The invention discloses an
attractor migration control method for a
nonlinear vibration isolation system, and the method comprises the following steps: 1), analyzing a
nonlinear vibration isolation system, and building a dynamic model of the
nonlinear vibration isolation system; 2), carrying out the analysis of the global behavior of the nonlinear
vibration isolation system according to the dynamic model, and obtaining a global behavior which comprises the size and position of an
attractor and the intensity of an attraction domain; 3), employing an
attractor migration control strategy according to an analysis result at step 2), and enabling the motion on a large-amplitude periodic attractor to be changed to a small-amplitude
chaotic attractor; 4), employing a
control effect index set, andcarrying out the comprehensive assessment of a line spectrum
control effect after migration control. The method provided by the invention can enable the motion on the large-amplitude periodic attractor to be quickly migrated to the small-amplitude
chaotic attractor, remains the motion on the small-amplitude
chaotic attractor as much as possible, and enables a
system to continuously operate on theattractor which has the minimum amplitude and the low line spectrum intensity.