The invention discloses a multi-dimensional
sinusoidal vibration control method and control apparatus. The apparatus comprises an upper computer, a PXI real-time controller, a
data acquisition card, an acceleration sensor and a displacement sensor. The method includes the steps of
system parameter setting,
system self detection,
system identification,
sinusoidal vibration frequency starting, sinusoidal frequency sweeping, and test completing and stopping after frequency sweeping, thereby realizing control on the control apparatus. According to the invention, the control is stable; the apparatus has good
sinusoidal vibration control capability from one dimension to six dimensions and is suitable for the multi-dimensional sinusoidal
vibration control or sinusoidal test. In addition, different initial phases can be set for different control dimensions to form the sinusoidal vibration or motion under several kinds of combination
modes. Meanwhile, an amplitude
identification technology based on combination of an FFT and a filter, a semi-sinusoidal-window stable frequency starting technology, a multi-dimensional driving amplitude on-line updating method, and an acceleration and displacement mixed control method are used for obtaining a satisfying testing effect. Moreover, the apparatus has advantages of simple system, less modules, easy installation, and convenient maintenance.