スポット溶接によるフレーム材のねじり剛性の評価法 : 第1報, 有限要素法による簡単化されたねじり剛性解析

概要

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The control of vibration level to which an operator is exposed is the focus of recent attention towards the improvement of quality of vehicle-type construction machinery. Especially in the stage of the concept design for this type of machinery, designers have been investigating the vibrational dynamic behavior of a cab using simplified finite elements to reduce the vibration level to which the operator is exposed. However, because the cab has been formed by spot-welded and pressed thin steel plates, and designers have not been able to evaluate its torsional rigidity precisely without an experimental approach, evaluation errors in the model have been a hindrance to the devolopment of a cab from the view point of vibration control and reliability. Therefore evaluation techniques are required in the engineering field of cab design to establish and appropriate model of its struture. In this paper, we tried to use finite element method in order to compute the torsional rigidity values of some spot-welded frames. As a result, it was made clear that its method was useful.
一般社団法人日本機械学会の論文
1996-08-25