Abstract
The article presents a solution to the problem of dynamic loading of a perforated partition located in the fuel tank of a launch vehicle. A technique for calculating the dynamic loading of the partition is described. Its equation of motion was decomposed into components and the loads at harmonic oscillations of the launch vehicle were calculated. The acceleration of the attachment points and the acceleration of the oscillators simulating the oscillations of the fuel tank, obtained from the solution of the general dynamic problem for assessing the hydrodynamic force for the launch vehicle, were given as the initial data for the dynamic calculation of loads. At this stage, the load on the partition was calculated, taking into account the added mass of the liquid in the event of an emergency shutdown of the propulsion system, as one of the most heavily loaded for the system under discussion. Non-linear dynamic analysis was used to calculate the loads on the perforated partition. As a result of the calculation, forces were obtained in the attachment points of the element in question.
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