Abstract
Through the internal analysis of excitation vibration source and vibration transfer path of the piston pump, this paper puts forward that the final receptor of the plunger pump is the case, introduces the vibration harmonic response analysis, and derives the mathematical expression of the vibration harmonic response analysis. This study establishes a finite element model of the plunger pump, and makes modal analysis; according to the results of modal analysis, make vibration harmonic response analysis of the case, and determine the modal frequency that has the largest impact on pump shell structure dynamic performance; finally, finds out the region where the vibration is severe under the normal working state of axial piston pump. The research result provides a theoretical basis for the analysis and optimization of the axial piston pump's vibration test and analysis, and provides a new idea and method for the research on the vibration noise reduction technology of axial piston pump.
