Optimal parameter calculation method for vibration absorber of floating slab ballast bed

• Main Authors: LIU XUEFENG, SHAO ZHUANG, WU SIXING, JANG JE-SUN, GUO XIAO, LI JUNXI, MA JIAJUN
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a floating slab ballast bed vibration absorber optimal parameter calculation method, which comprises the following steps of: based on a finite element model and/or a modal test, obtaining a vibration mode parameter of a floating slab under a resonance frequency needing to be suppressed; based on the vibration mode parameters and the arrangement positions of the vibration absorbers on the floating slab, the equivalent mass and the equivalent stiffness of the arrangement positions on the resonant frequency are obtained; based on the equivalent mass and the equivalent stiffness of each arrangement position on the resonant frequency, the equivalent mass ratio of the vibration absorbers on each arrangement position relative to the floating slab on the resonant mode is obtained; obtaining an optimal coherence formula and an optimal damping formula; and on the basis of the optimal coherence formula, the optimal damping formula and the equivalent mass ratio of each vibration absorber relative