FEM Analysis of an Amphibious Hydraulic Excavator's Boom and Stick

Force conducted to boom and stick is analyzed by complicated elements divide of FEM, it shows that the more the box section is, the more load is, and Hinge point's force is much more than before. If size isn't be affected, it can be reduced by increasing the sectional area. FEM analysis and design comparison analysis results show that FEM analysis method is feasible to amphibious hydraulic excavator. FEM analysis of results to practical design provides a practical way and means for the process of other construction machinery design analysis.