Вип. 93
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Документ The formulation of nonlinear deformation and fracture of heterogeneous 3d bodies subject to the emergence and spread of cracks under dynamic loading(КНУБА, 2014) Solodey, I. I.; Vabishchevych, М. О.Describes the main output parameters of the problems of fracture mechanics and existing calculation methods for inhomogeneous spatial bodies with cracks in terms of nonlinear dynamic effects.Документ Influence of loading is from a rolling stock on the dynamic behavior of multi-storey building(КНУБА, 2014) Luk’yanchenko, O. O.; Kostina, O. V.; Gerashchenko, O. V.The investigation of the rolling stock load influence on the multi-storey building being under construction in the close to the railroad area has been conducted. FEM calculation models of the ballast prism and the building in the interaction with the base soil were created. The acceleration of the soil at the depth of the foundation laying was obtained and, as the result, its influence on the dynamic behavior of building was evaluated.Документ Parametric resonanse in statically indeterminate frames(КНУБА, 2014) Vorona, Yu. V.; Luk’yanchenko, O. O.; Kostina, O. V.The technique for development and reduction of discrete dynamics models of frames is presented. Construction of the models is carried out using finite element method, generalized coordinates and tools of modern computer software. Parametric resonance in a statically indeterminate frame caused by external excitations is investigated. Main instability domains of the frame are determined.Документ Application of parameter continuation method for investigation of vibroimpact systems dynamic behaviour. problem state. short survey of world scientific literature(КНУБА, 2014) Bazhenov, V. A.; Pogorelova, O. S.; Postnikova, T. G.Authors in their works study vibroimpact system dynamic behaviour by numerical parametric continuation technique combined with shooting and Newton-Raphson’s methods. The technique is adapted to two-mass two-degree-of-freedom vibroimpact system under periodic excitation. Impact is simulated by nonlinear contact interaction force based on Hertz’s contact theory. Stability or instability of obtained periodic solutions is determined by monodromy matrix eigenvalues (multipliers) based on Floquet’s theory. In the present paper we describe the state of problem of parameter continuation method using for nonlinear tasks solution. Also we give the short survey of numerous contemporary literature in English and Russian about parameter continuation method application for nonlinear problems. This method is applied for vibroimpact problem solving more rarely because of the difficulties connected with repeated impacts.