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Information × Registration Number 0221U102852, 0118U003638 , R & D reports Title Development of the prediction method for space probe platforms capacity and themperature stability popup.stage_title Head Bobyr Mykola I, Registration Date 10-02-2021 Organization Public organization organization of veterans and graduates of the Institute of Energy Conservation and Energy Management of the National Technical University of Ukraine "Kyiv Polytechnic Institute named after Igor Sikorsky" popup.description2 A simulation model was developed for the first time. That model takes into account variable temperature gradients, the scheme of reinforcement of multilayer PCM under conditions of complex dynamic and vibration load. For the first time, a phenomenological model of scattered destruction of anisotropic structural materials was developed. The main thermopower parameters of the operational load and the anisotropy coefficient were taken into account. A new method for estimating the strength of bolted joints of composite panels has been developed. The formula for estimating the stress concentration factor for this type of connections is obtained and substantiated. Algorithms for vibration analysis of the space platform sotopanel power platform design during launch into Earth orbit have been developed. The technique is created and the finite-element modelling of the behaviour of the structure with composite materials under the conditions of complex thermopower operational load for the stages of output and operation in Earth orbit is carried out. For conditions of complex stress state, the deformation criterion of fracture at the stage of macrocrack formation is obtained, which considers the influence of two fracture mechanisms (separation and shear) and the scalar parameter of material damage. Based on the energy approach to the process of material destruction, a generalized method for assessing the durability of structural elements containing stress concentrators (deformations). Based on the calculations in ANSYS APDL, the characteristics of stress-strain state are determined and the strength of the panel of the body of the payload unit of the spacecraft type "Sich-2M" at loads that occur during the launch into orbit of the spacecraft (acceleration, harmonic and random vibration). Product Description popup.authors Babak Anton M Bondarets Oleksandr A Koval Victor V Krishchuk Mikola G Musiienko Olha S Rudakov Kostyantyn M. Tymoshenko Oleksandr V Pham Duc Q popup.nrat_date 2021-02-10 Close