Automobile warm core water flow sound prediction method

• Main Authors: XU GAOXIN, TU DI, CHEN QINGSHUANG, AI HONGGEN, ZOU ZHIHUI, ZHONG CHENGPING, HONG YOUMING
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2022
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an automobile warm core water flow sound prediction method, which comprises the following steps of: establishing a rack to simulate the running state of a whole automobile in the early stage of automobile development, evaluating whether the automobile warm core has water flow sound or not, and connecting a cooling system and an air conditioner warm core with an engine according to design coordinates on an engine performance rack to form a complete system; a water flow sound recognition device is arranged right in front of the warm core shell and points to the warm core shell, and the rear end of a microphone is connected with a data acquisition device; the cooling liquid is injected to the designed volume, and air remaining in the system is discharged into the atmosphere; after filling of the cooling liquid is completed, the engine is flamed out and stands till the temperature of the cooling liquid is reduced to the environment temperature, and the engine is in a cold state; normal wor