Journal
INTERNATIONAL JOURNAL OF HEAVY VEHICLE SYSTEMS
Volume 28, Issue 5, Pages 585-611Publisher
INDERSCIENCE ENTERPRISES LTD
DOI: 10.1504/IJHVS.2021.120912
Keywords
torsional vibrations; powertrain; driveline; heavy-duty truck; dual mass flywheel; DMF; dual mass flywheel; resonances; simulation
Funding
- Swedish Energy Agency [42100-1]
- AB Volvo
- Scania CV AB
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This paper investigates steady-state torsional vibrations in a heavy-duty truck powertrain, focusing on engine-excited vibrations at high load. By studying conventional heavy-duty powertrains and powertrains equipped with dual mass flywheels, it is shown that the use of a dual mass flywheel can enable down-speeding and increased engine torque while maintaining or reducing levels of torsional vibrations.
Many of the measures taken to improve combustion engine efficiency lead to higher torsional vibrations. For heavy-duty commercial vehicles it is foreseen that the conventional flywheel and clutch will not be able to sufficiently reduce those increased engine torsional vibrations to the driveline. In this paper, the steady-state torsional vibrations in a heavy-duty truck powertrain are studied. The focus is engine excited vibrations at high load within operating speed range. Vibration phenomena in a conventional heavy-duty powertrain and in powertrains equipped with dual mass flywheels are studied. It is shown how the use of a dual mass flywheel can enable down-speeding and increased engine torque with maintained or reduced levels of torsional vibrations.
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