Similar scaling determination method for impact vibration response of complex thin plate structure

The invention belongs to the technical field of aerospace structures, and discloses a similar scaling experiment method for impact vibration response of a complex thin plate structure. Providing an impact response similarity method based on statistical energy analysis, virtual modal synthesis and a dynamic similarity theory; the virtual modal synthesis obtains a steady-state response function of the subsystem through statistical energy analysis, and further fits a frequency-response function frequency band for constructing a virtual modal synthesis coefficient; a method of combining statistical energy analysis, a virtual modal synthesis method and a dynamic similarity theory is adopted to deduce a time domain response and impact response spectrum similarity relation of the complex thin plate structure under the impact load effect. The impact response of the prototype structure is predicted through the similarity relation and the scaling model, so that the experiment cost is reduced, and ...