http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
자동차용 고장력 강의 진동특성에 미치는 미세조직의 영향
이충도(Choong Do Lee),한훈석(Hun Seok Han),김인동(In Dong Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_2
In present study, it aims to investigate the vibration characteristics of high strength steel for automobile structural applications, under resonance frequency. The specific damping capacity(SDC) was obtained from logarithmic decayed curve expressed as an index of damping property and the 1st resonance frequency was measure from free-free mode. The elastic modulus could obtain indirectly from measurement of resonance frequency and there is a linear relationship between 1st resonance frequency and elastic modulus. The SDC of steel that has a mixed microstructure of ferrite and bainite is higher than that of ferrite+martensite and ferrite+pearlite structure.