Interpolation approach in fitting equations into design data (POINTS)

Procedures and methods for fitting equations to represent design data used in routing designs of electrical machines are presented in this paper. The equations with the appropriate constants are computed using the numerical data which are accurately taken from the various design curves. It was found that the B-H curves, the ampere-conductor ratings, as well as the core path shortening factors can easily be fitted using the least square method as well as using the computer for carrying out the routine calculations. The equations obtained very satisfactorily represent the origin design data; and in this way considerable computer time and storage space were saved in subsequent design calculations when a new design needing the data is embarked upon.