Quintuple Friction Pendulum Isolator Behavior, Modeling and Validation

Keywords: Quintuple Friction Pendulum Isolator, Spherical Sliding Isolator, Multi-stage Adaptive Behavior, Analytical Model, Computational Model

Abstract: This report describes the Quintuple Friction Pendulum isolator, which is a spherical sliding isolator with six sliding surfaces. Analytical models of behavior are presented to describe the force-displacement loop for two general cases of geometric and frictional parameters. The analytical model is useful in performing simplified calculations and in verifying more complex computational models. Computational models are also presented which may be implemented in commercial software. A model isolator was tested and the results are used to validate the analytical and computational models.