Study on vibration characteristic of medium-speed mill with vibration-isolated foundation based on dynamic interaction

Based on the dynamic interaction between structure and equipment,the vibration response of medium-speed mill with spring vibration-isolated foundation is tested in site.According to the test results,the vibration safety of the mills is evaluated.A finite element model is built with ANSYS,and then modal analysis and harmonic response analysis are carried out.The test results are basically in accordance with the numerical analysis results.The influence of the number of vibration isolator and the mass ratio of foundation bedplate to mill on the vibration of mill is also analyzed.The research conclusion can be referred to the design of shock absorption for the medium-speed mills.