Analysis Of Experiment And Thermal-Mechanical Coupling Finite Element Of Self-Lubricating Liner

With the high-speed development trend of mechanical system,the more and more demand for the material of high thermal and mechanical properties.Compared with conventional joint bearing,self-lubricating joint bearings is widely applied in various fields for it’s high carrying capacity,good anti-friction ability, maintenance- free,etc.Especially applied more in the aerospace,weapons equipment, railway equipment,etc.In real operating conditions,there are often the aging and degumming of liner because of poor cooling,which make the thermal equilibrium temperature of self-lubricating bearings become the key indicator.This paper treat self-lubricating bearings liner as the study object,conducted thermal coupling analysis will help to enhance the performance of self-lubricating joint bearings.In this paper,self lubricating liner as the research object and Abaqus software as the tool,built the finite element models of semi-ring bushing experiment(high-speed light-load conditions) and self-lubricating bearing experiment(low-speed heavy-load conditions).In condition of thermal-mechanical coupling,study the self-lubricating liner temperature field of high-speed light load and low speed heavy load;Based on numerical analysis method,analyze deformation and stress field of the models under static load condition.By comparing FEM simulated results with experimental results,the biggest relative error of simulated temperature rise of semi-ring is 17.7%,and the biggest relative error of liner about deformation under static loads is 16.4%;As for the FEM simulated results of self-lubricating bearing experiment,the biggest relative error of temperature rise is18.6%,while the biggest relative error of deformation under static loads is 18.8%.Finally,based on the Python language,expressed finite element modelings,calculation and post-treatment processes with command stream.The results showed that the finite element temperature field and the stress field with the thermal-mechanical coupling method of self-lubricating liner coincide with the experimental results,and provides a certain reference value for related research self-lubricating joint bearings.