Modeling and Validation of 2-DOF Rail Vehicle Model Based on Electro–Mechanical Analogy Theory Using Theoretical and Experimental Methods

Abstract

This paper presents theoretical and experimental results on modeling and simulation of two degrees of freedom rail vehicle by using electro-mechanical similarity theory. In this study, the equations of motion were derived using Newton’s second law of motion and then mechanical and equivalent electrical circuits were obtained with the help of a free body diagram. A schema in Simulink allowing analyzing of the behavior of the primary and secondary suspension was created. In order to verify the electrical model, transfer function and schema were developed in Simulink. The simulation results were compared with the experimental data and the comparison showed that the results of the mechanical experiments were close to the simulation results, but the electrical results showed better periodic behavior.

Electric Circuit-Based Modeling and Analysis of the Translational, Rotational Mechanical and Electromechanical Systems Dynamics

“…The analogy between mechanical and electrical systems yields many advantages in this domain. The analogy has been implemented in many applications such as suspension modeling and control [25]- [28], vehicle drive trains [29], structural dynamics [30], in designing and controlling of flexible structures [31], optimization and design of inductive power transfer systems [32], piezoelectric vibration energy harvesters [33]. While other studies aimed for vibration applications as the their main of interest [34]- [40].…”

Dynamic Behavior and Force Analysis of the Full Vehicle Model using Newmark Average Acceleration Method

“…According to the variable damping coefficient limit, semi-active suspension systems were created in Matlab/Simulink in [5] and system's damping coefficient limit of 4000Ns/m performed best when considering ride comfort. Theoretical and experimental analyses of rail vehicles were modeled in [6] using electro-mechanic similarity theory. A quarter-car model with a PID controller used to minimize the vertical body acceleration was prepared in [7].…”

Method for predicting dynamic loads for a health monitoring system for subway tracks

“…Such as the measurement of dynamic strains and accelerations on the foundation (Davis & Sanayei, 2020). Other studies were based on modeling the vehicle interaction with the bridges structure and substructure (Esen, 2011;Mizrak & Esen, 2015;Pehlivan et al, 2018) (Daniel & Kortiš, 2017),. Malekjafarian et al (2019) and (Malekjafarian & OBrien, 2017) applied accelerometers and GPS for monitoring track conditions.…”