Design of Racing Car Muffler in FSAE Based on GT-Power

Abstract

Muffler plays a very important role in the internal combustion engine vehicle, and plays a key role in reducing noise. Formula SAE (FSAE) also has strict rules for noise, so the proper muffler is very important. Using GT-Power series software to optimize the internal structure of muffler is a common solution at present. Through the cooperation of resistance structure and resistance structure, noise loss can reach 20%, and finally the design scheme meeting the target is obtained. At the same time, the resistive structure is conducive to improve the exhaust back pressure, so as to improve the torque output of the vehicle at low speed. Through the simulation analysis of the software and the coupling analysis of dynamic performance and noise value, a muffler suitable for FSAE can be obtained.