Optimum Design of Boom for Lightweight of Movable Crane

Optimum design of movable hydraulic crane's booms for weight reduction was performed in this study. Since the boom weight of the presently used booms is very heavy, it is needed to make them lighter structure as possible as we can. Optimum design was performed for the booms by changing from the hexagonal cross section to triangular truss structure under the conditions, which are the allowable stress for the present cross section must be maintained, and the optimized weight must be minimized. As a results, The optimized weight of the booms is reduced to about 19.88% comparing to the original weight