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A new single degree-of-freedom resonance device

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Abstract

A new single degree-of-freedom (1 DOF) resonance device was developed. It mainly comprises a linear motor, a vibrating screen, a supporting spring set, a supporting frame and a damper set. Forces acting on the vibrating screen were found. A differential equation for describing the forces was set up. Equations that were used to evaluate the exciting force and exciting frequency in resonance were derived from the solution to the differential equation. In addition, an equation for evaluating the deformed magnitude of the damping springs in the damper set was presented so that the suitable damping may be obtained. Finally, a Matlab/Simulink model of the new 1 DOF resonance device was also built. Displacement-time curves of the vibrating screen under four conditions were obtained in the use of the Matlab/Simulink simulation. The curves indicate that it can shorten the time for the vibrating screen to be into the stable resonance with increasing the damping, and it can lengthen the time with increasing the vibrated mass or amplitude, but every given angular frequency cannot acquire the desired amplitude value of resonance.

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Authors and Affiliations

  1. College of Engineering, China Agricultural University, Beijing, 100083, China

    Gai-li Gao  (高改梨)

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  1. Gai-li Gao  (高改梨)
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Correspondence to Gai-li Gao  (高改梨).

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Gao, Gl. A new single degree-of-freedom resonance device. J. Cent. South Univ. 19, 2782–2787 (2012). https://doi.org/10.1007/s11771-012-1342-5

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  • DOI: https://doi.org/10.1007/s11771-012-1342-5

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