風流れ改善によるワンボックスカーのミラーびびり振動低減

概要

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In recent years, the level of dynamic quality of one box-car required to be the same as that of a passenger car. To meet this requirement, various vibration problems have to be examined. In this paper, among them the problem of mirror image vibrations is considered. As compared with a passenger car, the outer mirror of a one-box-car is larger is shape and thinner in depth, and is attached at more forward position. Due to these, mirror image vibrations are severer in a one-box-car than in a passenger car. To find a way to reduce the vibrations, we first studied the characters of the mirror vibrations by modal analysis. Then we studied the velocity distribution of wind around the mirror by PIV (Particle Image Velocimetry) technique. Based on these studies, we proposed a better form of the mirror, which reduced the mirror image vibrations.
一般社団法人日本機械学会の論文
2001-10-25