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Information × Registration Number 0219U006024, 0117U001822 , R & D reports Title Development of mathematical models and techniques for analysis of nonlinear torsional oscillations in armored vehicles' diesel engines. popup.stage_title Head Uspenskyi Borys, Кандидат технічних наук Registration Date 29-03-2019 Organization A. Podgorny's Institute of Mechanical Engeneering Problems of the National Academy of Science of Ukraine popup.description2 Methods for analysis of free and forced torsional oscillations of diesel engines' power transmissions have been developed. Some of them take into account the influence of several non-linear couplings. The possibility of resonance of torsional oscillations in the power transmission of the 6TD engine with the engine pistons gas forces moments was discovered. A method for analysis of the parametric sensitivity of the frequency of free torsional vibrations in a power transmission to changes in its elastic parameters have been developed. Recommendations on the detuning of the transmission from resonance are formulated. A technique for experimental analysis of linear oscillations of shallow shells has been developed. A precise method for the numerical analysis of such oscillations is proposed. A nonlinear model with a finite number of degrees of freedom is constructed for the case of kinematic excitation of a shallow shell. The bifurcation behavior, periodic, almost periodic, and chaotic oscillations are investigated. Product Description popup.authors Успенський Борис Валерійович Чешко Ксенія Федорівна popup.nrat_date 2020-04-02 Close