ウェルドボンド接合箱型断面部材の振動減衰特性

概要

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Since weld-bonded and bonded structures exhibit higher performances than spot-welded structures, they can be used to reduce the weight of car body structures. In this paper, a dissipated strain energy method is applied to predict loss factors and natural frequencies of weld-bonded and bonded box section members. For comparison with numerical results, an experimental study for measuring the loss factor and the natural frequency of double-hat-type box section members was carried out using an impulse-frequency response technique. Good agreement obtained between the numerical and the experimental results indicates that the analytical methods developed here are satisfactory for predicting the loss factor and the natural frequency. Furthermore, the change in the loss factor and the natural frequency with spot welding pitch and thickness of the adhesive layer is examined. It is found that the loss factor of the weldbonded box section members does not depend on spot welding pitch and is higher than those of the spotwelded box section members.
社団法人日本機械学会の論文
1995-10-25