Research On High-parameter Friction Pair Design Platform Of Rotating Machinery With Extreme Working Condition

With the development of rotating machinery toward large-scale and precision,the research on the design of high-parameter friction pair components which under high-speed,high-pressure,high-temperature and other extreme conditions is becoming more and more important,but there are several problems:design method dispersion,low degree of scientific design software and the design ability is relatively weak.This article takes the high-parameter friction pair of rotating machinery with extreme conditions as the research object,and conducts a research on the high-parameter friction pair design platform for the standardization and scientific requirements of high-parameter friction pair design.The main research contents of this article are as follows:Firstly,in order to sort out the multi-source knowledge of the design platform,improve the efficiency of knowledge acquisition,and reduce the development difficulty of the design platform,this article combines the integrated framework of tribology knowledge integration on the design platform.The function-quality-constraint analysis method was used to decompose the design requirements of the design platform,and the axiomatic design method was used to decompose the design platform and divide the modules to establish the high-parameter friction pair design platform model.Secondly,based on the design platform model,the modules were implemented separately,and the design platform was compiled using MATLAB GUI.Researched the data flow and data storage method in the design platform,constructed the basic function module,designed the login usage method of registered users and non-registered users,constructed the function guarantee module,connected the design platform with each computing software,constructed the expansion module,designed The intelligent suggestion system and the remote service system have constructed intelligent modules.The design platform was evaluated through three design examples of high-speed static pressure bearing,high-speed high-pressure mechanical seal and large-diameter low-speed heavy-load thrust bearing,which proved the feasibility of the design platform and analyzed the optimization direction of the design platform.Finally,in order to expand and supplement the design platform and increase the reliability of the design platform results,the high-parameter friction pair test is studied.Renovated the horizontal half-size sliding bearing test bench,designed the joint drive scheme of electric spindle and gear box,constructed a high-speed static pressure bearing test bench;added a two-phase flow detection device and high-temperature device to the mechanical seal test bench,constructed A high-parameter mechanical seal test bench was developed;a heavy-duty thrust bearing test bench was constructed using electromagnetic loading as the loading scheme through the idea of module division.In conclusion,this paper studies the development of the design platform for friction pairs of rotating machinery under extreme conditions and the corresponding high-parameter friction pair tests.The research results obtained show that the use of knowledge flow and axiomatic design methods can effectively improve the efficiency of knowledge acquisition and reduce the development difficulty of the high-parameter friction pair design platform.Through the design of the high-parameter friction pair test bench,the test data can be combined with the results of the design platform to improve the reliability of the design results.The built design platform can improve the scientific of high-parameter friction pair design,and can provide reference for the design of other design platforms.