Analysis and validation of a new hydraulic cylinder nominal dynamics

The paper provides analysis and validation of a new model of hydraulic cylinder dynamics. First, we analyze the conventional nominal model via a power preserving interconnection as a port-based approach. Second, we propose and analyze a new nominal model of hydraulic cylinder dynamics. Remarkably, the mechanical part of both models are the same in the representation and the fluid part of the proposed model is a generalized version of that of the convectional model. Furthermore, some properties as simplicity of the conventional nominal model are found in the proposed nominal model again. Finally, we show the effectiveness of the proposed nominal model by a comprehensive numerical validation as well as a non-comprehensive experimental validation.