Based on analytical results obtained in the frequency domain, modal approximation techniques are employed to derive transfer function and state space models applicable to a pressure input-flow rate output causality case of a transmission line. The causality case considered here arises while modeling short connection lines to hydraulic accumulators. However, the modal approximation results presented apply also to other cases where the linear friction model is considered applicable. It is highlighted that the results presented can reduce the overall order of the hydraulic system model containing the transmission line being considered.

Issue Section:
Technical Briefs
Keywords:
modal analysis, transfer functions, state-space methods, hydraulic systems, flow, friction
Topics:
Approximation, Flow (Dynamics), Pressure, Transmission lines, Transfer functions, Friction, Hydraulic drive systems, Dynamics (Mechanics)
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