Static Force Calculation and Optimization of Excavator Structural Components

Abstract

The main objective of this paper is to validate the existing design and redesign the attachments by analyses which are failing under the given operating conditions. During operation of excavator at different positions the stresses induced in the attachments varies. A FEA has been carried out to understand the behavior of the structure. The forces applied in the analysis were calculated by using MathCAD and Design View (DV) software. Finite element analysis of the attachments is done by using Ansys Workbench 11.0.The FEA result of the Dipper/Arm, boom and bucket shows high stress in some regions. For reducing stresses, some design change and also plate thickness of attachments is changed. After this changes the stress in the attachment are coming under allowable limit.