基于有限元分析的车辆驱动桥壳台架加速疲劳试验-国防科技大学学报.PDF

31 6 JOURNAL OF NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY Vol. 31 No. 6 2009 : 1001- 2486(2009) 06- 0106- 04 丛 楠, 陈 循, 尚建忠, 梁科山 ( , 410073) : , , , , , : ; ; ; + : U4623 6; TP3919 : A Driving Axle Housing Accelerated Fatigue Bench Test Based on FEA CONG Nan, CHEN Xun, SHANG Jian-zhong, LIANG Ke-shan ( College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China) Abstract: Based on finite element virtual benchtest, a new methodto acquire the reduced loadspectrum, which is used to conduct accelerated fatigue bench test of driving axle housing, is brought up in this paper. After static strength analysis, fatigue life prediction, strain history acquisition and time correlated damage analysis, the reduced load spectrum for the accelerated fatigue bench test of a military special vehicle driving axle housing was acquired under the FE simulation circumstance. The bench test result shows that the reduced loadspectrum can significantly shorten the test period, while the damage can be preserved as well, which proves the value of the method. Key words: driving axle housing; FEA; fatigue life; load spectrum , , , [ 1] , 11 , , , , , MSC , , , 1 , , , , [ 2] , ( S-N) ; , ( E-N) , Miner , S-N ( , 0 ) E-N , S-N E-N :2009- 06- 07 :( 203020102) ; (0809) :( 1983 ) , , , : 107