Thermal modal test system and method after large buckling deformation of thin-wall structure in high-temperature environment

The invention discloses a thermal modal test system and method after large buckling deformation of a thin-wall structure in a high-temperature environment, and relates to the technical field of aerospace. The metal rubber spring gasket can also be used for isolating the situation that heat on the surface of the thin-wall structure is transferred to the clamp to cause rigidity weakening of the clamp in the high-temperature environment, and on the other hand, the metal rubber spring gasket still has good vibration isolation and sealing effects in the high-temperature environment to further stabilize rigid constraint of the clamp module. The adjustable movable vibration exciter device composed of the three-axis precision sliding platform, the lifting device with the scales and the vibration exciter can effectively perform vibration excitation on the thin-wall structure after thermal buckling large deformation of the thin-wall structure occurs; the problem of continuous vibration excitation of the thermal modal t