Study of Hydraulic Transients Using the Bond Graphs Method

One of the latest modeling technique for dynamic systems studies came through the 1950’s. Created by H.M. Payner (Speranza, 1992) who, according to Thoma (1975), felt the urge to create methods and criteria able to generalize the accomplishment of state equations representative of a system. That is the “Bond Graphs” technique. It is based on the power flow among the system components and provides a generalized approach to the system state equations, allowing simulation and interaction of different power domains like: hydraulical with mechanical, or mechanical with electrical, and others. The “bond graphs” techiniques became a powerful tool used in studies and modeling of dynamical systems as seen in works by Karnopp and Rosenberg (1983 and 1975).