Modular Linear Electric Motor with Active 3-Phase Rotor and Stator: Scalable, Magnet-Free Design for EVs, Aircraft, and Marine Propulsion

🔹 Title: Modular Linear Electric Motor with Active 3-Phase Rotor and Stator: Scalable, Magnet-Free Design for EVs, Aircraft, and Marine Propulsion 🔹 Author: Muhammad Usman MalikORCID ID: 0009-0004-3269-2918 🔹 Abstract: This publication introduces a new class of magnet-free, fully electromagnetic multi-motor linear drive systems, featuring active 3-phase windings on both stator and rotor components. Built on a shared shaft architecture, the design is compact, modular, and highly scalable. It eliminates the use of permanent magnets, reducing environmental costs and enabling local, cost-effective manufacturing. Designed with a low cross-section, this system is ideally suited for electric vehicles (especially underfloor mounting), aircraft requiring thin propulsion systems, modular marine engines, and smart industrial motion systems. Each motor stage can be independently controlled through AI-based voltage, current, and frequency modulation, enabling dynamic torque and efficiency tuning across speed ranges. 🔹 Technical Highlights: Active 3-phase windings on both stator and rotor Three modular motor units mounted on a single common shaft Linear, low-height profile ideal for floor-mounted or embedded systems Fully compatible with AI/ML-based control systems Designed for easy servicing and mass manufacturing Rare-earth free: no permanent magnets required 🔹 Why Not One Long Motor? (FAQ) Concern Why Modular Motors Are Better Heat Control Smaller units are easier to cool Efficiency AI can optimize each unit separately Maintenance Replace 1 stage, not the whole system Flexibility Easy to scale up/down based on use Manufacturing Identical units reduce cost & complexity Dynamic Control Each unit can adjust output independently 🔹 Applications: 🚗 Electric Vehicles (especially SUVs, trucks, military) 🛩️ Electric Aircraft (wing-embedded, fuselage-integrated systems) 🚢 Marine Propulsion (yachts, submarines, ferries) 🏭 Industrial Rotary Systems and Linear Actuators 🚛 Autonomous cargo vehicles with smart power distribution 🔹 Diagram Description: The attached figure illustrates a three-segment linear electric motor system with: Outer stator coils and inner rotor coils, both actively driven via 3-phase power. A shared through-shaft design for efficient torque transfer and mechanical unity. Modular stacking layout with a slim vertical profile. 🔹 License Recommendation: Creative Commons Attribution 4.0 International (CC BY 4.0) 🔹 Keywords: Modular Electric Motor, Linear Electromagnetic Drive, Rotor-Stator Active Coil Design, Rare-Earth-Free Motor, Multi-Stage Motor, EV Motor Architecture, Aircraft Electric Propulsion, AI-Controlled Motor System, Next-Gen Electric Drive Would you like me to prepare a Zenodo cover image or a PDF version of this entry for upload convenience?