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各位,我做了一个疲劳分析,获取疲劳累积系数为什么和我手算的不一样?
利用LIST显示节点应力,两个工况的应力分别是-121.48和64.217,根据手酸,其应力交变幅应为92.85,
但是我用ANSYS 自带的疲劳分析部分求出的应力交变幅为60.035。请各位高手给看一下,到底是怎么回事?
下面是累计系数的结果;
EVENT/LOADS 1 1 AND 1 2
PRODUCE ALTERNATING SI (SALT) = 60.035 WITH TEMP = 0.0000
CYCLES USED/ALLOWED = 0.5000E+05/ 0.1000E+07 = PARTIAL USAGE = 0.05000
下面是我输出疲劳的结果:
FTSIZE, 5, 10, 3
FE, 1, 50000. , 1.0000 ,
FL, 1, 7167, 1.0000 , 1.0000 , 1.0000 ,
FP, 1, 10.000 , 20.000 , 50.000 , 100.00 , 200.00
FP, 6, 500.00 , 1000.0 , 2000.0 , 5000.0 , 10000.
FP,11, 12000. , 20000. , 50000. , 0.10000E+06, 0.20000E+06
FP,16, 0.50000E+06, 0.10000E+07, 0.78886E-30, 0.78886E-30, 0.78886E-30
FP,21, 2879.0 , 2221.0 , 1586.0 , 1207.0 , 931.00
FP,26, 690.00 , 538.00 , 428.00 , 338.00 , 303.00
FP,31, 297.00 , 248.00 , 200.00 , 179.00 , 166.00
FP,36, 152.00 , 138.00 , 0.78886E-30, 0.78886E-30, 0.78886E-30
FP,41, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30
FP,46, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30
FP,51, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30
FP,56, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30, 0.78886E-30
FP,61, 0.78886E-30, 0.78886E-30,
FS, 7167, 1, 1, 1, -8.0209 , -9.1297 , -129.50 , 0.0000
FS, 7167, 1, 1, 4, 0.45290E-01, 0.0000 , 0.0000 , 0.0000
FS, 7167, 1, 1, 8, 0.0000 , 0.0000 , 0.0000 , 0.0000
FS, 7167, 1, 1,11, 0.0000 , 0.0000 , 0.0000 , 0.0000
FS, 7167, 1, 2, 1, -12.014 , 50.787 , -13.427 , 0.0000
FS, 7167, 1, 2, 4,-0.51111 , 0.0000 , 0.0000 , 0.0000
FS, 7167, 1, 2, 8, 0.0000 , 0.0000 , 0.0000 , 0.0000
FS, 7167, 1, 2,11, 0.0000 , 0.0000 , 0.0000 , 0.0000 |
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