Bond graphs are a powerful formalism for modeling the continuous dynamics of physical systems To model fast continuous changes as discontinuities hybrid bond graphs introduce an ideal switching element the con trolled junction that may inhibit power transfer by enforcing its common variable to be zero When bond graph storage components become dependent upon one another because of a discrete sta...

Abstract In this paper, we give various lower and upper bounds for the energy of graphs in terms several topological indices graphs: first general multiplicative Zagreb index, Randić zeroth-order redefined indices, atom-bond connectivity index. Moreover, obtain new certain graph invariants as diameter, girth, algebraic radius.

Bond graphs are a powerful formalism to model continuous dynamics of physical systems. Hybrid bond graphs introduce an ideal switching element, the controlled junction, to approximate continuous behavior that is too complex for numerical analysis (e.g., because of nonlinearities or steep gradients). HyBrSim is a tool for hybrid bond graph modeling and simulation implemented in Java and document...

In this paper, a new bond-graph library is introduced, programmed as part of the Dymola object-oriented graphical modeling environment. It is shown that the embedding of bond graphs into the Dymola modeling framework adds both expression power and flexibility to the bond-graph modeling methodology. The Dymola modeling framework is summarized, and the new bond-graph library is introduced. An (ac...

Accurate modeling mechanisms play an important role in model-based diagnosis, and the bond graph modeling language has proved to be helpful for this task. In this paper we present an algorithm for automatically derive ARR-like structures, possible conflicts, from the bond graph model of a system. The algorithm uses temporal causal graphs as an intermediate structure to generate the set of possi...

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This paper proposes a phasor representation of electrical networks by using bond graph methodology. A so-called phasor bond graph is built up by means of two-dimensional bonds, which represent the complex plane. Impedances or admittances are used instead of the standard bond graph elements. A procedure to obtain the steady-state values from a phasor bond graph model is presented. Besides the pr...