Topology Optimization of Support Structure for Long-Range Boom Lift

다국어 초록 (Multilingual Abstract)

Structural design of long-range telescopic boom system used for lifting work platform requires serious consideration of structural integrity and reliability. Component design can be rapidly and economically conceptualized using CAE tools. In this work, the concept design of support structure for a long-range telescopic boom lift is obtained using topology optimization method. The classical topology optimization formulation is implemented with consideration on various load cases encompassing actual operation conditions. Transfer mechanism of loads from the work platform and boom self-weight into the support structure is analyzed and verified by FEM. In the analytical solution, boom self-weight is defined by its magnitude and location in space while bar or truss elements are used to model the boom structure with the corresponding point loads. Agreement of the calculated reaction forces is very close. The support structure is isolated with the reaction forces imposed on predefined loading points of the structure and topology optimization is carried out. This method can significantly reduce FE-model size and consequently computation time allowing more opportunities to explore possible design configurations within the capability of the topology optimization tool being used. The topology or material layout of the support structure at the converged iteration will be translated into manufacturable final design using a CAD tool.

목차 (Table of Contents)

• Abstract
• 1. INTRODUCTION
• 2. BOOM SUPPORT STRUCTURE LOADS
• 3. TOPOLOGY OPTIMIZATION OF THE BOOM SUPPORT STRUCTURE
• 4. RESULTS
• References