Pulse induction heating of the hollow thinwalled cylindrical conductors in a solenoid magnetic field in regimes of the multi-point ignition of the propelling sharges

The results of mathematical modeling induction heating of thin-walled hollow cylindrical conductors in variable axial magnetic field are presented. Parametric analysis of the process is conducted by means of exact analytical solutions of one-dimensional magneto diffusion task. Solutions for the three types of boundary conditions for different methods of generation magnetic field are obtained by the transform integral method. By means of the proposed identification algorithm device parameters are evaluated, allowing heat conductors up to the melting temperature within a few milliseconds. Influence electro- and thermo physical properties of the conductor material on the dynamic of its heating applied to multi-point ignition of propellant charges is analyzed.