Dynamic Simulation Of Characteristics Of The A11VO Axial Piston Pump

Hydraulic power transmission and control technology is a kind of industrialcontrol technology which takes liquid as medium and transmits power by liquidpressure. Pump is the power element which called “heart” in the hydraulic system.Compared with the other positive displacement pump, axial variable displacementpiston pump is widely used in various industrial fields due to its small size, highefficiency, compact structure and easiness to realize stepless speed adjustment.Requirement for the performance of swash-plate axial variable displacement pistonpump is higher and higher as for the high-speed development of modern industry. Latestudy work in axial piston pump and manufacturing process restrictions lead to acertain gap between our country and the advanced level of America, Germany, Japanetc in the research and manufacture of piston pump. Status on the basis of analysis ofdomestic and foreign papers swash-plate axial piston pump for the study, from thelevel of the hydraulic system, its theoretical analysis and simulation study.The main content of this thesis:In chapter1, the background and significance of the development trend of thesubject, and domestic and international research status, and research.In chapter2, the first cylindrical cylinder and cone-shaped cylinder swash-plateaxial piston pump plunger kinematics analysis, obtained the same conditions twodifferent types of cylinder piston geometric law of motion, instantaneous flowpulsation characteristics, as well as the flow pulsatility index under different swashplate angle variation. Followed by use of the mechanics of the basic principles of thetapered cylinder swash-plate piston pump parts such as center afterburner spring,plunger and slipper force status for a more detailed analysis of the later chapters ofthe tapered cylinder inclined dynamic study of the disc piston pump provides thenecessary theoretical basis and an important reference.In chapter3, the entire system swash-plate axial piston pump subsystem isdivided, then starting from the flow continuity equation, Bernoulli equation and theNewtonian mechanics theorem, take full account of the axial piston pump leakage,friction, and the volume effect, mathematical theory analysis, the theoreticalmathematical model of the subsystem and the swash-plate axial piston pump axialsubsystem module.In chapter4, the establishment of the swash-plate axial piston pump AMESim simulation model, its dynamic simulation studies. Thesis swash-plate axial pistonpump at a pressure control state, and the characteristics of the pulse pressure and flowcontrol state and transient response characteristics, focusing on the main parametersof the ripple and transient response.In chapter5, the finite element software ANSYS-Workbench, modal analysis andharmonic analysis on the inclined plate axial piston pump spindle to avoid theresonance phenomenon in the radial piston pump at work, completion of the shaftresonance analysis alternating loads the shaft of the harmonic response law.