Research On Design And Performance Of Crane With Cabin Assembly Line Scheduling

This thesis designed and analyzed a crane with cabin assembly line scheduling used for cabin assembly line of China Aerospace Science & Industry Corp.The crane has the characteristics of good stability,and it has a small size.It is suitable for lifting and transportation of the cabin assembly line.The crane of the scheme is designed based on the requirments of the ‘cabin assembly line' and the crane working range.The structural of the crane is designed based on the balance equation,the stiffness strength theory and the envelope principle.The power parts of the crane is calclulated and selected.Based on the principle of coordinate transform and enveloping theorem,derived the relationship of the displacement,velocity and acceleration between lift,crane jib and lifting point.In order to,MATLAB and ADAMS are used to verify the theoretical derivation.The finite element model of crane is established by ANSYS Workbench.The stress and strain nephogram of the crane are obtained by statics analysis of the two dangerous working conditions.The reliability and rationality of the crane design are verified.The strength and stiffness of the main parts of the crane are calculated,which avoid the waste of materials and save the design cycle.The dynamic model of the crane is established based on equivalent element method of multi-body dynamics analysis.The dynamic characteristics of three kinds of working conditions are analyzed by ADAMS.The effects of frequency conversion speed method and constant acceleration method on the dynamic characteristics of the crane are analyzed respectively.In order to achieve smooth lifting of the crane,the optimal lifting scheme of the crane is selected.