Developing Advanced CAE Model for Door Glass Regulator Operating Noise Reduction through TEST/CAE Correlation

The importance of performance improvement and weight optimization using CAE in the early design stages of vehicle development has been continuously increasing over the past two decades. And, the accuracy of CAE models plays key role, more efforts are required to improve it. Representation of exact physical model in CAE is still a big challenge for achieving an accurate TEST vs CAE correlation. In this research, the procedure and application of door system model correlation were described to reduce the glass regulator operating noise. The function of a regulator in door system is to open and close the glass. The regulator under improper design creates unwanted noise and discomfort to the passenger. In current door CAE Model, we are unable to identify this real time problem. Therefore, this paper discusses how to correlate door system model according to the assembly stage based on modal correlation and it helped in calculating accurate glass regulator operating noise. As a result, the correlation level of door system was significantly enhanced compared to the initial model. In future this advanced model will be helpful in identifying regulator operating noise problems in the early stages of Vehicle development so as to reduce weight and cost. Key Word: Door System, Door Glass Regulator Operating Noise, Correlation