Mechanical Modelling of Friction Pendulum Isolation Devices

Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 10)

Abstract

Even though different versions of the Friction Pendulum Devices (FPD) can be found on the market and their effectiveness has been extensively proven by means of numerous experimental campaigns carried out worldwide, many aspects concerning their mechanical behaviour still need to be clarified. These aspects concern, among others: (1) the sequence of sliding on the several concave surfaces, (2) the influence of temperature on the frictional properties of the coupling surfaces, (3) the possibility of the stick-slip phenomenon, (4) the possibility of impact-induced failure of some components, (5) the geometric compatibility, and so on. These aspects are less clear the larger the number of concave surfaces of which the device is composed. This paper presents a new way of modelling the mechanical behaviour of the FPDs, by fulfilling: (1) geometric compatibility, (2) kinematical compatibility, (3) dynamical equilibrium, and (4) thermo-mechanical coupling.

Keywords

Base isolators Friction pendulum devices Kinematics Dynamical equilibrium 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Structural Engineering and GeotechnicsSapienza University of RomeRomeItaly
  2. 2.Department of Mechanical and Aerospace EngineeringSapienza University of RomeRomeItaly

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