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Reliable Diesel Engine Design Based on a New Numerical Method
Technical Paper
2005-01-1762
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
On their own market, European car manufacturers must face high constraints, especially in three domains: environmental issues, reliability and development time reduction. For environmental issues, they have to combine fuel economy and low exhaust emissions. Diesel engines are a very cost effective way to reduce fuel consumption. However, to satisfy new standards on exhaust emissions, Diesel particulate filters and NOx traps will be necessary. These devices, associated with downsizing, will severely increase thermal and mechanical loads on engine main parts. Reliability has a great impact on brand image. The competition on this point leads to longer warranty periods and mileage targets, associated with lower failure rates. Development time reduction allows accelerating models renewal, which is also an important factor of competitiveness.
In order to satisfy these three contradictory constraints on Diesel engines development, RENAULT Powertrain engineering division has developed an overall methodology that allows to validate and optimize field reliability during development and before start of production. This paper presents this overall methodology, which combines numerical simulation and experimental characterization. It is then illustrated by examples focused on a recent Diesel engine 16 valves cylinder head.
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Morin, G., Nicouleau-Bourles, E., Simon, F., and Prince, O., "Reliable Diesel Engine Design Based on a New Numerical Method," SAE Technical Paper 2005-01-1762, 2005, https://doi.org/10.4271/2005-01-1762.Also In
References
- Koch F. Maasen F. Deuster U. Low cycle fatigue and aluminium cylinder heads - calculation and measurement of strain in forced operation SAE paper 1999-01-0645
- Bignonet A. Charkaluk E. Thermo-mechanical fatigue in automotive industry International Conference on Temperature-fatigue Interaction, SF2M congress Paris (France) 2001
- Lemaitre J. Chaboche J.L. Mécanique des matériaux solides 1996
- Nicouleau-Bourles E. EL-Mayas N. Massinon D. Cailletaud G. Thermo-mechanical fatigue of aluminium alloys: experimental study THERMAL STRESSES congress Cracow (Poland) 1999
- Nicouleau-Bourles E. Morin G. Thermo-mechanical fatigue of automotive engine cylinder heads The evolution of product simulation, NAFEMS World Congress Como (Italy) 2001
- Nicouleau-Bourles E. Feyel F. Quilici S. Cailletaud G. Structural calculation and lifetime prediction in thermo-mechanical fatigue of engine components International Conference on Temperature-fatigue Interaction, SF2M congress Paris (France) 2001
- Azzouz F. Cailletaud G. Foerch R. Morin G. Quilici S. Ragot P. Identification of visco-plastic constitutive and creep-fatigue damage coefficients to use in ABAQUS automotive structural calculations with the Zmat library ABAQUS Users' Conference Newport (USA) 2002
- Masuishi M. Endo T. Fatigue of metals subjected to varying stresses Japan Society of Mechanical Engineers 1968
- Thoft-Cristensen P. Application of structural systems reliability theory SPRINGER-VERLAG
- Pendola M. Morin G. Mohamed A. Ragot P. Reliability based analysis of exhaust manifold lifetime - Simulation: an essential tool for risk management in industrial product development, SIA congress Poissy (France) 2003