Modeling and Simulation of Launch Dynamics for Electromagnetic Rail Mechanical-Electro-Magneto-Thermo Coupled System

Electromagnetic rail launch has significant advantages such as high launch speed and adjustable speed, but the launch process is complex, involving multi-domain coupling of forces, electricity, magnetism and heat. To address the challenge of rapid design and optimization of the launch dynamics of the electromagnetic rail multi-domain coupling system under extreme shock conditions, the transfer matrix method of multi-body systems and the theory of launch dynamics were expanded. For the first time, a launch dynamics model of the vehicle-mounted electromagnetic rail launch device and the mechanical-electro-magneto-thermo coupling system of the launch environment was established. A simulation program for the launch dynamics of the vehicle-mounted electromagnetic rail mechanical-electro-magneto-thermo coupled system was developed. The vibration characteristics and launch dynamics response of the vehicle-mounted electromagnetic rail system were simulated and analyzed, revealing the coupling dynamics mechanism of the vehicle-mounted electromagnetic rail launch device and the launch environment. This laid a theoretical foundation and digital means for the dynamics design of the vehicle-mounted electromagnetic rail launch device and the launch environment coupling system.