Aerospace Instrument-Making Annotation << Back Analytical model for forecasting of the dynamic condition of an aeronautical engineering object on impact V.V. Tishkov, V.V. Firsanov The analytical model of calculation of the dynamic state of the aeronautical engineering object of the oblong shape, for example, a fuselage of an airplane or a space flight vehicle, on longitudinal impact about a firm barrier is offered. The head area of object is represented as plastically deformable rotational shell loaded with concentrated impact force in a pole, and other part of object - by an elastic rod with the rigidity discretely changing on their lengths that are taking into account influence of “instrumental filling”. The elastic part of the solution for the rod is under construction based on wave theory of Saint-Venant and the Laplace transformation. Calculation of overloads of the instrumental container is executed, the analysis of influence of plastic deformations is given and comparison with results received with the help regression the models, constructed on the basis of unique experimental data is executed.