The updated verification procedure of detailed finite element structural models of rocket-space technology for analysis of dynamic loading in flight by the example of the Progress MS cargo transport vehicle

The verification procedure of detailed finite element structural models of rocket-space technology products (spacecraft, launch vehicles, etc.) described in this article extends the capabilities of their verification based on the results of modal tests as it includes additional phases to update the model parameters including the results of actual measurements in operation of these structures. The stiffness properties of structural elements models and dynamic characteristics of structures are updated during the verification procedure. Such a verification procedure makes it possible to obtain qualitatively better models considering the actual operating conditions for structures. The models verified in this way can be used to analyze dynamic loading of structures with a high level of accuracy and also to restore the actual dynamic behavior in operation.