Multi-field Coupling Characteristic Of Electromagnetic Clutch And Multidisciplinary Design Optimization Research

Electromagnetic clutch is a common transmission component in magnetic mechanical products,which is widely used in various fields.The research of electromagnetic clutch involves many subjects such as electromagnetism,heat science,mechanical dynamics and material science,and it is a complex multi-field coupling problem of multiple physical fields such as electromagnetic field,temperature field,structure field,etc.In order to improve the electromagnetic clutch performance,based on the constructed to solve the coupling characteristics of the electromagnetic clutch more than framework and multidisciplinary optimization system,multi field coupling is analyzed under the action of electromagnetic characteristics,temperature characteristics and structural characteristics,and use the multidisciplinary collaborative optimization method solve the problem of multiple field coupling electromagnetic clutch,magnetic force more than mechanical coupling problem is dedicated to provide you with a feasible solution.The main research contents of this paper are as follows:(1)On the analysis of the basic coupling relationship between field and field,on the basis of the research of the electromagnetic clutch electromagnetic field,temperature field,structure field more field coupling relations and solving strategy,electromagnetic clutch is given more than technical route of coupling analysis,and constructed the electromagnetic clutch field coupling characteristics analysis and solve the technical system.(2)The static and dynamic characteristics of the electromagnetic clutch were analyzed in order to obtain the main influencing factors of the action rapidity of the electromagnetic clutch.The results show that the magnetic potential,current and armature thickness are proportional to the Electromagnetic Suction,and the working air gap is inversely proportional to the Electromagnetic Suction.At the same time,the influence of eddy current and spring action on the action response of electromagnetic clutch is studied,and the results show that the armature action is delayed by 12ms and 3ms respectively when the eddy current ratio is calculated without eddy current and when the spring action ratio is calculated without spring action(3)In order to obtain the main factors affecting the property of the electromagnetic clutch,the coupling characteristics of the electromagnetic clutch were studied,and the temperature field and structure field under the coupling effect were analyzed.Results showed that the light load in combination with a frictional heat as the main heat source,cannot be ignored when the temperature field analysis,in the light load work stably for a long time and frequently combined with the separation of two kinds of working conditions,working temperature increased by 5.462 ?,respectively,and 0.5 h 19 ?,shows that the convective heat transfer coefficient of different working conditions,the influence on temperature field;At the same time,the results of stress and strain analysis under the coupling effect show that the maximum deformation of the friction plate under light load and with only one power on or off in the working process occurs near the edge and the central hole,and the maximum stress occurs near the central hole of the friction plate fixed surface.The warping deformation will occur under the condition of frequent power on or off,which is one of the reasons leading to the performance(4)Because the electromagnetic clutch multi-field coupling system involves many disciplines,the multi-disciplinary collaborative optimization method is applied to the electromagnetic clutch optimization design.Firstly,the improved artificial swarm algorithm and the radial basis agent model approximation technology are introduced into the collaborative optimization method,and an improved collaborative optimization method is proposed,and its performance is analyzed by using the test function.Secondly,a multidisciplinary optimization design model of electromagnetic clutch is established,and three multidisciplinary models with the minimum armature operating time,minimum unit friction surface pressure and combined with the minimum total heat are constructed by using the radial basis agent model technology Finally,improve the collaborative optimization method was applied to electromagnetic clutch multidisciplinary design optimization,structure shows that the optimized armature movement time,unit friction surface pressure,combined with a total calories than before optimization decreased by 1.65%,7.67%and9.69%respectively,frequently combined with separation conditions work compared to 0.5 h temperature rise before optimization has been reduced by 6.571 ?.