Publication detail

Design Concept of a Crankshaft for Reduction of Main Bearings Power Losses and a Deep Skirt Engine Block Load

DRÁPAL, L. VOPAŘIL, J.

English title

Design Concept of a Crankshaft for Reduction of Main Bearings Power Losses and a Deep Skirt Engine Block Load

Type

conference paper

Language

en

Original abstract

This paper presents a method for effective design of the crankshaft counterweights with respect to the engine block load due to inertia effects of the crank train rotating parts. The method finds the relationship between internal product moments of inertia of the crank train and the middle main bearing load, since the middle main bearing area can be highly affected by the dynamic effects especially when the engine operating speed is high. In order to investigate the dynamic response of the excited crank train, a computational model based on Multi-Body System is used. The simulation model contains modally reduced flexible bodies and hydrodynamic submodels of main and crank bearings. Described methodology is applied to an innovative design concept of a crankshaft with reduced main bearing power losses and an engine block load.

English abstract

This paper presents a method for effective design of the crankshaft counterweights with respect to the engine block load due to inertia effects of the crank train rotating parts. The method finds the relationship between internal product moments of inertia of the crank train and the middle main bearing load, since the middle main bearing area can be highly affected by the dynamic effects especially when the engine operating speed is high. In order to investigate the dynamic response of the excited crank train, a computational model based on Multi-Body System is used. The simulation model contains modally reduced flexible bodies and hydrodynamic submodels of main and crank bearings. Described methodology is applied to an innovative design concept of a crankshaft with reduced main bearing power losses and an engine block load.

Keywords in English

Main bearing, Multi-Body System, crankshaft, crank train, hydrodynamic bearing.

Released

05.12.2018

Publisher

Brno University of Technology

Location

Brno

ISBN

978-80-214-5543-6

Book

Proceedings of the 2018 18th International Conference on Mechatronics – Mechatronika (ME) 2018

Edition number

1

Pages from–to

533–536

Pages count

4

BIBTEX


@inproceedings{BUT151915,
  author="Lubomír {Drápal} and Jan {Vopařil},
  title="Design Concept of a Crankshaft for Reduction of Main Bearings Power Losses and a Deep Skirt Engine Block Load",
  booktitle="Proceedings of the 2018 18th International Conference on Mechatronics – Mechatronika (ME) 2018",
  year="2018",
  month="December",
  pages="533--536",
  publisher="Brno University of Technology",
  address="Brno",
  isbn="978-80-214-5543-6"
}