Dynamic Strength Analysis for Hydraulic Excavators
2007
This report presents a nonlinear dynamic analysis of hydraulic excavators using a component mode synthesis method with retransformed physical coordinates. After the vehicle structure is modeled with the finite element method, the FE model is transformed to a superelement using a component mode synthesis method. This method, when applied to the rough road traveling test and the cabin bench test, enables the accurate evaluation of dynamic stress on the structure being studied. This simulation technique, when performed in an advanced design stage, allows the speedy development of new products.
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