Presentation Title

Automotive Powertrain Design for a Formula SAE Collegiate Racing Vehicle

Start Date

November 2016

End Date

November 2016

Location

HUB 302-#27

Type of Presentation

Poster

Abstract

For a 689cc, 2 cylinder, 4 stroke engine, a powertrain system will be designed that follows certain parameters such as, staying under a certain decibel, while increasing performance in race applications. The engine is selected based on the Formula Society of Automotive Engineers (FSAE) rules which specify allowed engine sizes. In order to integrate the engine, the related subsystems will be designed, tested and validated, to assure performance of the engine. The cooling system will having at least a 20-degree F drop from the inlet to the outlet of a cross flow heat exchanger, while considering heat exchanger size and coefficient of heat transfer. It will be designed using empirical data and the Number of Transfer Units method. The Fuel system is designed using empirical data and simulation software. Using fuel flow rates together with computer generated race data, the corresponding fuel system will be designed. The intake system is designed assuming the engine acts like a pump. Equations for pressure drop and cross sectional area for the plenum are used. Then the model is taken through Computational Fluid Dynamics analysis to determine changes in mass flow rates. The exhaust is designed to be below a prescribed decibel limit. Using engine software, acoustic data is generated. Sound Pressure Level spectrums of any frequency above the decibel level can be isolated and an acoustic damper was designed for that frequency. This work will result in a reliable automotive powertrain that meets SAE racing requirements.

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Nov 12th, 4:00 PM Nov 12th, 5:00 PM

Automotive Powertrain Design for a Formula SAE Collegiate Racing Vehicle

HUB 302-#27

For a 689cc, 2 cylinder, 4 stroke engine, a powertrain system will be designed that follows certain parameters such as, staying under a certain decibel, while increasing performance in race applications. The engine is selected based on the Formula Society of Automotive Engineers (FSAE) rules which specify allowed engine sizes. In order to integrate the engine, the related subsystems will be designed, tested and validated, to assure performance of the engine. The cooling system will having at least a 20-degree F drop from the inlet to the outlet of a cross flow heat exchanger, while considering heat exchanger size and coefficient of heat transfer. It will be designed using empirical data and the Number of Transfer Units method. The Fuel system is designed using empirical data and simulation software. Using fuel flow rates together with computer generated race data, the corresponding fuel system will be designed. The intake system is designed assuming the engine acts like a pump. Equations for pressure drop and cross sectional area for the plenum are used. Then the model is taken through Computational Fluid Dynamics analysis to determine changes in mass flow rates. The exhaust is designed to be below a prescribed decibel limit. Using engine software, acoustic data is generated. Sound Pressure Level spectrums of any frequency above the decibel level can be isolated and an acoustic damper was designed for that frequency. This work will result in a reliable automotive powertrain that meets SAE racing requirements.