vibratory machine

Analysis and improvement of design diagrams and mathematical models of vibratory lapping machines

Problem statement. The development of energy-efficient and high-performance vibratory lapping machines demands the improvement of their design diagrams and calculation techniques. Purpose. The main objectives of this research consist in detailed analysis of existent design diagrams and mathematical models of vibratory lapping machines; designing the three-mass hanger-type structures of such machines providing circular oscillations of laps; derivation of differential equations describing the motion of their oscillatory systems.

Substantiation of inertial, stiffness and excitation parameters of vibratory lapping machine with linear oscillations of laps

Problem statement. Designing and manufacturing of efficient resonant vibratory lapping machines with linear oscillations of laps demand an accurate and detailed calculation of parameters of their elastic systems and electromagnetic drives. Purpose. The main objective of this research consists in derivation of analytical dependencies for calculating the stiffness and excitation parameters of mechanical oscillatory system of vibratory finishing machine in order to ensure its resonance operation mode.

Аналіз руху коливальних мас вібраційної машини з аероінерційним збуренням з використанням програмного продукту COSMOSMotion

З використанням програмного продукту COSMOSMotion 2006 проаналізовано рухи коливальних мас та маси дебалансу в білярезонансних режимах роботи вібраційної машини з аероінерційним збуренням. Проаналізовано узгодженість отриманих результатів твердотілого моделювання з математичним моделюванням ідентичної системи у програмному продукті MathCAD 12.

Research starting modes of vibration machines with synchronous debalance

The findings of numerical modeling of the vibratory machine start with two unbalanced agents in the case of their synchronous and regular start are included in the article. It is shown that main advantages of the machines with self-synchronizing agents are the ability to reduce resonant amplitudes, dynamic amount of work to be done and gear capacity by using regular start of engines.

Multicriteria analysis of vibro-impact resonant systems with pulsed electromagnetic drive

The article considers two options for accomplishment of vibro-brunt resonant systems with an impulse electromagnetic drive based on asymmetric piecewise elastic characteristics. Basic kinematic, power and energy characteristics of comparative system are presented. Relative and generalized criteria for complex (of multi-criteria) valuation of vibro-brunt system with an impulsive drive are determined.

Effect of elastic coupling dynamics start vibrating machines with debalance exciter vibrations

The run-up of a vibratory machine with an debalanced drive is examined. The influence of stiff coupling installed between an electric motor and a vibration exciter is taken into consideration. Practical recommendations to limit the starting deformations and coupling oscillations are shown.

Rational synthesis of two-frequency resonance vibratory machines

The article tackles the problem of the synthesis of the two-frequency resonance oscillations in the three-mass oscillating system. The stiffness coefficient which provides the multiple two-frequency resonance mode in the case of modernization of the two-mass resonance machines with an electromagnetic drive is defined. The influence of inertance of oscillation mass on the characteristics of working mass acceleration is determined – the maximal value and the correlation between harmonics.