A complete analysis of the current state of the suspended structure for mounting loudspeakers and Wi-Fi transmitters in the centre of the dome of Pavilion Z. It was also requested to check the use of heavier loudspeakers. After the analysis, the joints were reinforced and the main steel suspension cables were replaced, as the original ones showed signs of corrosion. The dome has a diameter of approximately 100 m, the speakers are approximately 12 m above the ground, and the cables sag by 5.5 m.
A unique calculation method was used to analyse the structure – dynamic relaxation. In this method, the static calculation is performed as a dynamic calculation in the time domain with artificially increased damping. Once the damping force system has stabilised, the resulting state corresponds to the state of static equilibrium.
This method can also handle difficult-to-converge non-linear calculations. Non-linearity is caused by cables whose shape is not known in advance; they are only shaped during assembly to a state of static equilibrium.
