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Identification of the Rear Door Opening Noise in a Passenger Car

Title
Identification of the Rear Door Opening Noise in a Passenger Car
Author
정진태
Issue Date
2021-02
Publisher
KOREAN SOC AUTOMOTIVE ENGINEERS-KSAE
Citation
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, v. 22, No. 1, Page. 213-220
Abstract
In this study, noises generated when opening the rear door of a vehicle are identified, which has recently been receiving renewed attention in the automotive industry. To confirm the characteristics of door opening noise, the noise and vibrations in a rear quarter panel and a rear outer door panel were measured experimentally. Furthermore, the modal testing on these panels was conducted such that the natural frequencies and mode shapes were extracted. By combining not only a noise signal but also the vibration signals and the results of modal testing, the radiation position of the peak frequencies of the door opening noise was identified. Meanwhile, a multi-body dynamics model was established and simulated for a latch system to find the source of the opening noise, and the results of the simulation were verified through simple experiments. We found that a sudden change in the contact force between a claw in the latch system and a striker excites the rear quarter panel and the rear outer door panel, resulting in a door opening noise. In addition, it was also confirmed that the noise increases with the elastic force caused by a deformation of the weather strip.
URI
https://link.springer.com/article/10.1007/s12239-021-0021-7https://repository.hanyang.ac.kr/handle/20.500.11754/167005
ISSN
1229-9138; 1976–3832
DOI
10.1007/s12239–021–0021–7
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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