STAND FOR RESEARCH Nonlinear Oscillations

摘要

Stand for investigation of nonlinear vibrations relates to educational equipment and can be used in teaching laboratories vibration theory. A device consisting of a long vertical shaft of a certain diameter, an upper end of which is rigidly connected to the frame formed by two uprights with a crosspiece at the top and the fixed abutments, and the bottom located in the spherical bearing of the frame, the shaft fastened equal angle levers, provided with terminals, with the slots and the screws at the ends, which are located in fixed abutments of the frame, with the possibility of displacement along a shaft and fixed in position and in its lower part - a flywheel of vibrato but also kymograph. The disadvantage of this device is that it is intended for the investigation of vibrations only at different shaft stiffness coefficients. The proposed apparatus is provided with a terminal of the flywheel, and an upper end of a vertical shaft located in the hole of terminals fixedly connected to the frame, and a stand provided with a set of flywheels with different moments of inertia, but with the same diametral dimensions of their meals. It is possible to study the vibrations not only with different coefficients of stiffness of the shaft, but at different moments of inertia of the flywheel, ie at different elasto-inertial parameters of the oscillatory system of the stand.