Vertically-arranged flexible pipe eddy torrent vibration experiment device

The invention discloses a vertically-arranged flexible pipe eddy torrent vibration experiment device. The vertically-arranged flexible pipe eddy torrent vibration experiment device comprises three vertically-arranged testing pipes, a dragging vehicle used for pulling the testing pipes, and a measurement and control system. The dragging vehicle is provided with a vertical dragging frame which can be placed in a dragging pool. The dragging frame is provided with an upper dragging arm and a lower dragging arm which extend out horizontally. By means of universal joints, two ends of each testing pipe are respectively fixed to horizontal installation plates of the upper dragging arm and the lower dragging arm. A tensioning mechanism is arranged on the upper end of each testing pipe. The measurement and control system comprises testing pipe tension sensors, testing pipe shearing force sensors, testing pipes strain sensors and a vehicle speed control device. The testing pipe tension sensors and the testing pipe shearing force sensors are respectively arranged on upper end parts of the testing pipes, and the testing pipes strain sensors are arranged on pipe walls of the testing pipes. The experiment device provided by the invention can solve the experiment problems of an eddy torrent vibration model under a plurality of pipes and can also simulate fluctuation of seawater, the experiment result is closer to the practical condition, and the practical value is high.