Boom Buckling Instability Capability Studies

Abstract

Based on the powerful finite element analysis software-ANSYS Workbench co-simulation platform, boom buckling instability capability has been studied by using the seamless interface of DM(Geometry Modeler),Mechanical(Structure Analysis)and DX(Optimization Design)module. Firstly, the trend figure that the thickness of each plate increasing has influenced on the overall buckling limit has been got. Applying the rule, the actual structure was optimized and the optimal combination of thickness was found. Under the condition of the buckling limit, the weight of the crane arm has a significant reduction compared with the actual structure. Finally, this result which is reasonably practicably provides a reference method for engineering mechanism design including large-scale crane arm in the future.

Measuring Deformations in the Telescopic Boom Under Static and Dynamic Load Conditions

“…However, the same concepts are likely to be overcome when structures are designed for extreme conditions of use, since other unpredicted phenomena can occur [11,12]. Referring, for instance, to the case of the thin metal sheets the telescopic boom is made of, the more their thickness is reduced, the more unstable their behavior becomes [13]. Thus, every action dealing with a reduction in thickness needs to be thoroughly analyzed by theories including the study of second order effects, such as buckling of plates and sections [14][15][16][17].…”