Study On Structural Vibration Isolation System

With the development of science and technology, Machinery and equipment increased power, speed increased, but the support structure is the development of lightweight. When high-speed machinery and equipment installed in the lightweight structure ,the vibration is more intense then before .This not only accelerated loss of machinery and mechanical structure and shorten equipment life and affect the performance of equipment, but also generates the noise affecting staff and nearby residents ,In order to reduce the vibration hazards, The researchers conducted a large number of research and practice and summarized the experience of reducing vibration method and get a lot of useful research results.Combination of lightweight construction and high-speed machinery, so have to consider the vibration of the basis, and there were a lot of work about the flexible base vibration isolation system . Consider the parameters of mechanical impedance and the four-parameters method, can be easily modeled. But the four-parameter method only study one-dimensional vibration isolation system. This paper expand the four-parameter method and can study multidimensional vibration isolation system. The power flow of multidimensional vibration isolation system can be easily calculated.Search and read a large number of domestic and foreign literature, and calculate the mechanical impedance of the driving forces in a particular direction. Make out the power flow expression of multiple forces and multiple mounts. Using MATLAB programming software simulation to figure out the system's power frequency response function curves. Discussion of the role of each force on the system. Change the parameters and location of isolator or the parameters of base plate to figure out another curves. After comparing the curves to obtained the effects of various parameters. Finally, recommendations on the optimization of vibration isolation or the actual situation of vibration isolation.