某车型加装非标准尾喉对整车热管理的影响OA

This study investigates a typical case of rear bumper melting caused by retrofitting a non-stand-ard exhaust tail tip on a production vehicle.Using the control variable method,real-vehicle road tests were conducted to quantitatively analyze the impact of the non-standard tail tip on local thermal management of the whole vehicle.The results show that after installation,the temperature at critical measurement points increases from 67℃to 117℃,representing a rise of 74.6%—far exceeding the heat resistance limit of the surrounding materials.From the perspectives of heat transfer and fluid mechanics,the mechanism analysis reveals that the non-standard component disrupts the original flow field and thermal balance of the vehicle's exhaust system.This study provides an empirical basis for thermal safety control in aftermarket vehicle modifications.