Abstract
This paper deals with the dynamic analysis and state of the art estimator design through system inversion of a pedagogical hydraulic system, comprising variable displacement axial piston pump, high speed low torque hydraulic motor, proportional direction control valve, loading pump (bent axis) and a pressure relief valve at loading circuit. The hydraulic system has been modeled for simulation study and both the transient and the steady state responses have been validated experimentally. The necessary and sufficient conditions for the system to be observable have been obtained with respect to the minimum number of sensors placement. Thereafter, an estimator adaptive to varying load condition has been designed to have a good estimate of all the states using minimum sensors. All the estimated states have been compared with the responses from the test bed.
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More From: Journal of the Brazilian Society of Mechanical Sciences and Engineering
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