Research On The Erection Of Cylindrical Linear Motor Model And Dynamic Thermal Field

With resent years'expension of the realm of linear movement,linear motor has gradual attention.At a tremendous speed of the linear motor researching,by which many mechanical linear movements are achieved,people have made great progress in structural designing,controlling theory and motor fundamentals,applied to other fields in national economy.It is becoming a promising type of new motor.Under the circumstance of its rising capacity and practical peculiarity,the problem of heat generating comes to be obvious.As a result,the accurate calculation of the heat generated can provide necessary theoritical evidence to design and controlling of linear motors. The CLM introduced in this passage is often used on the occasions of short distance and repeated movements.In the process of heat generating,motor material's coefficient of thermal conductivity changes with temperature and ,due to the variety of materials, coefficient of thermal conductivity in some parts of the motor appears to be anisotropism.Based on the basis fundamentals and structures of CLM.I designed a set of temperature measuring system.In the light of the working statue.I proposed a model of DTF of the CLM and thoroughly researched to make a preference of coefficient of thermal conductivity,specific heat and coefficient of heat transfer of motor materials.Furthermore,according to the basic fundamentals of heat transfer,I made use of time-stepping NTM to calculate DTF of CLM and form a general ime-stepping NTM calculation formulation.Lastly,I introduced the solution to NTM formula and the method of sketching temperature curve of thermal field.Simulating the project by using ANSYS analytical software,I acquired the distribution of CLM elementary trough temperature curve.The results proved that this model worked efficiently,which would provide theoretical basis to the further development of this realm.