| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a noise estimating device and a noise estimating method which enable estimating the amount of noise radiated by vibration of a structure, while reducing a processing cost of acoustic analysis processing. <P>SOLUTION: A noise estimating device 100 comprises a vibration analyzing portion 10 for analyzing vibration of a tire model, and an acoustic analysing portion 20 for analysing noise generated by the vibration of the tire model. The acoustic analysing portion 20 comprises an identifying portion 21 for specifying a vibration displacement area sandwiched by intersection points between a surface of the tire model in a vibration state and the surface of the tire model in a nonvibration state, and identifying a vibration wavelength of the vibration displacement area; and a calculating portion 22 for calculating the amount of noise radiated from the vibration displacement area, on the basis of the vibration wavelength identified by the identifying portion 21. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
