Optimisation of torsional vibration system for a heavy-duty inline six-cylinder diesel engine

Abstract

Torsional vibration is one of the major issues and very important calculation for the safe running of heavy-duty diesel engines, specifically crankshaft. Because of different applications of a heavy-duty diesel engine, different driven machine and different attaching systems are inevitable that affect the torsional system. The cranktrain contains the flywheel and torsional damper. The properties of these parts have significant effect on torsional vibration of the system as well as the crankshaft strength. Initial selection of these properties is usually specified based on engine designer experience and also the torsional vibration calculation of the cranktrain. In this paper, the focus is to find the optimum and reliable operating points for the elements in cranktrain using computer-aided engineering (CAE) tools. These are parameters like tuned mass inertia, flywheel inertia, damper stiffness, damper inertia, damper damping, coupling damping and coupling stiffness. The effect of these parameters on system design criteria, especially crankshaft life, was investigated. The results show high sensitivity of crankshaft safety factor to parameters like tuned mass inertia, damper damping coefficient and damper stiffness. Therefore, damper selection is the most important factor to increase the crankshaft life. The new contribution is that the parameters related to the whole cranktrain system that have the greatest effect were obtained and an optimisation was executed on these parameters to fulfil the vibration targets as well crankshaft life.

Keywords

Torsional vibration cranktrain torsional damper crankshaft strength torsional vibration coupling

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References

Mendes

Meirelles

Zampieri

. Analysis of torsional vibration in internal combustion engines: modelling and experimental validation. Proc IMechE, Part K: J Multi-body Dynamics 2008; 222: 155–178.

Nestorides EJ. A handbook on torsional vibration. British Internal Combustion Engine Research Association (BICERA), London, United Kingdom, 1958.

Wilson

. Practical solution of torsional vibration problems: with examples from marine, electrical, aeronautical, and automobile engineering practice 1956; Vol. 1, UK: Chapman & Hall.

Hafner

Maass

. Theorie der Triebwerksschwingungen der Brennkraft maschine, Wien/New York: Springer-Verlag, 1984.

Chen SK and Chang T. Crankshaft torsional and damping simulation – an update and correlation with test results. SAE transactions. SAE 1986-09-01, 1986, pp.964–985.

Larmi M. Torsional vibration calculation and engine damping. In: Proceedings of international congress on combustion engines (CIMAC), 31 December 1988.

Draminsky

. Secondary resonance and subharmonics in torsional vibrations, Danish Academy of Technical Sciences, Copenhagen, Denmark, 1961.

Pasricha

Carnegie

. Effects of variable inertia on the damped torsional vibrations of diesel engine systems. J Sound Vib 1976; 46: 339–345.

Pasricha

Carnegie

. Formulation of the equations of dynamic motion including the effects of variable inertia on the torsional vibrations in reciprocating engines, part I. J Sound Vib 1979; 66: 181–186.

10.

Hesterman

Stone

. Secondary inertia effects in the torsional vibration of reciprocating engines – a literature review. Proc IMechE, Part C: J Mechanical Engineering Science 1995; 209: 11–15.

11.

Rahnejat

. Multi-body dynamics: vehicles, machines, and mechanisms, New York: Wiley, 1998.

12.

Boysal

Rahnejat

. Torsional vibration analysis of a multi-body single cylinder internal combustion engine model. Appl Math Model 1997; 21: 481–493.

13.

Perkins

. An efficient multi-body dynamics model for internal combustion engine systems. Multibody Syst Dyn 2003; 10: 363–391.

14.

Kushwaha

Gupta

Kelly

, et al. Elasto-multi-body dynamics of a multicylinder internal combustion engine. Proc IMechE, Part K: J Multi-body Dynamics 2002; 216: 281–293.

15.

Desbazeille

Randall

Guillet

, et al. Model-based diagnosis of large diesel engines based on angular speed variations of the crankshaft. Mech Syst Signal Process 2010; 24: 1529–1541.

16.

Han

Lee

Park

. Parametric study to identify the cause of high torsional vibration of the propulsion shaft in the ship. Eng Fail Anal 2016; 59: 334–346.

17.

Guo

, et al. Diesel engine torsional vibration control coupling with speed control system. Mech Syst Signal Process 2017; 94: 1–3.

18.

MSC ADAMS. Documentation and help. Using Adams/Engine, 2005.

19.

AVL List GmbH. AVL excite designer, theory manual. Version 7.0.3. Austria: AVL List GmbH, 2007.

20.

Ebrahimi

Jamil

Wood

. Optimum crankshaft damper selection. Int J Vehicle Noise Vib 2006; 2: 111–124.

21.

Londhe A and Yadav VH. Design and optimization of crankshaft torsional vibration damper for a 4-cylinder 4-stroke engine. SAE 2008-04-14 Technical Paper, 2008.

22.

Milasinovic

Filipovic

Hribernik

. Contribution to the definition of the torsional stiffness of the crankshaft of a diesel engine used in heavy-duty vehicles. Proc IMechE, Part D: J Automobile Engineering 2009; 223: 921–930.

23.

Geislinger damper catalogue. Austria: Geislinger GmbH, 2016.

24.

Hafner

Maass

. Torsion sschwingungen in der Verbrennungskraft maschine, New York: Springer-Verlag, 2013.

25.

Philipp T. Parametric Identification of Torsional Vibration by Modern Measurement and Calculation Methods. In: CIMAC congress, Vienna, Austria, 2007, pp.2–13.

26.

Beards

. Introduction to finite element vibration analysis. Aeronaut J 1999; 103: 486–490.

27.

IACS UR M53:1986. International Association of Classification Societies (IACS) Unified Rules UR-M53 for the calculation of crankshaft design strength assessment for I.C. engines.

28.

Montgomery

. Design and analysis of experiments, New York: John Wiley & Sons, 2017.