1206 Numerical Simulation on Side-View Mirror Vibration Induced by Separating Vortices

Kawate, Taiki; Ogawa, Satoshi; Omori, Ittetsu

doi:10.1299/jsmefed.2015._1206-1_

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2016

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“…Unsteady flow simulation and experimental PIV method visualized the flow structure of the mirror wake. Recently, Kawate, Ogawa, and Omori [4]- [6] have so far attempted to clarify aerodynamically induced forces on the mirror surface by separating vortices, based on numerical simulation. However, in addition to the fact that there are few papers regarding mirror vibrations, these papers mentioned above have not yet revealed the mechanism of the mirror vibration caused by aerodynamically induced forces especially in terms of the relationship between input of external forces and output of vibration modes.…”

Section: Introductionmentioning

confidence: 99%

Side-View Mirror Vibrations Induced Aerodynamically by Separating Vortices

Ogawa¹,

Kawate²,

Takeda³

et al. 2016

OJFD

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While driving a car at high speed cruising, the mirror surface of side-view mirrors happens to vibrate. The vibration often leads to image blurs of objects reflected in the mirror. Once the phenomena happen, drivers cannot clearly identify the approaching vehicles from the rear. The paper aims to clarify the vibration modes of side-view mirror experimentally and to capture forces on the mirror surface induced by separating vortices around the mirror numerically. Experimental study clarified two findings. One is that the mirror has the primary natural frequencies

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Section: Introductionmentioning

confidence: 99%