Finite Element Analysis Of Frame Retractable Multifunctional Cement Concrete Pavement Paver's Structure

There are many shortcomings about traditional cement concrete pavement paver,such as single function,high cost,and small adjustable paving width,which have limited its using extent in practical application.Based on a new type of frame telescopic multifunctional cement concrete pavement paver,through the method of finite element analysis of Ansys Workbench,the optimization and improvement scheme of the paver structure is put forward to make the structure strength of the paver meet the requirements of the use,the weight of the whole machine lighter,and to provide the basis for the improvement and perfection of the paver in this thesis.In this thesis the structural features and construction techniques of the frame-mounted telescopic multi-purpose cement concrete road paver is analyzed,the resistance of each working device under the extreme working conditions of the paver is calculated,and the static analysis was performed on the paver's telescopic racks and other structures.In Solidworks,the model of the meter gate,the frame structure of the motor platform,the telescopic frame structure and the fuselage structure of the paver are established,and the finite element analysis is carried out in the Ansys Workbench.The results of the finite element analysis show that except the strength of the motor platform support structure does not meet the requirements,the structure needs to be improved,and other structures meet the requirements of the work.The modal analysis of the fuselage structure is also carried out in the thesis.It is found that the modal frequency of the fuselage structure is relatively high,the paver only need to avoid excessive vibration in the work process can prevent resonance phenomenon.At the end of the thesis,the structure of the motor platform bracket is improved and strengthened,and the structure of the box fuselage structure with higher mass is optimized.The results show that the improved motor platform bracket meets the requirements of strength and rigidity,and the weight of the box body after optimization was reduced by 23.4%,which achieves the purpose of optimization design.