Science and Education Publishing American Journal of Mechanical Engineering 1 7 2013 11 22 Bond Graphs of the Electrical RLC Circuit 318 323 EN Darina Hroncová Department of applied mechanics and mechatronics, Technical University of Košice / Faculty of mechanical engineering, Košice, Slovakia Alexander Gmiterko AJME20131733 10.12691/ajme-1-7-33 2013 10 21 2013 11 01 2013 11 22 The work shows the use of Bond Graph formalism for modeling dynamic systems. As an example a electrical model is solved by this approach at the level of its physical behavior. In contrast with the classical method, where the equations for individual components are created first and then the simulation scheme is derived on their basis, the described method uses the reverse procedure. In this paper the method of generation of system equations is discussed. From a bond graph diagram of the system, using a step-by-step procedure, system equations may be generated. As a starting point a model of a simple electrical RLC circuit consisting of a resistor, an inductor, and a capacitor is taken. The differential equations describing the dynamics of the system are obtained in terms of the states of the system.