Chaban V. Non-linear oscillations and stabilization of structures with metallical nonrigid cables

The Thesis is dedicated to problems of refinement of static-dynamic calculations of structures with suspended structural members (suspended and cable-stayed bridges, covers, power transmission lines etc.) - at the expense of compiling correct dynamic models of these facilities taking into account feature and condition of their reaction. The simulation technique of suspended construction and non-linear interaction of designs of structures with nonrigid supporting elements is designed. The computational static-dynamic model of a transition unit of suspended members carriers through area of deformed pylons bearings (or fixed bearings) with allowance for of friction between adjacent surfaces is offered, influencing friction in this unit on free and forced structures vibrations is estimated. Influencing different friction in structural suspended members and cable-stayed structures on amplitudes of forced vibrations is rotined, influencing change of this friction on oscillation structures frequencies underthe different forms is estimated