0205 結合部自由度の座標変換による振動伝達特性の解析法(J18-1 機械と環境の振動評価,低減技術(1),J18 機械と環境の振動・騒音評価,低減技術の新展開)

概要

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In the automobile development, it is important to understand the vibration transfer characteristic of automotive body structure to establish countermeasures efficiently. However it is difficult because of many substructures are assembled complexly. In this paper, an analytical technique is proposed to raise the efficiency of the vibration transfer analysis. The vibration transfer is examined based on the contribution to response of transmitted forces on cross-section of automobile framework. The analytical degree of freedom (DOF) is transformed to the modal coordinates, and the transmitted forces are expressed on new coordinates. By using the new transmitted force, the contribution to response of cross-section deformation is calculated. The proposed method enables the analyst to understand the vibration characteristic and draw countermeasures effectively.
社団法人日本機械学会の論文
2007-09-07