Title:
AUTOMOBILE PANEL-COMPONENT VIBRATION/NOISE REDUCTION ANALYSIS DEVICE AND ANALYSIS METHOD
Document Type and Number:
WIPO Patent Application WO/2022/004087
Kind Code:
A1
Abstract:
The present invention includes: acquiring a body model 200 (13); setting a plurality of segmented regions for the body model 200 (15); setting a panel-component model subject to vibration/noise reduction (17); selecting a vibration mode and a peak frequency for equivalent radiated power for the panel-component model subject to vibration/noise reduction by vibration analysis of the body model 200 (19); modifying the weight of one or more segmented regions and acquiring the peak frequency of the equivalent radiated power for the panel-component model subject to vibration/noise reduction (21); calculating a degree of contribution of the weights of the respective segmented regions to the acquired peak frequency of equivalent radiated power (S23); and identifying a site for reducing the weight of the body in order to reduce vibration/noise from the panel components of the automobile on the basis of the degrees of contribution of the weights of the segmented regions (25).
Inventors:
NAKAGAWA KOICHI (JP)
SAITO TAKANOBU (JP)
SHIOZAKI TSUYOSHI (JP)
SAITO TAKANOBU (JP)
SHIOZAKI TSUYOSHI (JP)
Application Number:
PCT/JP2021/014571
Publication Date:
January 06, 2022
Filing Date:
April 06, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
G06F30/20; B62D25/00; G06F30/15
Domestic Patent References:
| WO2020070922A1 | 2020-04-09 |
Foreign References:
| JP2010230584A | 2010-10-14 | |||
| JP2019114114A | 2019-07-11 | |||
| JP2007186086A | 2007-07-26 |
Other References:
See also references of EP 4148611A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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