| Traction lift transport platform is a tool for the transfer. This tool is speciallydesigned to transport large equipment. The structure of traction lift transport platform isanalyzed and designed according to the general requirements of the design. The designof the lift leg, the table of the platform and the traction support equipment is mainlyconsidered. Each designed components are assembled in the three-dimensionalsoftware.After the introduction of the basic theory of the finite element method, a finiteelement model of tractor lift transport platform is established in Ansys/workbench.Then the static analysis is carried out in various conditions. Stress distribution anddeformation conditions are obtained by computing. The strength and stiffness of thestructure is checked on the basis of the results of the analysis.Freedom modal analysis was performed to study the dynamic characteristics of thestructure. Then the natural frequencies and mode shapes are obtained by the aboveanalysis. The prestressed modal analysis for the frame is conducted. Natural frequencyfrom the analysis and excitation frequency are compared. The conclusion by thecomparison is that the resonance can be effectively avoided.The random vibrationanalysis of the frame is performed based on the data from the prestressed modalanalysis. By combining classic interface of Ansys with Ansys/workbench, the numberof the node with maximum displacement is found out. Spectral curves were plotted byinserting APDL command. The dynamic response of the frame in the C-class roadexcitation is analyzed by these curves.Topology optimization of the frame is finished on the torsional condition. Based onthe results of the analysis of the topology optimization, the frame is made a secondarydesign. The analysis shows that the strength and the stiffness of the frame are met therequirements after optimization and the effect of lightweight is obvious. |
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