基于ANSYS折臂式塔機(jī)臂架參數(shù)化設(shè)計(jì)及分析系統(tǒng)研究
[Abstract]:With the increasing demands of high-rise building and old urban reconstruction, the folding jib tower crane, which meets the objective requirements of the construction site, has become an indispensable construction equipment. The lattice jib structure is the main component to ensure the operation range, construction precision, carrying capacity, work efficiency and so on. The design level of the structure is related to the development process of the folded jib tower crane in China. At present, there are relatively few design theories in the field of jib structure of folding tower crane in our country, and there is no unified design standard. In this paper, the jib structure of folded arm tower crane is taken as the research object. A software analysis system which integrates parametric modeling and optimization design is developed, which provides an important reference value for drawing up the unified standard of folded arm tower crane. In this paper, the jib structure of the folding tower crane is taken as the research object. Firstly, according to the layout characteristics of the truss structure of the folded arm tower crane, the relevant parameters controlling the geometric model size are extracted, including the geometric model parameters and the boundary condition parameters. The parameters of material properties and real constants, such as boundary condition parameters, mainly refer to the loading parameters of structures. The extracted parameters are combined with APDL language to construct a parameterized model which can reflect the actual constraints and forces. The jib structure follows the calculation principle of the most unfavorable load combination of the metal structure and adopts the maximum load combination in the working state to carry on the load analysis so as to ensure the safety and rationality of the boom structure. Then, taking the geometric dimension of the arm section as the design variable and the net volume (mass) as the objective function, the lightweight problem of the structure can be solved under the condition of the most dangerous working condition safety of the arm. Finally, with VC as the research and development platform and ANSYS software, the parametric design and analysis system of arm structure is developed, which is easy to operate and has strong versatility.
【學(xué)位授予單位】:太原科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TH213.3
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