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MIL-S-901D 충격시험과 과도응답해석을 이용한 DDAM 특성에 관한 연구
송오섭(Song, Oh-Seop),김룡(Kim, Yong) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.11
Non-contact underwater explosions against surface ship could cause extensive equipment damage during wartime service. Thus, the need to develop methods for the design of shock resistant equipment structures and systems was strongly established. In analytical methods, DDAM(Dynamic Design and Analysis Method) and transient repsonse method are used for ship shock design. In this paper, to analyze the characteristics of DDAM, medium weight shock test, DDAM and transient response analysis for missile system equipment are performed.
함정 탑재장비의 MIL-S-901D 경중량 충격시험과 동적 설계 해석법의 특성 비교
김경수(Kyung-Soo Kim) 대한기계학회 2020 대한기계학회 춘추학술대회 Vol.2020 No.12
The equipment installed in the ship must be verified for its shock resistance against non-contact underwater explosions. The domestic navy requires test and evaluation applying MIL-S-901D, a US Navy shock test specification as a method of verifying the shock resistance performance of equipment. In general, analytical verification is conducted at the time of product design to minimize the risk due to failure of the shock test in the process of developing equipment. For equipment that does not apply resiliently mounts when installed on a naval ship, the DDAM is analytical method which is mainly used. In this paper, the validity of the analytical method is verified by comparing and analyzing the shock response characteristics derived from the light-weight shock test of MIL-S-901D and DDAM.
하성록(Sung Rok Ha),조기대(Ki Dae Cho),강광희(Kwang Hee Kang),양성철(Sung Chul Yang),허기영(Gi Young Hur) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
A naval radar system mounted in ships is exposed to a variety of natural and man-made environments during its operational life. All of all of these events need to be considered in the design of the radar. Specially, a shock wave initiated by detonation of explosive device has a bad influence on life expectancy. Therefore the radar is required to survive in the shock and return to an operational state after the shock has occurred. In this paper, the shock response is analyzed by the dynamic design analysis method (DDAM) and design margin of the radar is evaluated from the results of DDAM.
상.하 받침대를 갖는 대형 함정 탑재장비의 DDAM 해석을 위한 유한요소 모델링 기법에 관한 연구
송오섭(Song, Oh-Seop),김룡(Kim, Yong) 한국소음진동공학회 2007 한국소음진동공학회 논문집 Vol.17 No.4
Non-contact underwater explosions against surface ships could cause extensive equipment damage and render the ship inoperative. As an analytical method, DDAM(dynamic design and analysis method) is used for ship shock design. In this paper, in order to verify the finite element model of large shipboard equipment, modal test of equipment was performed. Major objective of this paper is to describe shock analysis methodology for large shipboard equipment attacked to the top and bottom foundations.
수중 무기 추진체의 진동 충격 환경조건에 대한 구조 안전성 분석
이창민,최재엽,박정훈,전관수 한국소음진동공학회 2023 한국소음진동공학회 논문집 Vol.33 No.1
Navy ships are exposed to vibrations and shocks during operations in various underwater environments. Underwater weapons, such as torpedoes and mines mounted on ships, transmit vibrations and shocks directly to the ships. Underwater weapons must be designed safely to avoid an explosion in the self-ship caused by transmitted vibration and shock. In this study, structural safety was investigated in relation to vibration and shock environmental conditions for an underwater weapon propellant. Vibration analyses in accordance with the Mil-E-82590 standard were performed to evaluate fatigue durability. Shock analyses of the deck launch condition were performed in accordance with the Mil-T-18404 standard. Furthermore, the structural safety was analyzed by performing an underwater explosion analysis based on DDAM. Finally, the concept of PVSS was introduced, and the analysis method of shock events was explained.