Development of Estimation Technique for Flow Induced Vibration on External Rearview Mirror

2003-01-2815

10/27/2003

Event
International Body Engineering Conference & Exposition
Authors Abstract
Content
A technique has been developed that uses unsteady flow simulation to evaluate mirror vibration quantitatively at the drawing stage. Studies made in actual driving tests of the contributions of different inputs to mirror vibration have confirmed that the contribution of fluid force is large, so a visualization of the structure of the external rearview mirror wake was done using PIV. The results made it clear that the vibration imparted to the mirror surface by air flow excites the natural vibration mode of the mirror surface, thereby causing the mirror to vibrate. Mirror vibration performance was evaluated by means of unsteady flow simulation using the moment PSD as a substitute characteristic. (The moment PSD was obtained by a frequency analysis of the changes over time in the moment generated in the mirror surface by the fluid force.) The results obtained through CFD show a high degree of correlation with those obtained in actual driving tests.
Meta TagsDetails
DOI
https://doi.org/10.4271/2003-01-2815
Pages
5
Citation
Horinouchi, N., Kato, Y., Kondoh, T., Yamada, T. et al., "Development of Estimation Technique for Flow Induced Vibration on External Rearview Mirror," SAE Technical Paper 2003-01-2815, 2003, https://doi.org/10.4271/2003-01-2815.
Additional Details
Publisher
Published
Oct 27, 2003
Product Code
2003-01-2815
Content Type
Technical Paper
Language
English