TY  - JOUR
PY  - 2021//
TI  - Identification of the rear door opening noise in a passenger car
JO  - International journal of automotive technology
A1  - Sim, Woojeong
A1  - Kim, Jaewon
A1  - Lee, Sang-soo
A1  - Lee, Booyoung
A1  - Yun, Young-uk
A1  - Chung, Jintai
SP  - 213
EP  - 220
VL  - 22
IS  - 1
N2  - 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>
LA  - en
SN  - 1229-9138
UR  - http://dx.doi.org/10.1007/s12239-021-0021-7
ID  - ref1
ER  -