Study on thermal performance and simulation method of oil medium steel-BMC mechanical joints

Abstract

In order to study the thermal performance and simulation analysis method of oil medium steel-BMC mechanical joints. Discrete analytical methods of the actual solid contact proportion and actual lubricating oil contact proportion of the oil medium steel-BMC mechanical joints were established respectively. A theoretical model of the thermal behaviour parameters and equivalent thickness of the oil medium steel-BMC mechanical joints was developed and the influence of preload and roughness on its thermal behaviour parameters was investigated. A virtual material-simulation analysis method for oil medium steel-BMC mechanical joints considering contact weights has been developed. The temperature variation of oil medium steel-BMC mechanical joint specimens was investigated using virtual material-simulation analysis methods and experimental methods. It was found that the maximum relative error between the two methods is −2.1%, verifying the validity of the analytical method for the actual contact proportion of oil medium steel-BMC mechanical joints and the theoretical model for the thermal behaviour parameters of oil medium steel-BMC mechanical joints. Finally, the thermal performance and thermal mechanical coupling performance of the BMC bed foundation were investigated through simulation analysis, proving that the oil medium steel-BMC mechanical joints have a significant impact on the overall performance of the machine tool.