소형 선박용 Azimuth 추진장치 상부 케이싱 내의 열화발생에 관한 연구

This paper is an experiment and numerical analysis on the temperature distributions in the upper casing of small ship's azimuth thrusters by using infrared thermography camera. At during small ship's azimuth thrusters revolution, the resulting frictional heat has degradation of thrusters. An experimental study is performed to obtain basic data for oil cooler system design that is solvable under such frictional heat. While rotate with l800rpm the shafting, temperature and thermal imaging in upper casing was measured. As the experiment is being performed, shafting temperatures are measured using infrared thermography cameras, and the shafting temperature data are compared with the temperature data from the digital thermometer in the casing. With the results of this experiment and numerical analysis, we are able to obtain applicable data for oil cooler system design and predict the performance and structural design required for installation of oil cooler system.