Abstract
Enhanced efficiency of heavy-duty truck powertrains with constraints imposed on noise, vibration, and harshness requires novel solutions for torsion vibrations attenuation. In the paper, the weight-vibration Pareto optimization problem for a novel vibration absorber, a triple mass flywheel, for application in heavy-duty truck powertrains is considered. Global sensitivity analysis and Pareto optimization method are used to design a novel vibration absorber. The optimization method attempts to minimize oscillations of the torque at the transmission input shaft as well as to minimize total mass inertia of the absorber. It is shown that there exists a Pareto front between the measure of the attenuation of oscillations of the torque and the total mass inertia of a triple mass flywheel. The optimized design parameters for the absorber are obtained that provide the best attenuation of oscillations of the torque at the transmission input shaft for different mean values of the engine driving torque. The analysis shows real evidence of the feasibility of the application of this concept of vibration absorbers in heavy-duty truck powertrains. It is also shown that optimized design parameters of a triple mass flywheel put this concept in a superior position in comparison with a dual mass flywheel.
Highlights
The demand for higher efficiency of vehicle powertrain systems requires the development of novel drivetrain functional components
F1 (d∗ ) for the ptsTMF and the dual mass flywheel (DMF) (Tables 1 and 2), the use of the optimized in the drivetrain in the drivetrain system improves up to 20% the attenuation of the oscillations of the torque at the system improves up to 20% the attenuation of the oscillations of the torque at the transmission input transmission input shaft in comparison with the attenuation of the oscillations of the torque in the shaft in comparison with the attenuation of the oscillations of the torque in the case of using the case of using the optimized DMF
The results obtained demonstrate the efficiency of the methodology based on global sensitivity analysis and Pareto optimization for the design of novel multiple-mass torsional vibration absorbers for vehicle powertrains
Summary
The demand for higher efficiency of vehicle powertrain systems requires the development of novel drivetrain functional components. 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]. 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. 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. Pareto optimization (WV-PO) problem of torsional vibration absorbers for application in heavy-duty truck powertrains. The paper is finalized with conclusions and an outline of future research
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