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Design of Property Shifts in V-Interconnected Hydraulic Systems

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The task of this study consists in a parametric design applied to a MIMO hydraulic test rig subjected to dynamic demands. The aim is obtaining relevant physical metrics about the operating states of the test facility that will guarantee system potentialities for observing fundamental property shifts regarding the available V-interactions between process variables. Unlike the linearized models in deviation variables for simplification of hydraulic Non-Linear Differential Equation (NLDE), broad-range linearized system models are proposed, comprising the significant initial conditions for this system. This appears to be an all-range linearized model with state memory. The linearized representation enables extensive treatment of the process changes, so it naturally ensures the non-linear plant properties. The examined plant stability is analyzed by applying previous author’s results defining a special system symptom (V-interaction coefficient) for detecting fundamental property shifts in V-interconnected plants. After optimizing the interaction coefficient regarding plant constructive parameters and operating conditions, a set of concurrent solutions is obtained thus giving valuable insight to plant functioning and options for deriving practical design measures to pre-set goals and their fulfilment by the experimental facility.
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Hydraulic Systems; Linearized Initial-Condition Models; MIMO V-Interconnected Plants; MIMO V-Stability

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