Modeling and Analysis of Electromagnetic Suspension Systems Using Newton’s Second Law

The advancement of automotive suspension systems plays a pivotal role in enhancing the comfort and performance of vehicles on diverse road profiles. This research aims to revolutionize car suspension technology by introducing an electromagnetic suspension (EMS) system. The impact on springs and dampers, in terms of time-varying stiffness, is investigated by replacing conventional springs with electromagnetic counterparts. A comprehensive mathematical model of the electromagnetic car suspension is formulated and analyzed using Newton’s second law and combined with the Taylor expansion series. One mathematical method for determining the magnetic or electric field close to a source involves using a Taylor series expansion to represent the electric field near a point source. When the proposed EMS system was tested on a sedan model, the results showed a damped oscillation time of around five minutes and a maximum displacement amplitude of 0.8 units. Compared to the conventional method, the damper/spring force in the EMS system was observed to decreased linearly over a 20-minute period, ranging from 9 to -2 units. The significant advantage of the EMS suspension, which consists of magnetic dampers, over the conventional damper is that it provides a more stable ride for passengers, benefiting the car's driver. These findings demonstrate that EMS is a practical and efficient solution for providing more comfortable ride technology for future cars.