Open AccessThe influence of the vertical cantledge mass on the vibratory drum vibrations during the material compaction
Author(s) -
V. F. Tarasov,
I. V. Boyarkina,
G. N. Boyarkin,
V. S. Serebrennikov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1441/1/012119
Subject(s) - vibration , drum , vibrator (electronic) , amplitude , physics , mechanics , added mass , shock (circulatory) , torsional vibration , inertia , mass ratio , shaker , structural engineering , acoustics , classical mechanics , engineering , optics , mechanical engineering , medicine , astrophysics
The road roller vibratory drum is considered as a three-mass vibration system consisting of the eccentric weight mass m 1 , vibratory drum mass m 2 , additional mass m 3 , which is transmitted to the vibratory drum axis through the roller frame. Differential equations of vertical vibrations were formulated, they were solved, analytical expressions were obtained of the amplitude A 1 of the vibrator drum vertical vibrations and of the amplitude A 2 of the additional mass m 3 vibrations, rigidly connected with the road roller frame. The dependences of the vertical vibration amplitudes A 1 and A 2 on the vibration frequency, mass ratio ( m 1 + m 2 ) and m 3 , stiffness factors and viscous friction factors of the soil and rubber-metal shock absorbers have been established. The additional mass m 3 is considered as an additional shock absorber that protects the roller frame from vibration. The differential equation of the additional mass m 3 vertical vibrations has been obtained, which are excited by the harmonic inertia force. The analytical dependence conclusion for the determination of the dynamic factor K d as the ratio of the dynamic and static vibration amplitudes of the additional mass m 3 of the vibratory drum have been specified. The specified dependence of the driving force transfer factor K determination on mass m 3 to the roller frame has been obtained. The diagrams of the dependence of K d and K factors on the frequency ratio of forced and natural vibrations of the mass m 3 are constructed.