APDL language-based optimization of tower crane

Abstract

Optimization design of tower crane steel structure is very important for design technique development of tower crane. This paper proposes a kind of parametric optimization model based on Ansys OPT, combined with finite element analysis (FEA) and overall stability theory. The tower body is taken as an example to introduce the building process and the program structure of the parametric optimization model. The combination of calibrating of overall stability and single-limb stability and FEA and OPT is realized through extracting some paramete from FEA results, such as weight and axial force, etc. The realization of the key technology is discussed. A rapid optimization design of tower body is realized by developing corresponding program using ansys parametric design language (APDL). It has a referenced meaning for other optimization design of steel structure.

Optimization for Auxiliary Bracing of Non-uniform Section Boom

“…Idzy(mm 4 ) Idqx(mm 4 ) Idqy(mm 4 ) 8.39×10 10 9.39×10 10 2.33×10 10 2. 80×10 10 (Idzx Equivalent inertia moment of heavy boom to x axis Idzy Equivalent inertia moment of heavy boom to y axis Idzx Equivalent inertia moment of light boom to x axis Idqy Equivalent inertia moment of heavy boom to y axis; x, y axes are shown in Figure 3)…”

“…Schutte and A.A. Groenwold using particle swarms worked on sizing design of truss structures [9]. With the development of computer technology, the structure optimization making shift with FEM software has also come true, such as the optimization of tower crane with APDL language realized by Song Shijun, Li Lei and Wang Jiyong [10].…”