Remanufacturability evaluation of piston pump based on remaining life
In order to quantitatively evaluate the remanufacturability of piston pump,the fatigue life was studied with the piston pump as the research object.The rigid-flexible-liquid joint simulation model of the piston pump was established,and the effects of rotational speed and load pressure on the maximum stress and fatigue life of the piston pump were studied.The results showed that the maximum stress on the piston pump increased exponentially with the rotational speed increasing,while the fatigue life of the piston pump decreased exponentially.With the increase of load pressure,the maximum stress increased linearly,and the fatigue life decreased logarithmically.Based on the fatigue life analysis of the piston pump,a technical evaluation system with remaining life and parts processability as indexes was established,and economic and environmental indexes were comprehensively considered.A quantitative evaluation model and method for the remanufacturability of the piston pump were proposed,and engineering application analysis was carried out to verify the rationality and feasibility of the proposed method.