Dynamic damping of vibrations of technical object with two degrees of freedom

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Khomenko, A.P.^1 ; Eliseev, S.V.^1 ; Artyunin, A.I.^1

Irkutsk State Transport University, 15, Chernychevsky St., Irkutsk

664074, Russia^1

关键词: Frequency characteristic;    Frequency diagrams;    Oscillatory system;    Partial frequencies;    Structural diagram;    Technical objects;    Two degrees of freedom;    Vibrating machines;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/8/082025/pdf
DOI  :  10.1088/1755-1315/87/8/082025

来源: IOP

【 摘 要 】

Approach to the solution of problems of dynamic damping for the technical object with two degrees of freedom on the elastic supports is developed. Such tasks are typical for the dynamics of technological vibrating machines, machining machine tools and vehicles. The purpose of the study is to justify the possibility of obtaining regimes of simultaneous dynamic damping of oscillations in two coordinates. The achievement of the goal is based on the use of special devices for the transformation of motion, introduced parallel to the elastic element. The dynamic effect is provided by the possibility of changing the relationships between the reduced masses of devices for transforming motion. The method of structural mathematical modeling is used, in which the mechanical oscillatory system is compared, taking into account the principle of dynamic analogies, the dynamically equivalent structural diagram of the automatic control system. The concept of transfer functions of systems interpartial relations and generalized ideas about the partial frequencies and frequencies dynamic damping is applied. The concept of a frequency diagram that determines the mutual distribution of graphs of frequency characteristics in the interaction of the elements of the system is introduced.