A two-dimension measurement mechanism for hydrodynamic performances of a seaworthiness water surface model

A two-dimension measurement mechanism for hydrodynamic performances of a seaworthiness water surface model comprises a base which stretches across and is slidably supported on trailer measuring bridges. A support frame penetrates through and is fixedly connected with the base. A pair of pulleys is laterally arranged above the base. A steel wire rope is rolled on the pair of pulleys, wherein one end of the steel wire rope is connected with a guide rod and the other end is connected with a lifting rod. The lifting rod penetrates through the base and can slide up and down. The guide rod slides in a guide holder and the lower end of the guide rod is provided with a balance weight. A pulling line is fixedly arranged between the upper end and the lower end of the lifting rod; and the pulling line is wound through a driven wheel. The installation shaft of the driven wheel is connected with a rotation potentiometer I. The bottom end of the lifting rod is provided with a resistance meter. A connecting base is fixedly connected under the resistance meter. The connecting base is provided with a transverse rotation shaft. A longitudinal trim rocker panel is fixedly arranged on the rotation shaft. One end of the rotation shaft is connected with a rotation potentiometer II. The support frame is provided with a vertical linear guideway pair II for guiding the lifting rod in the vertical motion. The two-dimension measurement mechanism is capable of measuring a plurality of hydrodynamic performances of the water surface model; the measure precision is high; and measurement stability is good.