Gursky V. Synthesis of the nonlinear poly-frequency vibratory machines with resonance modes

The actual scientific and applied problem of machine science – development of a generalized methodological approach, covering issues of synthesis of elastic-inertial, power parameters and frequency characteristics of multi-frequency vibration systems for providing resonant operating modes and increasing the efficiency of their functioning is solved in the dissertation. The use of a pulse electromagnetic actuator for the implementation of two-frequency and vibro-impact machines of a definite structure and technological purpose is substantiated. The designed algorithm for the synthesis of elastic-force parameters of vibration systems with piecewise linear elastic characteristics is developed. The vibro-impact systems of the increased efficiency of functioning which according to the indicator of energy efficiency of functioning are dominated by classical harmonic resonance systems in 2 times, vibration damages in 3 times are realized. The established calculation formulas for modernization of existing harmonic machines in two-frequency systems are received. The problem of providing dynamic rigidity of structures of working mass with their optimization by frequency-mass index is considered. For the implementation of vibro-impact systems, it is proposed and substantiated by checking the strength of the circuit with one flat spring and two intermediate polymer-metal cylindrical supports.