Title :
Field optimization using the calculus of stationary points
Author_Institution :
American Maglev, New Smyma Beach, FL, USA
fDate :
5/1/1999 12:00:00 AM
Abstract :
The calculus of stationary points or indirect optimization is noted for rapid speed. It´s speed is realized in an analytical representation of the Hessian and a polynomial fit of both the objective function and the constraints. Constraints are treated as active using Lagrangian multipliers. Because the algorithm´s speed is so rapid, the problem can be repeated multiple times with random starting guesses to circumvent the possibility of encountering local wells. Both an analytic and an actual field problem are considered by way of providing examples of the technique
Keywords :
Hessian matrices; calculus; magnetic fields; magnetostatics; optimisation; polynomials; Hessian matrix; Lagrangian multipliers; field optimization; field problem; functional approximation; gradients; indirect optimization; local wells; magnetostatics; objective function; polynomial fit; random starting guesses; stationary points calculus; Calculus; Constraint optimization; Finite element methods; Fuzzy logic; Inverse problems; Lagrangian functions; Magnetic levitation; Neural networks; Polynomials; Reflection;
Journal_Title :
Magnetics, IEEE Transactions on