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이중 충격 발생 기능을 갖는 대형 고중량 충격시험장치의 동력학적 설계
강민식(M. S. Kang),설창원(C. W. Shul),김태형(T. H. Kim),양명석(M. S. Yang),송원길(W. G. Song),이규섭(G. S. Lee) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
Naval shipboard components encounter mechanical shock from a variety of sources. Components must be designed and tested accordingly to ensure reliability under possible shock pulses. This study concerns on dynamic design of a large and heavy dual shock generation system that will be used for reliability test of naval shipboard components. This is required to generate specific shock time history. Especially, the desired shock consists of a very high amplitude and very short period half-sine shock followed by an exponentially decaying harmonic shock of relatively longer period. Base on analysis of the dynamic characteristics of the given shock history, we proposed a sequential design procedure to determine spring and damping coefficients of the generation system. Feasibility of the proposed method was verified along with some simulation results.