Dynamic analysis of proportional solenoid controlled piloted relief valve by bondgraph

In this article dynamics of a proportional controlled piloted relief valve have been studied through Bondgraph simulation technique. The governing equations of the system have been derived from the model. While solving the system equations numerically, various pressure-flow characteristics across the valve ports and the orifices are taken into consideration. The simulation study identifies some critical parameters, which have significant effect on the transient response of the system. The simulation results are also verified with experimental results. [The static and dynamic characteristics of a pressure relief valve with a proportional solenoid-controlled pilot stage, IMechE, Part I, Journal of Systems and Control Engineering, 216 (2002) 143-156.]