Abstract
The finite element model using the simple beam element is proposed in order to predict the vibration from the stage of conceptual design of the construction equipment cab, and it carries out the improvement in the development initial stage, for the frame part, the torsional rigidity of the spot-welded frames was evaluated by simplified estimation method in order to calculate its value. And, the panel part in the cab constitutes the frame-panel structure by the spot welding. Second, in order to express the frame-panel structure by the spot welding well and be possible to use easily without depending on the experience in the design field, the model which replaced the panel part with the beam element was proposed. Finally, to verify that the finite element model of the cab using the beam element which can carry out the modeling without depending on the experience proposed in this study is possible to be applied to both the strength design and dynamic design, the structure analysis and the eigenvalue analysis were carried out. Consequently, the effectiveness of this model was confirmed by comparing these analysis results with experimental result.
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