319 ローラ腰入れされた円板の固有振動数の簡易推定法(モード解析と応用関連技術1)(OS.16 : モード解析と応用関連技術)

概要

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This paper proposes an efficient method for estimating natural frequencies of roll-tensioned disks without eigenvalue analysis, and initial stress stiffness matrices necessary for calculating natural frequencies without stress analysis. The proposed method estimates the natural frequencies after roll-tensioning from the natural frequencies and mode shapes before roll-tensioning and initial stress stiffness matrices by roll-tensioning. The examples show that a small-sized coupled eigenvalue problem is sufficient for an accurate estimation. This is because the mode shapes after roll-tensioning are expressed by the mode shapes before roll-tensioning with the same number of nodal diameters and the different number of nodal circles.
一般社団法人日本機械学会の論文
2001-08-03