@article{ref1,
title="Identification of the rear door opening noise in a passenger car",
journal="International journal of automotive technology",
year="2021",
author="Sim, Woojeong and Kim, Jaewon and Lee, Sang-soo and Lee, Booyoung and Yun, Young-uk and Chung, Jintai",
volume="22",
number="1",
pages="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.<p /> <p>Language: en</p>",
language="en",
issn="1229-9138",
doi="10.1007/s12239-021-0021-7",
url="http://dx.doi.org/10.1007/s12239-021-0021-7"
}