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IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: General 2: Structural Analysis and Design

Analysis of adaptive cable dome

< Table of Contents for General 2: Structural Analysis and Design
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: General 2: Structural Analysis and Design
  • Title: Analysis of adaptive cable dome
  • Author(s): Stanislav KMET, Marek MOJDIS
  • Keywords: adaptive cable dome, actuator, active control, tests, system behaviour, finite element analysis
Abstract
This paper describes a newly developed adaptive cable dome in the Levy form which has the ability to alter its stiffness configuration and stress properties in order to adapt its behaviour to current loading conditions. This novel structure contains sensors that detect forces from the system and an action member that adjusts its stiffness and stress state, making the structure more rigid or flexible depending upon the actual load applied. This system consists of forty-two tensioned cables, six compressed struts and a central strut which is designed to function as an actuator. Results of the experimental and theoretical analyses are compared. Tests are aimed at verifying the cable dome's ability to adapt its state of stress to changing load cases in order to maintain reliability of the system. Tests confirmed the functionality of the developed adaptive system and the applicability of the proposed electronic equipment, software, computational models and control commands. Results demonstrated that the behaviour of the adaptive cable dome obtained by tests can, generally be closely predicted numerically by using the nonlinear finite-element analyses.

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