Simulation of Stress and Temperature Distribution of Drive Coil

Electromagnetic drive coil transmitter works in a complex environment in which electromagnetic, temperature, stress and other physical fields are coupled with each other. When designing and manufacturing the coil, it is necessary to comprehensively consider the characteristics change of packaging materials of the drive coil under the action of various physical fields. Multiphysical field coupling simulation calculation is carried out for single-stage driving coil made of glass fiber, epoxy resin and Zylon respectively, and the temperature, stress, deformation and other changes of driving coil under no-load and loaded conditions are studied. By comparing and analyzing the simulation results of temperature distribution, stress distribution, temperature change curve at the highest temperature, stress change curve at the maximum stress point and strain nephogram under the action of multiple physical fields of different packaging materials, it is concluded that the specific heat capacity, thermal conductivity, elastic modulus and other parameters of packaging materials affect the temperature rise, stress and strain of the driving coil. In order to clarify the failure mechanism of the driving coil, it has certain guiding significance for the material selection and structural design of the electromagnetic driving coil.