| The wonder wheel is one of the most representative devices in today’s large-scale amusement facilities.Since the birth of the world’s first wonder wheel,the height of the wonder wheel constantly refresh again,all the more novel changeable structure,bearing the number is becoming more and more huge equipment size and structure of the innovation of the passengers and equipment safety problem is to correctly at the beginning of the wonder wheel design,rigorous,clear to solve problem,through the finite element analysis method of simulating the stress of wonder wheel under different conditions,the safety assessment to ensure correctness of design and equipment safety to meet the requirements of the existing standards,so as to ensure the safety of the passengers and the reliable operation of the equipment.The research object selected in this thesis is the observation car with a total height of 50 meters.The equipment adopts the full-truss wheel support structure,the diameter of the outer raceway is 35 meters,and the driving mode is driven by the variable frequency motor of the friction wheel.The equipment is equipped with 32 cranes and can carry 128 passengers when running at full load.This article main research content for the help of ANSYS finite element analysis software,using the software APDL parametric design language to build large wheel equipment overall grade beam column structure finite element model,applying all kinds of specification requirements of load and reasonable model constraints,for big wonder wheel equipment to conduct a comprehensive analysis of the structure statics and dynamics.According to the initial design conditions and the characteristics of the site where the equipment is located,the equivalent static wind load and seismic load can be reasonably simulated according to the requirements of national standards and codes.At the same time,the corresponding load control conditions are sorted out,including the full load condition of normal working wind,the limit wind load condition and the seismic load condition.The wind load condition is analyzed by the static wind equivalent node.Seismic response spectrum method and seismic time history analysis method are the main seismic analysis methods.Through the comprehensive analysis of the above working conditions,the research equipment under the live load,wind load and seismic load of the overall structure of the force and deformation to meet the design requirements.On this basis,the finite element analysis of the fine model conditions of the main shaft of the Wonder wheel is carried out and its design is optimized to ensure that the local important forces of the main shaft structure meet the requirements of the standard specification and design and the design rationality of the product is fully reflected.Also used in the process of finite element analysis software ANSYS APDL parametric design language,through the analysis of this device results can be derived similar documents or specifications for different installation place fast and efficient modeling analysis,and for the same kind of product development design provide more accurate reference basis and design ideas,improve the efficiency of enterprise product design research and development,product from concept design to market quickly validate transformation,promote enterprise’s core competitiveness. |