Implementation of Non-linearity on Experimental Bench Transmission for Electro-Mechanical Controls

Electric drive systems are essential in various industries, and ensuring their trouble-free operation is crucial. Failure to analyze and diagnose vibrations in these systems can lead to significant failures, including accidents and fatalities, as exemplified by incidents in power plants and with electric submersible pumps. Experimental testing on actual systems is one approach, but it can be impractical due to various constraints. Therefore, mathematical models are often used to study system behavior. Mathematical models pertaining to mechanical objects, like transmission shafts, are typically described by sets of partial differential equations, which can be challenging to solve analytically and numerically. Linear models or linearization techniques are commonly used due to the complexity of nonlinear equations. Transmission shafts, being integral components of mechanical power transmission systems, are subject to stress and oscillations, which are analyzed using various analytical methods described in existing literature. The paper proposes an approach to modeling the transmission shaft of an electromechanical actuator, which represents a promising implementation technology in the aerospace sector. This method involves developing a non-linear model capable of accurately representing the stationary operational conditions of a servomechanical actuator. The approach aims to achieve high conformity with physical objects and experimental tests while minimizing computation time, making it valuable to planning maintenance.