Dynamic Characteristics Analysis Of Highspeed Angular Contact Ball Bearing Based On Improved Artificial Bee Colony Algorithm

Rolling bearings are a basic key support component widely used in various occasions.With the advancement of the modern machinery industry,bearings are increasingly moving toward high-speed and high performance,and higher requirements are imposed on their dynamic performance.Therefore,it is of theoretical significance and engineering significance to study the dynamic characteristics of angular contact ball bearings under high-speed conditions.Firstly,this paper takes the high-speed angular contact ball bearing as the research object,and establishes the dynamic characteristic analysis model of the high-speed angular contact ball bearing based on the basic analysis theory of the bearing.It consists of a geometric equilibrium equation for deformation,a balance equation for bearing rolling elements,and an equilibrium equation for the inner ring of the bearing.Secondly,the problems existing in the traditional numerical iterative method for solving the model are analyzed.The transfer relationship of each variable in the model is explored.The actual internal contact angle,actual external contact angle,radial deformation and axial deformation are taken as the fundamental iterative variables.The variables in the original high-dimensional nonlinear equations are reduced by nearly half,which lays the foundation for the writing of the algorithm and the development of the software.Thirdly,the search formula of the standard artificial bee colony algorithm and the algorithm structure of the initialization stage are improved.The improved artificial bee colony algorithm based on Python is written to avoid the shortcomings of the traditional numerical iterative method.It can solve the problems of high dimensionality,nonlinearity,multi-extreme value and large root difference,and can ensure the accuracy of the calculation results and the global convergence speed.Then,the nonlinear equations of the high-speed angular contact ball bearing dynamics analysis model are transformed into functional optimization problems,and the dynamic characteristics optimization model of high-speed angular contact ball bearings is constructed.Then the improved artificial bee colony algorithm is used to solve the problem.The influences of different structural parameters and working parameters on the actual internal and external contact angle,centrifugal force,gyro moment,rolling element revolution and rotation,attitude angle,axial deformation and radial deformation of the bearing are obtained.At the same time,the initial contact angle function is established based on the initial contact angle.The influence of the initial contact angle on the dynamic performance of the bearing is studied.Finally,based on Python,the dynamic analysis software of high-speed angular contact ball bearings is developed to make the dynamic analysis and calculation process of bearings more solid and efficient,which provides a convenient and reliable means for bearing analysis.