TY - JOUR
T1 - Time-domain calculation method for structural fatigue life under multi-axis correlation random excitation
AU - Wang, Guoli
AU - Huang, Youjia
AU - Liu, Shuhui
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/10/21
Y1 - 2019/10/21
N2 - Based on the typical aerospace frame structure, the fatigue life law of the structure under multi-axis correlation time-domain random excitation is studied. By constructing multi-axis time-domain random excitation with different correlation coefficients, multi-axial fatigue theory and structural vibration fatigue life time-domain method are used to calculate the fatigue life of the structure under different excitations; by constructing the structural finite element model in MSC. Pastran and nCode-DesignLife, and Co-simulation calculates the structural fatigue life. The results show that there is a negative correlation between the correlation coefficient of the applied multi-axis time-domain random excitation and the structural fatigue life, that is, the larger the correlation coefficient, the shorter the fatigue life.
AB - Based on the typical aerospace frame structure, the fatigue life law of the structure under multi-axis correlation time-domain random excitation is studied. By constructing multi-axis time-domain random excitation with different correlation coefficients, multi-axial fatigue theory and structural vibration fatigue life time-domain method are used to calculate the fatigue life of the structure under different excitations; by constructing the structural finite element model in MSC. Pastran and nCode-DesignLife, and Co-simulation calculates the structural fatigue life. The results show that there is a negative correlation between the correlation coefficient of the applied multi-axis time-domain random excitation and the structural fatigue life, that is, the larger the correlation coefficient, the shorter the fatigue life.
UR - http://www.scopus.com/inward/record.url?scp=85074471859&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/612/3/032040
DO - 10.1088/1757-899X/612/3/032040
M3 - Conference article
AN - SCOPUS:85074471859
SN - 1757-8981
VL - 612
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 3
M1 - 032040
T2 - 2019 6th International Conference on Advanced Composite Materials and Manufacturing Engineering, ACMME 2019
Y2 - 22 June 2019 through 23 June 2019
ER -