Method for designing vibration isolation optimizing type main vibration isolator of cab

The invention discloses a method for designing a vibration isolation optimizing type main vibration isolator of a cab, belonging to a method for designing a cab vibration isolator. The method comprises the following steps of: on the basis of carrying out harmony response kinetic analysis on a cab suspension system, detecting axial rigidity value and radial rigidity value of a vibration isolator, and converting the obtained axial rigidity value and the radial rigidity value of the vibration isolator to an optimum design variable; detecting advancing direction displacement response amplitude at one point of a soleplate of the cab and one point higher than a seat of the cab, and taking the difference of the advancing direction displacement response amplitudes of one point of the soleplate of the cab and one point higher than the seat of the cab as an optimizing target function; detecting a displacement response value at one point of the soleplate of the cab in the vertical direction, taking the vertical directio