Parametric Design And Optimization Of High Speed Shafting

With the rapid development of machinery industry,the demand for different types of high-speed rotary machinery has greatly increased.As a core component of highspeed rotary machinery,the high-speed shafting system is the basis for the highperformance,high-reliability work of the rotary machinery.The high-speed shafting structure is complex and diverse,and the design content is numerous.To improve the speed of research and development of high-speed shafting,the most effective method is to develop a high-speed shafting parametric design system using three-dimensional parametric design technology.In this thesis,the high-speed shafting system is the design goal.Combine with UG PLM,UG secondary development technology and the parametric design method,the high-speed shafting intelligent parametric design system is developed.The finite element analysis method is applied to the high-speed shafting parameterized model.Analytical verification and optimization were performed.The main research contents and results of this paper are as follows:(1)Based on the design method and flow of the high-speed shaft system,the structure selection and parameters of the high-speed shaft system and each component were defined.The high-speed shafting and shafting components were parametrically modeled by UG three-dimensional design software.(2)Using the related theories of material mechanics and thermodynamics,the mathematical correlation between the dimensions of the high-speed shafting components and the design goals is studied.The mathematical correlation expressions are incorporated into the established parametric model to realize the high-speed shafting.parametric design.(3)Utilizing UG PLM,the human-machine interface and the reusable library of high-speed shafting and various components were established.The user operation menu and parametric finite element analysis were established in combination with UG secondary development technology,and the high-speed shafting parameterized design system was completed.Development.(4)The finite element analysis method is used to analyze and verify the parametric model of each component of the high-speed shafting system.It is verified that the dynamic and static characteristics of the established parametric model meet therequirements of the input design goals.The structure of the high-speed spindle was optimized.Under the condition of ensuring the structural strength,the optimized highspeed light-load spindle and high-speed heavy-duty spindle weight were reduced by41.6% and 20.1%,respectively,which improved the structural performance of the high-speed spindle.The high-speed shafting parametric design system established in this paper integrates the design and analysis modules to improve the efficiency of the design.The design system realizes intelligent parametric design of complex high-speed shafting,has important engineering practical value,and provides an intelligent and efficient design method for the development of similar new products.