Title :
Simulation of the autobody aerodynamics for car interior noise control
Author :
Chen, Xin ; Wang, Dengfeng ; Wu, Yunzhu ; Ma, Zheng-Dong
Author_Institution :
State Key Lab. of Automobile Dynamic Simulation, Jilin Univ., Changchun, China
Abstract :
For the analysis of car interior noise at high speed, the influence of autobody aerodynamics should be taken into account, besides the vibration and acoustic radiation of powertrain, the random excitation from road and the vibration inputs of tires, and so on. A model of CFD was built. And the most turbulent area of autobody surfaces was located. The spectrum of average aerodynamic pressure of monitoring points on front door window was also obtained by unsteady calculation. So, the more accurate analysis of car interior noise can be processed due to loading the power inputs listed above to the simulation model, which is looked as the foundation of further optimization of car interior noise control.
Keywords :
aeroacoustics; aerodynamics; automotive components; computational fluid dynamics; flow simulation; noise abatement; turbulence; vehicle dynamics; CFD; aeroacoustics; autobody aerodynamics; average aerodynamic pressure; car interior noise control; turbulent area; vibration; Acoustic noise; Aerodynamics; Analytical models; Boundary conditions; Computational fluid dynamics; Computational modeling; Computer displays; Equations; Mesh generation; Vibration control; Aerodynamics; CFD; Car Interior Noise;
Conference_Titel :
Computer-Aided Industrial Design & Conceptual Design, 2009. CAID & CD 2009. IEEE 10th International Conference on
Conference_Location :
Wenzhou
Print_ISBN :
978-1-4244-5266-8
Electronic_ISBN :
978-1-4244-5268-2
DOI :
10.1109/CAIDCD.2009.5374855
