TY - JOUR N2 - The possibility of distinguishing and assessing the influences of defects in particular pump elements by registering vibration signals at characteristic points of the pump body would be a valuable way for obtaining diagnostic information. An effective tool facilitating this task could be a well designed and identified dynamic model of the pump. When applied for a specific type of the pump, such model could additionally help to improve its construction. This paper presents model of axial piston positive displacement pump worked out by the authors. After taking the simplifying assumptions and dividing the pump into three sets of elements, it was possible to build a discrete dynamic model with 13 degrees of freedom. According to the authors' intention, the developed dynamic model of the multi-piston pump should be used for damage simulation in its individual elements. By gradual change in values of selected construction parameters of the object (for example: stiffness coefficients, damping coefficients), it is possible to perform simulation of wear in the pump. Initial verification of performance of the created model was done to examine the effect of abrasive wear on the swash plate surface. The phase trajectory runs estimated at characteristics points of the pump body were used as a useful tool to determine wear of pump elements. L1 - http://www.journals.pan.pl/Content/84465/PDF/01_paper.pdf L2 - http://www.journals.pan.pl/Content/84465 PY - 2011 IS - No 2 EP - 155 DO - 10.2478/v10180-011-0010-x KW - dynamic model KW - modelling KW - diagnostics KW - axial piston pump KW - swash plate KW - signal analysis KW - vibration measurement A1 - Łatas, Waldemar A1 - Stojek, Jerzy PB - Polish Academy of Sciences, Committee on Machine Building VL - vol. 58 DA - 2011 T1 - Dynamic model of axial piston swash-plate pump for diagnostics of wear in elements SP - 135 UR - http://www.journals.pan.pl/dlibra/publication/edition/84465 T2 - Archive of Mechanical Engineering ER -