Temperature Rise Analysis And Simulation Research On Traveling Wave Induction Launcher

Electromagnetic launch technology is one important step in the human energy use history.Early in the 19th century,the conception of electromagnetic launch was proposed.After accumulation of 100 years,electromagnetic launch has made great development.The application of electromagnetic launch has been extended to many fields,such as aerospace and so on.Compared to the original ordinary electromagnetic transmitter , traveling wave induction transmitter has already improved significantly.The structure of traveling wave induction transmitter is more convenient for the connection of all levels coil which can avoid the troubles caused by the inner-process in ordinary electromagnetic launch.However,because of the widely use and increasingly big power of traveling wave transmitter,people increasingly begin to pay more attention to its temperature problem.At present,there isn't a whole theory in researching the traveling wave transmitter temperature field,especially the projectile part.If the traditional thermal methods are used to analyze the temperature field of the projectile part,it will need lots of approximation and the large number of calculations.In this paper,powerful electromagnetism(thermal coupling module) applied by ANSYS is used to analyze the temperature field of the projectile part and then the parameters are studied which affect the projectile part temperature.So a new analyse method is applied to the traveling wave transmitter.To reduce the experimental costs and increase efficiency,firstly the theoretical analysis is done,then the simulation.On the basis of of the existing theories and the thermodynamic knowledge,the working principle of the traveling wave induction launcher and the reasons why the temperature rising are analyzed,the traveling wave induction launcher temperature field model is established and boundary conditions are confirmed.Lastly by the combination method of finite element simulation and theoretical analysis , this paper applys formula and numerical calculation of traveling wave induction launcher parameters such as heat transfer coefficient,thermal conductivity,heat capacity.Analyse the traveling wave induction launcher temperature field with the method of ANSYS electromagnetic analysis (thermal coupling module).By changing the parameters which affect temperature field,the temperature field nephograms in different condition are compared and analysed,the important conclusions are drew.These conclusions will apply theory references and analysis methods to the traveling wave launch design,so they have great theoretical means and pratical value.