"Parameter inversion and prediction model application of marine rubber isolator"

Abstract

"With BE type rubber isolator as the research object, the hyperelastic and viscoelastic constitutive parameters of rubber materials were inverted through ABAQUS and ISIGHT joint simulation, based on the rated parameters of the isolator, and the prediction model of the rubber isolator was established using the inversion parameters. The results showed that the errors of the vertical, direction, and transverse static stiffness and three-dimensional dynamic stiffness were all less than 7%. When the prediction model was used to explore the effects of frequency, amplitude, and preload of rubber isolator on dynamic stiffness, the simulation results were basically consistent with the experimental results of similar rubber devices. When the prediction model was applied in the system level vibration simulation, the simulation results could match the vibration test results well. "

Keywords

• rubber isolator，constitutive parameter， parameter inversion， dynamic stiffness， characteristic analysis， prediction model，