Minibus muffler design and optimization based on GT-Power software

作者：Yan Fu Wu; Yang Lun^*; Liu Zhi En; Huang Heng

来源：Chinese Internal Combustion Engine Engineering, 2010, 31(2): 64-67.

• Aerodynamic performance
• Calculating time
• Coupled models
• Design requirements
• Muffler design
• Muffler performance simulation
• Performance simulation
• Power IC
• Pressure loss
• Simulation model
• Working process

The GT-Power software was used to design and optimize the CN100 muffler. The acoustic and aerodynamic performance simulations were carried out by establishing the working process model of engine and the simulation model of muffler. In the coupled model, the insertion loss and pressure loss can be calculated at the same time and the calculating time is shortened. By means of performance simulation and experiment, the tail pipe noise of modified muffler is reduced by 6.4dB (A), which achieves the exhaust design requirement.

• 出版日期2010