24小时热门版块排行榜    

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土木小菜鸟

新虫 (初入文坛)

[求助] 我这个体外预应力转向块实体模型运行结果应力偏大很大,请高手看看哪里出了问题?已有1人参与

我是直接建立关键点,关键点生成体的,附上我的命令流。模型建立和网格划分应该没什么问题,应该是边界条件,荷载施加方面出了问题。第一个:边界条件有没有错误。第二个:我这个预应力筋的模拟是否有误,第三个:体外索对孔道上半部分有个作用力,要施加一个垂直于孔道曲面的法向面荷载,怎么加?需要加吗。因为我是参考别人命令流做的,别人命令流没有加这个荷载。附上我的命令流,如果能qq指导,万分感谢。
/prep7               
et,1,plane42            
et,2,solid45            
et,3,link8   
mp,ex,1,4.4e10         
mp,nuxy,1,0.167         
mp,dens,1,2.6e3         
mp,alpx,1,1.2e-5         
mp,ex,2,1.95e11
mp,nuxy,2,0.22
mp,dens,2,7.85e3
mp,alpx,2,1.0e-5
r,l,0.00065,0.007
k,120,-3.47,0.68,4.05
k,121,-3.43,0.57,4.05
k,122,-2.83,0.27,4.05
k,123,-2.58,0.27,4.05
k,124,-2.33,0.27,4.05
k,125,-2.08,0.27,4.05
k,126,-2.08,0.68,4.05
k,127,-2.33,0.68,4.05
k,128,-2.58,0.68,4.05
k,129,-2.83,0.68,4.05
n40=40
k,120+n40,-3.47,0.68,4.3
k,121+n40,-3.43,0.57,4.3
k,122+n40,-2.83,0.27,4.3
k,123+n40,-2.58,0.27,4.3
k,124+n40,-2.33,0.27,4.3
k,125+n40,-2.08,0.27,4.3
k,126+n40,-2.08,0.68,4.3
k,127+n40,-2.33,0.68,4.3
k,128+n40,-2.58,0.68,4.3
k,129+n40,-2.83,0.68,4.3
v,120,121,122,129,120+n40,121+n40,122+n40,129+n40
v,129,122,123,128,129+n40,122+n40,123+n40,128+n40
v,128,123,124,127,128+n40,123+n40,124+n40,127+n40
v,127,124,125,126,127+n40,124+n40,125+n40,126+n40
n80=80
k,120+n80,-3.47,0.68,4.55
k,121+n80,-3.43,0.57,4.55
k,122+n80,-2.83,0.27,4.55
k,123+n80,-2.58,0.27,4.55
k,124+n80,-2.33,0.27,4.55
k,125+n80,-2.08,0.27,4.55
k,126+n80,-2.08,0.68,4.55
k,127+n80,-2.33,0.68,4.55
k,128+n80,-2.58,0.68,4.55
k,129+n80,-2.83,0.68,4.55
v,120+n40,121+n40,122+n40,129+n40,120+n80,121+n80,122+n80,129+n80
v,129+n40,122+n40,123+n40,128+n40,129+n80,122+n80,123+n80,128+n80
v,128+n40,123+n40,124+n40,127+n40,128+n80,123+n80,124+n80,127+n80
v,127+n40,124+n40,125+n40,126+n40,127+n80,124+n80,125+n80,126+n80
n120=120
k,120+n120,-3.47,0.68,4.80
k,121+n120,-3.43,0.57,4.80
k,122+n120,-2.83,0.27,4.80
k,123+n120,-2.58,0.27,4.80
k,124+n120,-2.33,0.27,4.80
k,125+n120,-2.08,0.27,4.80
k,126+n120,-2.08,0.68,4.80
k,127+n120,-2.33,0.68,4.80
k,128+n120,-2.58,0.68,4.80
k,129+n120,-2.83,0.68,4.80
v,120+n80,121+n80,122+n80,129+n80,120+n120,121+n120,122+n120,129+n120
v,129+n80,122+n80,123+n80,128+n80,129+n120,122+n120,123+n120,128+n120
v,128+n80,123+n80,124+n80,127+n80,128+n120,123+n120,124+n120,127+n120
v,127+n80,124+n80,125+n80,126+n80,127+n120,124+n120,125+n120,126+n120
n160=160
k,120+n160,-3.47,0.68,3.80
k,121+n160,-3.43,0.57,3.80
k,122+n160,-2.83,0.27,3.80
k,123+n160,-2.58,0.27,3.80
k,124+n160,-2.33,0.27,3.80
k,125+n160,-2.08,0.27,3.80
k,126+n160,-2.08,0.68,3.80
k,127+n160,-2.33,0.68,3.80
k,128+n160,-2.58,0.68,3.80
k,129+n160,-2.83,0.68,3.80
v,120+n80,121+n80,122+n80,129+n80,120+n160,121+n160,122+n160,129+n160
v,129+n80,122+n80,123+n80,128+n80,129+n160,122+n160,123+n160,128+n160
v,128+n80,123+n80,124+n80,127+n80,128+n160,123+n160,124+n160,127+n160
v,127+n80,124+n80,125+n80,126+n80,127+n160,124+n160,125+n160,126+n160
allsel
cm,v1,volu
wpoffs,0,0,4.8
cyl4,-2.95,0.519,0,0,0.1,360
cyl4,-2.70,0.519,0,0,0.1,360
cyl4,-2.45,0.519,0,0,0.1,360
cyl4,-2.20,0.519,0,0,0.1,360
allsel
k,2000,-2.95,0.519,3.7
k,2001,-2.70,0.519,3.7
k,2002,-2.45,0.519,3.7
k,2003,-2.20,0.519,3.7
k,2010,-2.95,0.48,4.3
k,2011,-2.70,0.48,4.3
k,2012,-2.45,0.48,4.3
k,2013,-2.20,0.48,4.3
k,2020,-2.95,0.48,4.8
k,2021,-2.70,0.48,4.8
k,2022,-2.45,0.48,4.8
k,2023,-2.20,0.48,4.8
*do,i,0,3               
lstr,2000+i,2010+i                  
*enddo           
*do,j,0,3
lstr,2010+j,2020+j
*enddo   
*do,k,0,3
lfillt,126+k,122+k,6        
*enddo
*do,l,0,3
lcomb,122+l,130+l,0   
*enddo   
*do,n,0,3
lcomb,126+n,122+n,0
*enddo   
*do,i,0,3
allsel
asel,s,area,,73+i            
vdrag,all,,,,,,122+i           
allsel
*enddo
vsbv,v1,17
vsbv,v1,18
vsbv,v1,19
vsbv,v1,20
allsel
k,111,0,0.27,4.05
k,112,0,0.68,4.05
n40=40
k,111+n40,0,0.27,4.3
k,112+n40,0,0.68,4.3
v,126,125,111,112,126+n40,125+n40,111+n40,112+n40
n80=80
k,111+n80,0,0.27,4.55
k,112+n80,0,0.68,4.55
v,126+n40,125+n40,111+n40,112+n40,126+n80,125+n80,111+n80,112+n80
n120=120
k,111+n120,0,0.27,4.80
k,112+n120,0,0.68,4.80
v,126+n80,125+n80,111+n80,112+n80,126+n120,125+n120,111+n120,112+n120
n160=160
k,111+n160,0,0.27,3.80
k,112+n160,0,0.68,3.80
v,126+n80,125+n80,111+n80,112+n80,126+n160,125+n160,111+n160,112+n160
allsel
cm,guandao,volu
k,118,-3.92,2.50,4.05
k,119,-3.92,1.90,4.05
k,130,-2.17,0.68,4.05
k,131,-2.17,1.90,4.05
k,132,-2.17,2.72,4.05
k,133,-1.94,2.72,4.05
k,134,-1.523,1.90,4.05
k,135,-0.90,0.68,4.05
n40=40       
k,118+n40,-3.92,2.50,4.3
k,119+n40,-3.92,1.90,4.3
k,130+n40,-2.17,0.68,4.3
k,131+n40,-2.17,1.90,4.3
k,132+n40,-2.17,2.72,4.3
k,133+n40,-1.94,2.72,4.3
k,134+n40,-1.523,1.90,4.3
k,135+n40,-0.90,0.68,4.3
v,118,119,131,132,118+n40,119+n40,131+n40,132+n40
v,119,120,130,131,119+n40,120+n40,130+n40,131+n40
v,132,131,134,133,132+n40,131+n40,134+n40,133+n40
v,131,130,135,134,131+n40,130+n40,135+n40,134+n40
n80=80
k,118+n80,-3.92,2.50,4.55
k,119+n80,-3.92,1.90,4.55
k,130+n80,-2.17,0.68,4.55
k,131+n80,-2.17,1.90,4.55
k,132+n80,-2.17,2.72,4.55
k,133+n80,-1.94,2.72,4.55
k,134+n80,-1.523,1.90,4.55
k,135+n80,-0.90,0.68,4.55
v,118+n40,119+n40,131+n40,132+n40,118+n80,119+n80,131+n80,132+n80
v,132+n40,131+n40,134+n40,133+n40,132+n80,131+n80,134+n80,133+n80
v,119+n40,120+n40,130+n40,131+n40,119+n80,120+n80,130+n80,131+n80
v,131+n40,130+n40,135+n40,134+n40,131+n80,130+n80,135+n80,134+n80
cmsel,u,guandao
cm,hgb,volu
allsel
k,3005,-3.95,0.68,4.05
k,3006,-3.91,0.57,4.05
k,3007,-3.80,0.27,4.05
k,3008,-3.694,0,4.05
k,3009,-2.823,0,4.05
k,3010,0,0,4.05
n40=40
k,3005+n40,-3.95,0.68,4.3
k,3006+n40,-3.91,0.57,4.3
k,3007+n40,-3.80,0.27,4.3
k,3008+n40,-3.694,0,4.3
k,3009+n40,-2.823,0,4.3
k,3010+n40,0,0,4.3
v,3005,3006,121,120,3005+n40,3006+n40,121+n40,120+n40
v,3006,3007,122,121,3006+n40,3007+n40,122+n40,121+n40
v,3007,3008,3009,122,3007+n40,3008+n40,3009+n40,122+n40
v,122,3009,3010,111,122+n40,3009+n40,3010+n40,111+n40
n80=80
k,3005+n80,-3.95,0.68,4.55
k,3006+n80,-3.91,0.57,4.55
k,3007+n80,-3.80,0.27,4.55
k,3008+n80,-3.694,0,4.55
k,3009+n80,-2.823,0,4.55
k,3010+n80,0,0,4.55
v,3005+n40,3006+n40,121+n40,120+n40,3005+n80,3006+n80,121+n80,120+n80
v,3006+n40,3007+n40,122+n40,121+n40,3006+n80,3007+n80,122+n80,121+n80
v,3007+n40,3008+n40,3009+n40,122+n40,3007+n80,3008+n80,3009+n80,122+n80
v,122+n40,3009+n40,3010+n40,111+n40,122+n80,3009+n80,3010+n80,111+n80
n120=120
k,3005+n120,-3.95,0.68,4.80
k,3006+n120,-3.91,0.57,4.80
k,3007+n120,-3.80,0.27,4.80
k,3008+n120,-3.694,0,4.80
k,3009+n120,-2.823,0,4.80
k,3010+n120,0,0,4.80
v,3005+n80,3006+n80,121+n80,120+n80,3005+n120,3006+n120,121+n120,120+n120
v,3006+n80,3007+n80,122+n80,121+n80,3006+n120,3007+n120,122+n120,121+n120
v,3007+n80,3008+n80,3009+n80,122+n80,3007+n120,3008+n120,3009+n120,122+n120
v,122+n80,3009+n80,3010+n80,111+n80,122+n120,3009+n120,3010+n120,111+n120
n160=160
k,3005+n160,-3.95,0.68,3.80
k,3006+n160,-3.91,0.57,3.80
k,3007+n160,-3.80,0.27,3.80
k,3008+n160,-3.694,0,3.80
k,3009+n160,-2.823,0,3.80
k,3010+n160,0,0,3.80
v,3005+n80,3006+n80,121+n80,120+n80,3005+n160,3006+n160,121+n160,120+n160
v,3006+n80,3007+n80,122+n80,121+n80,3006+n160,3007+n160,122+n160,121+n160
v,3007+n80,3008+n80,3009+n80,122+n80,3007+n160,3008+n160,3009+n160,122+n160
v,122+n80,3009+n80,3010+n80,111+n80,122+n160,3009+n160,3010+n160,111+n160
k,3001,-8.25,3,4.05
k,3002,-8.25,2.8,4.05
k,3003,-4.62,2.50,4.05
k,3004,-4.40,1.90,4.05
k,113,0,2.72,4.05
k,114,0,3.00,4.05
k,115,-2.17,3.00,4.05
k,116,-3.92,3.00,4.05
k,117,-4.62,3.00,4.05
n40=40
k,3001+n40,-8.25,3,4.3
k,3002+n40,-8.25,2.8,4.3
k,3003+n40,-4.62,2.50,4.3
k,3004+n40,-4.40,1.90,4.3
k,113+n40,0,2.72,4.3
k,114+n40,0,3.00,4.3
k,115+n40,-2.17,3.00,4.3
k,116+n40,-3.92,3.00,4.3
k,117+n40,-4.62,3.00,4.3
v,3001,3002,3003,117,3001+n40,3002+n40,3003+n40,117+n40
v,3003,3004,119,118,3003+n40,3004+n40,119+n40,118+n40
v,3004,3005,120,119,3004+n40,3005+n40,120+n40,119+n40
v,117,3003,118,116,117+n40,3003+n40,118+n40,116+n40
v,116,118,132,115,116+n40,118+n40,132+n40,115+n40
v,115,132,113,114,115+n40,132+n40,113+n40,114+n40
n80=80
k,3001+n80,-8.25,3,4.55
k,3002+n80,-8.25,2.8,4.55
k,3003+n80,-4.62,2.50,4.55
k,3004+n80,-4.40,1.90,4.55
k,113+n80,0,2.72,4.55
k,114+n80,0,3.00,4.55
k,115+n80,-2.17,3.00,4.55
k,116+n80,-3.92,3.00,4.55
k,117+n80,-4.62,3.00,4.55
v,3001+n40,3002+n40,3003+n40,117+n40,3001+n80,3002+n80,3003+n80,117+n80
v,3003+n40,3004+n40,119+n40,118+n40,3003+n80,3004+n80,119+n80,118+n80
v,3004+n40,3005+n40,120+n40,119+n40,3004+n80,3005+n80,120+n80,119+n80
v,117+n40,3003+n40,118+n40,116+n40,117+n80,3003+n80,118+n80,116+n80
v,116+n40,118+n40,132+n40,115+n40,116+n80,118+n80,132+n80,115+n80
v,115+n40,132+n40,113+n40,114+n40,115+n80,132+n80,113+n80,114+n80
n120=120
k,3001+n120,-8.25,3,4.80
k,3002+n120,-8.25,2.8,4.80
k,3003+n120,-4.62,2.50,4.80
k,3004+n120,-4.40,1.90,4.80
k,113+n120,0,2.72,4.80
k,114+n120,0,3.00,4.80
k,115+n120,-2.17,3.00,4.80
k,116+n120,-3.92,3.00,4.80
k,117+n120,-4.62,3.00,4.80
k,118+n120,-3.92,2.50,4.80
k,119+n120,-3.92,1.90,4.80
k,132+n120,-2.17,2.72,4.80
v,3001+n80,3002+n80,3003+n80,117+n80,3001+n120,3002+n120,3003+n120,117+n120
v,117+n80,3003+n80,118+n80,116+n80,117+n120,3003+n120,118+n120,116+n120
v,116+n80,118+n80,132+n80,115+n80,116+n120,118+n120,132+n120,115+n120
v,115+n80,132+n80,113+n80,114+n80,115+n120,132+n120,113+n120,114+n120
v,3003+n80,3004+n80,119+n80,118+n80,3003+n120,3004+n120,119+n120,118+n120
v,3004+n80,3005+n80,120+n80,119+n80,3004+n120,3005+n120,120+n120,119+n120
n160=160
k,3001+n160,-8.25,3,3.80
k,3002+n160,-8.25,2.8,3.80
k,3003+n160,-4.62,2.50,3.80
k,3004+n160,-4.40,1.90,3.80
k,113+n160,0,2.72,3.80
k,114+n160,0,3.00,3.80
k,115+n160,-2.17,3.00,3.80
k,116+n160,-3.92,3.00,3.80
k,117+n160,-4.62,3.00,3.80
k,118+n160,-3.92,2.50,3.80
k,119+n160,-3.92,1.90,3.80
k,132+n160,-2.17,2.72,3.80
v,3001+n80,3002+n80,3003+n80,117+n80,3001+n160,3002+n160,3003+n160,117+n160
v,117+n80,3003+n80,118+n80,116+n80,117+n160,3003+n160,118+n160,116+n160
v,116+n80,118+n80,132+n80,115+n80,116+n160,118+n160,132+n160,115+n160
v,115+n80,132+n80,113+n80,114+n80,115+n160,132+n160,113+n160,114+n160
v,3003+n80,3004+n80,119+n80,118+n80,3003+n160,3004+n160,119+n160,118+n160
v,3004+n80,3005+n80,120+n80,119+n80,3004+n160,3005+n160,120+n160,119+n160
n200=200
k,3001+n200,-8.25,3,10.2
k,3002+n200,-8.25,2.8,10.2
k,3003+n200,-4.62,2.50,10.2
k,3004+n200,-4.40,1.90,10.2
k,3005+n200,-3.95,0.68,10.2
k,3006+n200,-3.91,0.57,10.2
k,3007+n200,-3.80,0.27,10.2
k,3008+n200,-3.694,0,10.2
k,3009+n200,-2.823,0,10.2
k,3010+n200,0,0,10.2
k,111+n200,0,0.27,10.2
k,112+n200,0,0.68,10.2
k,113+n200,0,2.72,10.2
k,114+n200,0,3.00,10.2
k,115+n200,-2.17,3.00,10.2
k,116+n200,-3.92,3.00,10.2
k,117+n200,-4.62,3.00,10.2
k,118+n200,-3.92,2.50,10.2
k,119+n200,-3.92,1.90,10.2
k,120+n200,-3.47,0.68,10.2
k,121+n200,-3.43,0.57,10.2
k,122+n200,-2.83,0.27,10.2
k,132+n200,-2.17,2.72,10.2
v,3001+n120,3002+n120,3003+n120,117+n120,3001+n200,3002+n200,3003+n200,117+n200
v,117+n120,3003+n120,118+n120,116+n120,117+n200,3003+n200,118+n200,116+n200
v,116+n120,118+n120,132+n120,115+n120,116+n200,118+n200,132+n200,115+n200
v,115+n120,132+n120,113+n120,114+n120,115+n200,132+n200,113+n200,114+n200
v,3003+n120,3004+n120,119+n120,118+n120,3003+n200,3004+n200,119+n200,118+n200
v,3004+n120,3005+n120,120+n120,119+n120,3004+n200,3005+n200,120+n200,119+n200
v,3005+n120,3006+n120,121+n120,120+n120,3005+n200,3006+n200,121+n200,120+n200
v,3006+n120,3007+n120,122+n120,121+n120,3006+n200,3007+n200,122+n200,121+n200
v,3007+n120,3008+n120,3009+n120,122+n120,3007+n200,3008+n200,3009+n200,122+n200
v,122+n120,3009+n120,3010+n120,111+n120,122+n200,3009+n200,3010+n200,111+n200
n240=240
k,3001+n240,-8.25,3,0
k,3002+n240,-8.25,2.8,0
k,3003+n240,-4.62,2.50,0
k,3004+n240,-4.40,1.90,0
k,3005+n240,-3.95,0.68,0
k,3006+n240,-3.91,0.57,0
k,3007+n240,-3.80,0.27,0
k,3008+n240,-3.694,0,0
k,3009+n240,-2.823,0,0
k,3010+n240,0,0,0
k,111+n240,0,0.27,0
k,112+n240,0,0.68,0
k,113+n240,0,2.72,0
k,114+n240,0,3.00,0
k,115+n240,-2.17,3.00,0
k,116+n240,-3.92,3.00,0
k,117+n240,-4.62,3.00,0
k,118+n240,-3.92,2.50,0
k,119+n240,-3.92,1.90,0
k,120+n240,-3.47,0.68,0
k,121+n240,-3.43,0.57,0
k,122+n240,-2.83,0.27,0
k,132+n240,-2.17,2.72,0
v,3001+n160,3002+n160,3003+n160,117+n160,3001+n240,3002+n240,3003+n240,117+n240
v,117+n160,3003+n160,118+n160,116+n160,117+n240,3003+n240,118+n240,116+n240
v,116+n160,118+n160,132+n160,115+n160,116+n240,118+n240,132+n240,115+n240
v,115+n160,132+n160,113+n160,114+n160,115+n240,132+n240,113+n240,114+n240
v,3003+n160,3004+n160,119+n160,118+n160,3003+n240,3004+n240,119+n240,118+n240
v,3004+n160,3005+n160,120+n160,119+n160,3004+n240,3005+n240,120+n240,119+n240
v,3005+n160,3006+n160,121+n160,120+n160,3005+n240,3006+n240,121+n240,120+n240
v,3006+n160,3007+n160,122+n160,121+n160,3006+n240,3007+n240,122+n240,121+n240
v,3007+n160,3008+n160,3009+n160,122+n160,3007+n240,3008+n240,3009+n240,122+n240
v,122+n160,3009+n160,3010+n160,111+n160,122+n240,3009+n240,3010+n240,111+n240
vsel,u,volu,,guandao
vsel,u,volu,,hgb
cm,xiangliang,volu
allsel
vsel,all
vatt,2,,2,0
n,1,-2.95,0.523,3.4
n,4,-2.95,0.489,4.14              
fill                              
n,5,-2.95,0.48,4.3
n,6,-2.95,0.48,4.46
n,20,-2.95,0.48,10.2
fill                           
type,3                        
mat,2
real,1
e,1,2                              
egen,19,1,1,,,  
allsel
n,21,-2.7,0.523,3.4
n,24,-2.7,0.489,4.14
fill
n,25,-2.7,0.48,4.3
n,26,-2.7,0.48,4.46
n,40,-2.7,0.48,10.2
fill
type,3
mat,2
real,1
e,21,22
egen,19,1,20,,,
allsel
n,41,-2.45,0.523,3.4
n,44,-2.45,0.489,4.14
fill
n,45,-2.45,0.48,4.3
n,46,-2.45,0.48,4.46
n,60,-2.45,0.48,10.2
fill
type,3
mat,2
real,1
e,41,42
egen,19,1,39,,,
allsel
n,61,-2.20,0.523,3.4
n,64,-2.20,0.489,4.14
fill
n,65,-2.20,0.48,4.3
n,66,-2.20,0.48,4.46
n,80,-2.20,0.48,10.2
fill
type,3
mat,2
real,1
e,61,62
egen,19,1,58,,,
allsel
esel,s,type,,3
cm,tws,elem
allsel      
esize,0.05
vsweep,guandao
esize,0.1
vsweep,hgb
esize,0.2
vsweep,xiangliang
cmsel,,tws                 
nsle  
cm,gsnode,node
*get,senum,node,,count
*dim,snode,,senum
*dim,cnode,,senum
*get,nodei,node,,num,min
snode(1)=nodei
*do,i,2,senum
snode(i)=ndnext(snode(i-1))
*enddo
allsel,all
cmsel,u,gsnode
*do,i,1,senum
nodei=snode(i)
nodej=nnear(nodei)
cnode(i)=nodej
nsel,u,,,nodej
*enddo
allsel,all
*do,i,1,senum
cp,next,all,snode(i),cnode(i)
*enddo
wpcsys,0
allsel,all
/eof               
vsel,all
eslv                     
nsle                     
nsel,s,loc,z,-2,0.01   
d,all,all,0   
allsel
asel,s,loc,z,10.15,10.3      
sfa,all,,PRES,-10e6      
allsel
nsel,s,loc,z,10.15,10.3
nsel,r,loc,y,-0.1,0.1
d,all,uy,0
allsel
asel,s,loc,x,0
da,all,symm
allsel
acel,0,-8.0,0  
allsel
/solu
solve
finish
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shgao20

专家顾问 (职业作家)

【答案】应助回帖

感谢参与,应助指数 +1
既然 "因为我是参考别人命令流做的,别人命令流没有加这个荷载",你可以先不加这个载荷试试,看结果是否与别人的类似。如是,则说明这个载荷不应该加,或者你加的太大了。如不是,则说明不是这个原因,你的模型中还有别的问题。
2楼2016-10-09 07:54:32
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土木小菜鸟

新虫 (初入文坛)

引用回帖:
2楼: Originally posted by shgao20 at 2016-10-09 07:54:32
既然 "因为我是参考别人命令流做的,别人命令流没有加这个荷载",你可以先不加这个载荷试试,看结果是否与别人的类似。如是,则说明这个载荷不应该加,或者你加的太大了。如不是,则说明不是这个原因,你 ...

我没加,结果不同,应力大了。但是看相关方面论文的时候,论文中都模拟了预应力束对预应力管道的压力。
3楼2016-10-09 09:33:46
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