Analysis And Optimization Of System Performance Of Oil-film Bearing Integrated Test Rig

The experimental study of oil-film bearing is essential to the theoretical innovation of oil-film bearing and the development of production technology.The test rig that was established by our school can reproduce the production conditions under high speed and heavy duty,and further improve the experimental verification of large-scale oil-film bearing.The test rig has an independent oil lubrication system and uses the advanced field bus technology,achieving the automation of equipment operation,while the test system is stable and reliable,providing a strong support to enhance the ability of independent research and innovation of China’s oil-film bearing.In order to respond to the strategic policy of green energy in China and to adapt to the new situation of continuous innovation of production technology,the scientific and advanced nature of oil-film bearing test research should also keep pace with the times.In this paper,the energy flow analysis of the whole system of the test rig is carried out,while the energy efficiency of the test system is evaluated scientifically and the improved method is put forward.At the same way,the qualitative analysis of the material flow ability of the test system is also carried out,and the flow of the substances in the test system is described quantitatively.The use of advanced control methods to improve the speed control accuracy of DC motor of the test rig.The remote monitoring system for the test rig is designed and the remote laboratory platform is established,the intelligent level of the test rig is improved.The main research contents are as follows:First,the energy flow analysis of the test rig system was carried out.By calculating the energy balance model,the energy efficiency of each subsystem and the energy efficiency of the whole test system are obtained.By analyzing the factors that affect the energy utilization of the test system,the method of improving the test system is put forward.Second,the material flow analysis of the test bed system was carried out.The flow ability of each substance during the operation of the test bed was analyzed qualitatively.By calculating and analyzing the material loss of the test bed,the consumption intensity and material productivity of each substance were obtained and put forward the measures to improve the material productivity of the test bed.Thirdly,the control system of motor speed is optimized.Based on the PID control system of the motor speed of the test rig,the fuzzy-PID control system is designed and is simulated by Simulink.The programming software Step7 is used to achieve the application of the fuzzy-PID control system on the PLC,which improves the accuracy of the speed control system and optimize the running performance of the test bed.Fourthly,using the function of Win CC component,the remote monitoring system of the test rig is designed,which realizes the remote client access and mobile terminal access of the test rig.Through the design of website,the remote laboratory operation platform,based on the test rig,is developed,that enhancing the intelligent level of the test rig.