Hydraulic pump condition monitoring using dynamic response

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This project will study the feasibility of determining the condition of hydraulic pumps via their dynamic**response. A pump suffering from mechanical wear and erosion will experience more leakage and different**friction on its internal components. These changes in leakage and friction will change the pump's response to**changes in flow command or back pressure. This study will create a dynamic model of the particular pump**involved in the study and quantify the changes in pump response, with the aim of evaluating the service life**remaining in the pump from dynamic pressure measurements.**This study is related to a separate study that will generate a large number of pumps with varying degrees of**wear. Those pumps were highly instrumented over their lifetime so the wear history is well known. These**pumps will be used as test subjects for the current proposal. In contrast to previous studies that have**concentrated on artificial faults introduced into the pump, these realistically worn pumps will provide a more**accurate cross section of typical faults and wear characteristics.