水槽試験における画像処理の応用 : その2 3次元粒子追跡法による損傷・転覆船舶の運動計測

概要

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The motion measurement of the models in tank test is one of the important items as well as the measurement of hydrodynamic force, wave and flow fields. Various measurement techniques such as ultrasonic, mechanical and optical type are used for the motion measurement of the model. Optical motion measurement technique recently becomes popular because of no friction effect in the mechanical parts. Although the technique analyzing the image taken by the video camera has the defect due to low image and time resolution, it can measure the submerged mooring object and it is also possible to measure the flow and wave field as well as the motion of the model simultaneously by PTV jointing used. In this paper, the circular target stuck can be tracked by 2 underwater cameras, thus measurement system of the 3-dimensional motion of the model was developed with the confirmation of its validity. The 3-dimensional measurement of whirling motion during towing of damaged and capsized ship bow part of the broken ship mostly immersed as an example.
社団法人日本船舶海洋工学会の論文
2000-09-04