An Experimental Study on Slamming Phenomenon by Forced Impact

J. Ocean Eng. Technol. 2007;21(1):40-44.

Nahm, Jong-Ou;Kang, Hyo-Dong;Chung, Jang-Young;Kwon, Sun-Hong;Choi, Han-Suk;

Graduate School, Naval Architecture & Ocean Engineering, Pusan National University;Graduate School, Naval Architecture & Ocean Engineering, Pusan National University;Naval Architecture & Ocean Engineering, Pusan National University;Naval Architecture & Oc

강제 입수에 의한 슬래밍 현상에 관한 실험적 연구

남종오;강효동;정장영;권순홍;최한석;

부산대학교 조선해양공학과 대학원;부산대학교 조선해양공학과 대학원;부산대학교 조선해양공학과;부산대학교 조선해양공학과;부산대학교 조선해양공학과;

Keywords: Slamming, Impact pressure, Pressure time history, Pressure coefficient, Jet spray

핵심용어: 슬래밍, 충격 압력, 충격 압력 시계열, 충격 압력계수, 제트 스프레이

Abstract

This paper presents the experimental results on slamming phenomenon. The air pressure cylinder was used to ensure repeatability of the impact. The results showed that the adopted experimental technique was excellent in terms of repeatability, compared to that of the free drop tests. The pressure time histories, magnitude of peak pressure and the behavior of jetspray were obtained. The flat specimen was tested for various incident angles. To estimate the incident speed of the specimen, a high-speed camera was used. The high-speed camera was also a useful tool in understanding the behavior.