In view of the problem of power reduction caused by the addition restrictor valve for engine of FSAE cars,the optimization and design of the GSX R600 engine intake system of the Formula racing car from Xi'an Aeronautical Institute was researched.Based on the competition rules and basic parameters of the engine,the arrangement form of intake system and related parameters of intake tube,pressure regulator chamber,and intake manifold were determined.Meanwhile,the three-dimensional model of intake system was established by using CATIA software.The fluid dynamics analysis of velocity,pressure and mass flow rate were conducted by using ANSYS Fluent software.The simulation results demonstrated that the performance of designed intake system was superior to the last season.To further improve the intake uniformity and increase the charging efficiency,the interface shape between the intake manifold and pressure regulator chamber was optimized,compared with the previous intake system,the mass flow rate was improved by 2.6 g/s,and the standard deviation of four intake manifolds was reduced by 50.17%.
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