Axiomatic principle of multi field coupling dynamics analysis

Abstract

A multi-field coupling system involves several physical quantities and is usually difficult to achieve satisfactory performance in practice due to the lack of merit index for such complex system. Here, we propose a gauge, the field-exchange rate (FER), for evaluating and guiding the design of a multi-field coupling system. Basically, the FER of a physical quantity determines the allowed strength of that quantity loaded in the system. The best performance and reliability of the system can be achieved if the FERs of all relevant physical quantities are satisfied. The application of this FER gauge in previously reported studies generates the data that is consistent with the experimental results, which verify the validness of our FER approach. In addition, our FER analysis predicts that for electromagnetic launch techniques aluminum is a better candidate material than copper, a conventionally and widely chosen material in today’s industry applications. Our ampere force experiment confirms this selection suggested by FER gauge. It can be expected that FER gauge would become a powerful and convenient tool in designing advanced and complicated systems with optimal performance in modern industries.