vibrations [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. Over the years, the design of dynamic vibration absorbers has evolved in various directions, including multiple, nonlinear, composite, continuous, active and semi-active dynamic vibration absorbers, see, e.g., Refs.…”

Weight-Vibration Pareto Optimization of a Triple Mass Flywheel for Heavy-Duty Truck Powertrains

“…However, increasing demand for a higher efficiency of truck powertrains requires novel solutions. The research is ongoing both in academia as well as in industry to understand if a DMF as well as other multiple-mass absorbers are suitable for application in powertrains of heavy-duty trucks [18][19][20][21][22][23][24]. The idea of tuned Machines 2020, 8, 50 2 of 13 mass damper, successfully used in a variety of engineering applications [25][26][27][28][29], was also applied to modify a DMF performance.…”

“…The idea of tuned Machines 2020, 8, 50 2 of 13 mass damper, successfully used in a variety of engineering applications [25][26][27][28][29], was also applied to modify a DMF performance. In recent work [19,21,22], DMFs with and without a tuned mass damper were studied for application to the powertrain of a heavy-duty truck. It was concluded that an optimally design tuned mass damper could reduce the amplitude of oscillations of the torque at the transmission input shaft more than corresponding conventional DMF.…”

“…Using multiple-mass absorbers, for example, a DMF with a tuned mass damper, a decrease in the level of vibration in heavy-duty truck powertrains is feasible. However, most probably, a larger installation space will be needed for novel absorbers [19,[22][23][24]. The latest calls for optimization of multiple-mass absorbers consider constraints on installation space, weight, reliability, cost, and so on.…”