The paper reviews the development and optimization of a SI high performance engine, to be used in Formula SAE/Student competitions. The base engine is a single cylinder Yamaha 660cc motorcycle unit, rated at about 48 HP at 6000rpm. Besides the reduction of engine capacity to 600cc and the mounting of the required restrictor, mechanical supercharging has been adopted in order to boost performance. The fluid-dynamic optimization of the engine system has been performed by means of 1D-CFD simulation, coupled to a single-objective genetic algorithm, developed by the authors. The optimization results have been compared to the ones obtained by a well known commercial optimization software, finding a good agreement. Experiments at the brake dynamometer have been carried out, in order to support engine modeling and to demonstrate the reliability of the optimization process. Copyright © 2009 SAE International.
Optimization of a supercharged single cylinder engine for a formula SAE racing car / Mattarelli, E.; Perini, F.; Rinaldini, C. A.. - In: SAE TECHNICAL PAPER. - ISSN 0148-7191. - 2:1(2009), pp. 199-210. (Intervento presentato al convegno SAE World Congress & Exhibition) [10.4271/2009-01-0309].
Optimization of a supercharged single cylinder engine for a formula SAE racing car
Mattarelli E.;Perini F.;Rinaldini C. A.
2009
Abstract
The paper reviews the development and optimization of a SI high performance engine, to be used in Formula SAE/Student competitions. The base engine is a single cylinder Yamaha 660cc motorcycle unit, rated at about 48 HP at 6000rpm. Besides the reduction of engine capacity to 600cc and the mounting of the required restrictor, mechanical supercharging has been adopted in order to boost performance. The fluid-dynamic optimization of the engine system has been performed by means of 1D-CFD simulation, coupled to a single-objective genetic algorithm, developed by the authors. The optimization results have been compared to the ones obtained by a well known commercial optimization software, finding a good agreement. Experiments at the brake dynamometer have been carried out, in order to support engine modeling and to demonstrate the reliability of the optimization process. Copyright © 2009 SAE International.
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