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Information × Registration Number 0207U008979, 0104U003377 , R & D reports Title Evalution of methods for stading forced vibration of nonconcervative elastic systems in the presense of local disturbance of material continuty popup.stage_title Head Matveev V.V. Zinkovskiy A.P., Registration Date 26-12-2007 Organization Institute for problems of strength NASci of Ukraine popup.description2 An approximate method and the results of its validation by solving analytically the problem of forced vibrations of an elastic body with a bilinear asymmetric response of the restoring force, simulating the effect of a closing crack, are described. Procedures and results of numerical, experimental, and experimental-calculation studies on forced vibrations of rods with a closing crack are presented. The results of experimental investigations into the effect of different types of coatings, including those with local discontinuities, on the vibtation damping of thin rods are given. The method and results of determining vibration diagnostics parameters of fatigue damages in rectangular plates are considered. The results of determining the effect of parameters of local damages and irregularity in a blade row on the forming of natural and resonance vibtations of regular systems, including those with the cyclic symmetry, with regard for the type of coupling between their subsystems are presented. The resultsof investigations concerning the choice of a rational analytical description of fatigue damage accumulation in structural elements with local nonuniformities are reported.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close