Prediction of transient and equilibrium component temperatures and evaluation of cumulative insulation damage of blast-cooled machines

IN THIS PAPER several aspects of correlating thermal test data of blast-cooled aircraft generators are reviewed. A graphical presentation of machine characteristics is introduced, which may be used in predicting steady-state and transient machine temperatures. Methods are discussed for determination of machine heat capacity and for calculation of transient component temperatures. Supporting experimental data are presented. Relationships for the calculation of cumulative insulation damage are developed and their applications suggested.