Influence of the main parameters of a dual-mass oscillation system on its dynamic characteristics

Introduction. The goal is to perform a comparative analysis of energy consumption during the operation of a resonant two–mass mechanical system, depending on the point of application of the driving force to the first or second mass. The object of research is an oscillatory system of a vibrating machine consisting of two masses interconnected by elastic and dissipative elements. In addition, the first mass is connected to a fixed base through elastic and dissipative elements.Materials and methods. The research uses the main provisions of theoretical mechanics, mathematical modeling and simulation experiment in the Matlab-Simulink environment.Results. According to the results of research on a mathematical model of a two-mass oscillatory system with a point of application of the driving force to the first mass, it was found that with a driving force of 10 kN and a frequency of 80 rad/s, the amplitude of the oscillations of the first mass is 0,6 mm, and the second is 1,8 mm, while the amplitude gain is 3,94. To achieve the specified driving force, a directional debalance exciter with a mass of 10 kg of debalances must have an eccentricity of 0,16 m, and the power required to drive the oscillation exciter is 21,2 kW. In the case of applying a driving force to the second mass, it is possible to achieve the same amplitude of oscillations of the first mass (0,6 mm) with a driving force of 5 kN, an eccentricity of 0,078 m and a drive power of 4,9 kW, while the amplitude gain is 8,44.Originality. Thus, due to the dynamic properties of the two-mass system, the option with the point of application of the driving force to the second mass is 4,3 times more energy efficient than the option of applying the driving force to the first mass.

show abstract

Section: рисунок 1 -расчетная схема двухмассовой колебательной систем...unclassified

Impact of force application point in two-mass oscillation system on its energy efficiency

Zedgenizov

Faizov

2023

Vestn. SibADI

Self Cite

View full text Add to dashboard Cite

show abstract

Type series of resonant vibration equipment for concrete mixtures compaction and its main parameters calculation method

Zedgenizov,

Faizov

2023

Vestn. SibADI

View full text Add to dashboard Cite

Introduction. Increasing the energy efficiency of vibration technology poses a number of challenges for its developers. A promising direction for reducing energy costs for driving vibration machines is the use of the resonance phenomenon. Due to the dynamic properties of the oscillatory system, it is possible to significantly reduce the power consumption of resonant vibration equipment, and in some cases, improve the quality of the products. The purpose of this article is to develop a standard range of resonant vibration equipment for compacting concrete mixtures and a methodology for calculating its main parameters.The object of research is the oscillatory system of a vibrating machine, consisting of two masses connected by the elastic and dissipative elements. In addition, the first mass is connected to a fixed base through elastic and dissipative elements.Materials and methods. The basic principles of theoretical mechanics, mathematical modelling and statistical processing of results were used in the research.Results. According to the research results, it was established that with an increase in the mass ratio of the oscillatory system, the dynamic coefficient decreases, and the width of the resonant zone increases. The regression equations are given. It has been established that with increasing rigidity of the working body, the dynamic coefficient decreases, and the horizontal section on the frequency response, the width of which does not change significantly, shifts to the region of higher frequencies. With an increase in the damping coefficient, the dynamic coefficient decreases, and the width of the resonant zone and the frequency range practically do not change. A wide range of nomenclature and masses of precast reinforced concrete justifies the development of a standard-size range of resonant vibration equipment. A standard range of light (up to 2 tons), medium (2-6 tons) and heavy (6-10 tons) types has been developed. Based on the analysis and generalization of research results, a method for calculating resonant vibration equipment for compacting concrete mixtures has been developed, which makes possible to increase its energy efficiency.

show abstract

Research results of resonant vibration equipment for compaction of concrete mixtures on a physical model

Zedgenizov,

Faizov

2024

Vestn. SibADI

View full text Add to dashboard Cite

Introduction. The purpose of this article is to confirm the results of research on resonant vibration equipment for compacting concrete mixtures obtained using a mathematical model. The object of research is an oscillatory system of resonant vibration equipment consisting of two masses interconnected by elastic and dissipative elements. In addition, the first mass is connected to a fixed base through elastic and dissipative elements.Materials and methods. The main provisions of the theory of similarity and statistical processing of experimental data are used in the research. The required number of repeated experiments was determined statistically, and the reproducibility of the experiment was verified by the Cochran criterion. Results. The criteria and indicators of similarity of processes occurring in the system of resonant vibration equipment have been developed, formulas for the transition from the parameters of nature to the parameters of the physical model have been proposed. The technical characteristics of the physical model are presented.During the experiment, oscillograms of the movements of the vibrator and the working body which are shifted relative to each other by an angle of π/2 were obtained. At the same time, the amplitude of vibrations of the vibrator significantly exceeds the amplitude of vibrations of the working body.Discussions and conclusions. The presented dependences of the amplitudes obtained on mathematical and physical models qualitatively repeat each other. In the studied frequency range of the driving force, the maximum error is 12%. This confirms the results obtained on the mathematical model of resonant vibration equipment.

show abstract

Influence of the main parameters of a dual-mass oscillation system on its dynamic characteristics

Cited by 3 publications

References 7 publications

Impact of force application point in two-mass oscillation system on its energy efficiency

Impact of force application point in two-mass oscillation system on its energy efficiency

Type series of resonant vibration equipment for concrete mixtures compaction and its main parameters calculation method

Research results of resonant vibration equipment for compaction of concrete mixtures on a physical model

Contact Info

Product

Resources

About