An international research team, including a Nazarbayev University scientist, has developed a simplified analytical approach for predicting the periodic motion of microelectromechanical systems subjected to magnetostatic forces.

Microelectromechanical systems, commonly known as MEMS, are miniature devices that combine mechanical components with electronic control. They are widely used in sensors, communication technologies, medical equipment and other precision devices.

The researchers examined a MEMS oscillator consisting of a moving current-carrying wire attracted to a fixed wire by a magnetostatic force. Such systems can demonstrate periodic motion when the excitation remains below a critical threshold. When the force becomes too strong, the moving element may collapse onto the fixed structure a phenomenon known as dynamic pull-in instability.

For the model considered in the study, the critical excitation parameter was approximately 0.2036. Below this value, the system can maintain periodic oscillations.