http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
다축 랜덤하중 하에서 자동차 서브프레임의 고 되풀이수 피로손상 평가
강재윤(J.Y Kang),최병익(B.I. Choi),이학주(H.J. Lee),김기주(K.J. Kim),김주성(J.S. Kim),박봉철(B.C. Park) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.8
A FEM-based analytical approach was used to evaluate the multiaxial high cycle fatigue damage of an automotive sub-frame. Elastic Multi Body Simulation (MBS) has been applied in order to determine the multiaxial load histories. The stresses due to these loads have been given by FE computation. These results have been used as the input for the multi axial fatigue analysis. For the assessment of multiaxial high cycle fatigue damage, the signed von Mises, the signed Tresca, the absolute maximum principal stress and a critical plane method have been employed. In addition, the biaxiality ratio, a<SUB>e</SUB>, the absolute maximum principal stress, σ₁ and the angle, Φ<SUB>p</SUB>, between σ₁ and the local x-axis, have been calculated to evaluate the stress state at each node.
최병익(B. I. Choi),이학주(H. J. Lee),한승우(S. W. Han),김정엽(J. Y. Kim),황기현(K. H. Hwang),강재윤(J. Y. Kang),김윤식(Y. S. Kim) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.8
A general purpose fatigue analysis software to predict fatigue lives of mechanical components and structures was developed. This software has some characteristic features including functions of searching weak regions on the free surface of finite element models in order to reduce computing time significantly, a database of fatigue properties for various materials, and an expert system which can assist any users to get more proper results. This software can be used in the environment consists of commercial finite element packages. Using the software developed fatigue analyses for a SAE keyhole specimen and an automobile knuckle were carried out. It was observed that the results were agree well with those from commercial finite element packages.
이상록(Lee S. R),이학주(Lee H. J),한승우(Han S. W),김정엽(Kim J. Y),차정환(Cha J. H),강재윤(Kang J. Y),박찬경(Park C. K) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
Stress analysis of the bogie frame by using the finite element method has been performed for the various loading conditions according to the results of vehicle dynamics analysis. Multiaxial fatigue analysis methods such as signed von Mises method, and typical critical plane theories were reviewed, and margin of safety for fatigue is defined. Multiaxial fatigue analysis program to predict the margin of safety of bogie frame under non-proportional loading conditions has been developed by using a commercial command language. Fatigue analysis of bogie frame under multiaxial loading was performed through this program and finite element analysis result. The procedure developed in this study is considered to be useful for the fatigue strength analysis in preliminary design stage of railway components under multiaxial loading condition.