ELECTROMAGNETIC FIELD DISTRIBUTION CALCULATION METHOD, ELECTROMAGNETIC FIELD DISTRIBUTION CALCULATING DEVICE, AND ELECTROMAGNETIC FIELD DISTRIBUTION CALCULATION PROGRAM

摘要

PPROBLEM TO BE SOLVED: To provide an electromagnetic distribution calculation method can perform high precision electromagnetic field analysis, even when it includes a metal sheet structure, such as a metallic structure body of a car, and to provide a device and an electromagnetic field distribution calculation program that uses the calculation method. PSOLUTION: The method performs a step of dividing a metal structure body surface into metal elements which consists of N pieces of minute areas, and establishes a loop current value which flows over each metal element as a variable ISBk/SB(k=1 to N); a step to calculate magnetic flux density on the metal element transmitted from an alternating field generation source as an external magnetic flux density; a step of using the external magnetic flux density and the loop current value, introducing an equation, in which the normal direction component of the magnetic field in each metal element becomes 0 for N metal elements, and construct simultaneous equations which consists of N equations; a step of solving the simultaneous equations, and obtaining a loop current value ISBk/SBwhich flows on each metal element; and a step of using the obtained loop current value ISBk/SB, and calculate electromagnetic field distribution in a perimeter of the metal structure body. PCOPYRIGHT: (C)2006,JPO&NCIPI