CHARACTERISICS OF VIBRATION RESPONSE CAUSED BY STALL FLUTTER FOR S. F. T (SUBMERGED FLOATING TUNNEL)

Abstract

Nowadays, there are many research reports about submerged floating tunnel (S. F. T.). In this paper, we examined the vibration response of floating tunnel supported by tention legs. We measured angle response and vibration response of the test model of S. F. T. subjected cross flow using by parameters reduced velocity and reduced angle displacement.
From that, we can observed the flatter vibration coupled between angle response and lift motion of S. F. T. and discuss about the mechanism of flattervibration, subjected steady flow, caused by rotating vibration of ballast container mode and some amplitude (3 degrees).