Case Study: Leibniz Universität Hannover achieves ultraprecision machining with magnetic levitation guides using MathWorks Simulink PLC Coder

Model-Based Design of Magnetic Levitation Guide Control System for Ultraprecision Machining

Leibniz Universität Hannover sought to develop a new, high-precision magnetic levitation guide system for ultraprecision machining to overcome the cost and complexity of traditional hydrostatic and aerostatic guides while maintaining submicron accuracy. They partnered with MathWorks and utilized Model-Based Design with Simulink and Simulink PLC Coder to tackle the challenge of creating the sophisticated real-time control system required for the inherently unstable levitation technology.

Using MathWorks tools, the team modeled, simulated, and generated IEC 61131-3 structured text for the control system, which was deployed to a Beckhoff Industrial PC. This solution from MathWorks accelerated development, minimized manual coding, and enabled them to successfully demonstrate a first-of-a-kind, fully functional prototype. The machine achieved a surface roughness of less than 45 nm Sa on an aluminum workpiece, proving the feasibility and high precision of the magnetic levitation approach.

Leibniz Universität Hannover

Per Schreiber

Institute of Production Engineering and Machine Tools