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Motion-Induced Eddy Currents in Magnetic Gears
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Even though magnetic gears contain no coils, the relative motion between permanent magnets and conductive steel causes motion-induced eddy currents that significantly affect performance; ignoring these currents leads to overestimated torque and underestimated losses. Accurate analysis must include transient simulation with conductivity and motion, as standard magnetostatic models miss these effects. The note shows that eddy currents oppose magnetic flux changes and reduce torque, so they can’t be ignored in realistic magnetic gear modeling.
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Design and Analysis of a Consequent-Pole Coaxial Magnetic Gear
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This note uses finite-element simulation to study the electromagnetic behavior of a consequent-pole coaxial magnetic gear (CP-CMG) design, where both permanent magnets and consequent (ferromagnetic) poles are used to achieve gear functionality without physical contact. It analyzes torque transmission, flux distribution, and overall performance of this magnetic gear topology to confirm design decisions. The results demonstrate how the consequent-pole configuration affects gear performance and can be evaluated accurately through simulation.
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Customer Testimonial
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[...] We’d just like to thank EMWorks for generously donating their electromagnetic simulation software to us. Now we can actually refine the finer points of our motor! The software has been very helpful so far, getting an idea of the linear magnetic flux density of various magnet configurations. [...]
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Channel Partner Testimonial
Working with EMWorks has been an outstanding experience. Their team is consistently responsive, communicates clearly, and proves reliable in every interaction.
What truly distinguishes them is their strong technical expertise combined with a genuine commitment to collaboration—whether addressing customer needs, supporting outreach initiatives, or exploring new business opportunities together.
We have always felt well supported, benefiting from quick turnaround times and structured guidance that enables us to move forward with confidence and efficiency.
EMWorks combines solid engineering insight with sharp business awareness, making them a dependable partner for both technical discussions and channel growth.
We would highly recommend EMWorks to any organization seeking a professional, knowledgeable, and dedicated partner. Their consistency and commitment have made our collaboration seamless, productive, and truly impactful.
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