脉冲响应

zyq327739893

请教各位前辈：
         用ansys如何模拟算出力锤敲击的动力响应
                                                       万分感激

16443

可以用一个激励时间很短的脉冲力代替。

zyq327739893

谢谢16443
我有一个这方面的命令流
差一点不通 请高手指点一下
！模型建立命令流文件
FINISH
/CLEAR
/FILENAME,PLATFORM
/TITLE,PLATFORM-STUDY

/PREP7
ET,1,PIPE16
ET,2,BEAM4
ET,3,SHELL63

R,1,1.2,0.03
R,2,0.8,0.02
R,3,0.5,0.02
R,4,0.3,0.015
R,5,0.06,0.002,0.00045,0.3,0.2
R,6,0.02,0.02,0.02,0.02

MP,EX,1,2.0E11
MP,NUXY,1,0.3
MP,DENS,1,7800


K,1,-10,-7.5,0
K,2,0,-9.5,0
K,3,10,-7.5,0
K,4,10,7.5,0
K,5,0,9.5,0
K,6,-10,7.5,0
K,7,-10,0,0
K,8,-5.588,0,0
K,9,0,0,0
K,10,5.588,0,0
K,11,10,0,0
K,12,-9.454,-3.438,10.91
K,13,-9.454,3.438,10.91
K,14,0,-4.313,11.01
K,15,0,4.313,11.01
K,16,9.454,-3.438,10.91
K,17,9.454,3.438,10.91
K,18,-4.75,-7.75,10.53
K,19,4.75,-7.75,10.53
K,20,-4.75,7.75,10.53
K,32,4.75,7.75,10.53
K,21,-9,-6.25,20
K,22,0,-7.75,20
K,23,9,-6.25,20
K,24,9,6.25,20
K,25,0,7.75,20
K,26,-9,6.25,20
K,27,-9,0,20
K,28,-4.982,0,20
K,29,0,0,20
K,30,4.982,0,20
K,31,9,0,20
K,41,-8,-5,40
K,42,0,-6,40
K,43,8,-5,40
K,44,8,5,40
K,45,0,6,40
K,46,-8,5,40
K,47,-8,0,40
K,48,-4.364,0,40
K,49,0,0,40
K,50,4.364,0,40
K,51,8,0,40
K,61,-7,-3.75,60
K,62,0,-4.25,60
K,63,7,-3.75,60
K,64,7,3.75,60
K,65,0,4.25,60
K,66,-7,3.75,60
K,68,-3.720,0,60
K,70,3.720,0,60
K,81,-6,-2.5,80
K,82,0,-2.5,80
K,83,6,-2.5,80
K,84,6,2.5,80
K,85,0,2.5,80
K,86,-6,2.5,80
K,88,-3,0,80
K,90,3,0,80

！创建基础约束关键点
K,71,-10.1,-7.625,-2
K,72,0,-9.675,-2
K,73,10.1,-7.625,-2
K,74,10.1,7.625,-2
K,75,0,9.675,-2
K,76,-10.1,7.625,-2

！创建导管架甲板连接处的关键点
K,91,-6,-2.5,82
K,92,0,-2.5,82
K,93,6,-2.5,82
K,94,6,2.5,82
K,95,0,2.5,82
K,96,-6,2.5,82

！创建下层甲板关键点
K,101,-6,-2.5,90
K,102,0,-2.5,90
K,103,6,-2.5,90
K,104,6,2.5,90
K,105,0,2.5,90
K,106,-6,2.5,90
K,107,-8,-4.5,90
K,108,-6,-4.5,90
K,109,0,-4.5,90
K,110,6,-4.5,90
K,111,8,-4.5,90
K,112,-8,0,90
K,113,-6,0,90
K,114,0,0,90
K,115,6,0,90
K,116,8,0,90
K,117,-8,-2.5,90
K,118,8,-2.5,90
K,119,-8,2.5,90
K,120,8,2.5,90
K,121,-8,4.5,90
K,122,-6,4.5,90
K,123,0,4.5,90
K,124,6,4.5,90
K,125,8,4.5,90

！创建上层甲板关键点
K,151,-6,-2.5,98
K,152,0,-2.5,98
K,153,6,-2.5,98
K,154,6,2.5,98
K,155,0,2.5,98
K,156,-6,2.5,98
K,157,-9,-5.5,98
K,158,-6,-5.5,98
K,159,0,-5.5,98
K,160,6,-5.5,98
K,161,9,-5.5,98
K,162,-9,0,98
K,163,-6,0,98
K,164,0,0,98
K,165,6,0,98
K,166,9,0,98
K,167,-9,-2.5,98
K,168,9,-2.5,98
K,169,-9,2.5,98
K,170,9,2.5,98
K,171,-9,5.5,98
K,172,-6,5.5,98
K,173,0,5.5,98
K,174,6,5.5,98
K,175,9,5.5,98

！导管架一层水平面杆件连线
L,1,2
L,2,3
L,3,11
L,11,4
L,4,5
L,5,6
L,6,7
L,7,1
L,9,2
L,9,5
L,8,1
L,8,2
L,8,9
L,8,5
L,8,6
L,8,7
L,10,2
L,10,3
L,10,11
L,10,4
L,10,5
L,10,9
！导管架二层水平面杆件连接
L,21,22
L,22,23
L,23,31
L,31,24
L,24,25
L,25,26
L,26,27
L,27,21
L,29,22
L,29,25
L,28,21
L,28,22
L,28,29
L,28,25
L,28,26
L,28,27
L,30,22
L,30,23
L,30,31
L,30,24
L,30,25
L,30,29

！导管架三层水平面杆件连接
L,41,42
L,42,43
L,43,51
L,51,44
L,44,45
L,45,46
L,46,47
L,47,41
L,49,42
L,49,45
L,48,41
L,48,42
L,48,49
L,48,45
L,48,46
L,50,42
L,50,43
L,50,44
L,50,45
L,50,49

！导管架四层水平面杆件连接
L,61,62
L,62,63
L,63,64
L,64,65
L,65,66
L,66,61
L,62,65
L,68,61
L,68,62
L,68,65
L,68,66
L,70,62
L,70,63
L,70,64
L,70,65

！导管架五层水平面杆件连接
L,81,82
L,82,83
L,83,84
L,84,85
L,85,86
L,86,81
L,82,85
L,88,81
L,88,82
L,88,85
L,88,86
L,90,82
L,90,83
L,90,84
L,90,85

！导管架左侧面杆件连接
L,1,21
L,21,41
L,41,61
L,61,81
L,6,26
L,26,46
L,46,66
L,66,86
L,13,6
L,13,7
L,13,27
L,13,26
L,12,7
L,12,1
L,12,21
L,12,27
L,7,27
L,27,47
L,26,47
L,21,47
L,47,66
L,47,61
L,61,86

！导管架纵向中间面杆件连接
L,2,22
L,22,42
L,42,62
L,62,82
L,5,25
L,25,45
L,45,65
L,65,85
L,15,5
L,15,9
L,15,29
L,15,25
L,9,29
L,14,9
L,14,2
L,14,22
L,14,29
L,29,49
L,25,49
L,22,49
L,49,65
L,49,62
L,62,85

！导管架右侧面杆件连接
L,3,23
L,23,43
L,43,63
L,63,83
L,4,24
L,24,44
L,44,64
L,64,84
L,17,4
L,17,11
L,17,31
L,17,24
L,11,31
L,16,11
L,16,3
L,16,23
L,16,31
L,31,51
L,24,51
L,23,51
L,51,64
L,51,63
L,63,84

！导管架前立面杆件连接
L,18,1
L,18,2
L,18,22
L,18,21
L,19,2
L,19,3
L,19,23
L,19,22
L,21,42
L,23,42
L,42,61
L,42,63
L,62,81
L,62,83

！导管架后立面杆件连接
L,20,6
L,20,5
L,20,25
L,20,26
L,32,5
L,32,4
L,32,24
L,32,25
L,26,45
L,24,45
L,45,66
L,45,64
L,65,86
L,65,84

！导管架底端桩基础连线
L,1,71
L,2,72
L,3,73
L,4,74
L,5,75
L,6,76

！导管架甲板连接处连线
L,81,91
L,82,92
L,83,93
L,84,94
L,85,95
L,86,96

！下层甲板梁格连线
L,101,102
L,102,103
L,103,115
L,115,104
L,104,105
L,105,106
L,106,113
L,113,101
L,107,108
L,108,109
L,109,110
L,110,111
L,112,113
L,113,114
L,114,115
L,115,116
L,117,101
L,103,118
L,119,106
L,104,120
L,121,122
L,122,123
L,123,124
L,124,125
L,107,117
L,117,112
L,112,119
L,119,121
L,108,101
L,106,122
L,109,102
L,102,114
L,114,105
L,105,123
L,110,103
L,104,124
L,111,118
L,118,116
L,116,120
L,120,125

！上层甲板梁格连线
L,151,152
L,152,153
L,153,165
L,165,154
L,154,155
L,155,156
L,156,163
L,163,151
L,157,158
L,158,159
L,159,160
L,160,161
L,162,163
L,163,164
L,164,165
L,165,166
L,167,151
L,153,168
L,169,156
L,154,170
L,171,172
L,172,173
L,173,174
L,174,175
L,157,167
L,167,162
L,162,169
L,169,171
L,158,151
L,156,172
L,159,152
L,152,164
L,164,155
L,155,173
L,160,153
L,154,174
L,161,168
L,168,166
L,166,170
L,170,175

！甲板撑杆连线
L,91,101
L,101,151
L,92,102
L,102,152
L,93,103
L,103,153
L,94,104
L,104,154
L,95,105
L,105,155
L,96,106
L,106,156
L,91,102
L,102,93
L,94,105
L,105,96
L,91,106
L,95,102
L,93,104
L,151,102
L,102,153
L,154,105
L,105,156
L,106,151
L,104,153
L,102,155
！生成下层甲板平面
A,107,108,101,117
A,108,109,102,101
A,109,110,103,102
A,110,111,118,103
A,117,101,113,112
A,101,102,114,113
A,102,103,115,114
A,103,118,116,115
A,112,113,106,119
A,113,114,105,106
A,114,115,104,105
A,115,116,120,104
A,119,106,122,121
A,106,105,123,122
A,105,104,124,123
A,104,120,125,124

！生成上层甲板平面
A,157,158,151,167
A,158,159,152,151
A,159,160,153,152
A,160,161,168,153
A,167,151,163,162
A,151,152,164,163
A,152,153,165,164
A,153,168,166,165
A,162,163,156,169
A,163,164,155,156
A,164,165,154,155
A,165,166,170,154
A,169,156,172,171
A,156,155,173,172
A,155,154,174,173
A,154,170,175,174

！框架网格划分
LSEL,S,,,95,102   ！选择导管架的竖向主导管
LSEL,A,,,118,125
LSEL,A,,,141,148
LSEL,A,,,192,203
LATT,1,1,1         ！设置导管架主导管的网格划分属性
LESIZE,ALL,,,1     ！导管架主导管的网格划分数ndiv为1
LMESH,ALL          ！导管架主导管网格划分

LSEL,S,,,1,94      ！选择导管架的撑杆
LSEL,A,,,103,117
LSEL,A,,,126,140
LSEL,A,,,149,191
LATT,1,3,1         ！设置导管架撑杆的网格划分属性
LESIZE,ALL,,,1     ！导管架撑杆的网格划分数ndiv为1
LMESH,ALL          ！导管架撑杆网格划分

LSEL,S,,,284,295   ！选择甲板部分的主导管
LSEL,A,,,118,125
LATT,1,2,1         ！设置甲板部分的主导管网格划分属性
LESIZE,ALL,,,1     ！设置甲板部分的主导管的网格划分数ndiv为1
LMESH,ALL          ！甲板部分的主导管网格划分

LSEL,S,,,296,309   ！选择甲板部分的撑杆
LATT,1,4,1         ！设置甲板部分的撑杆网格划分属性
LESIZE,ALL,,,1     ！设置甲板部分撑杆的网格划分数ndiv为1
LMESH,ALL          ！甲板部分的撑杆网格划分


LSEL,S,,,204,283   ！选择甲板梁格线段  
LATT,1,5,2,,,,1    ！设置甲板梁格网格划分属性
LESIZE,ALL,,,3     ！设置甲板梁格的网格划分数ndiv为3
LMESH,ALL          ！甲板梁格网格划分

ASEL,A,,,ALL       ！选择甲板平面
AATT,1,6,3         ！设置甲板平面网格划分属性
AMESH,ALL          ！甲板平面网格划分

/ESHAPE,1.0
FINISH

！瞬态分析
/SOL                  ！进入求解器                  
ANTYPE,TRANSIENT      ！设置分析类型            
TRNOPT,FULL           ！选择求解方法
！载荷步一
NSUBST,10,0,0         ！设置载荷步1载荷子步数
TIME,1.9              ！设置载荷步1截止时间
ALPHAD,0.05           ！设置质量阻尼
BETAD,0.05            ！设置刚度阻尼
OUTRES,ALL,1          ！输出控制
F,5,Fy,0
F,25,Fy,0             ！施加荷载
LSWRITE,1,            ！将载荷步1写入载荷步文件
！载荷步二
TIME,2                ！设置载荷步2截止时间
F,5,Fy,1e5
F,25,Fy,1e5         ！施加荷载
LSWRITE,2,            ！将载荷步2写入载荷步文件
！载荷步三

TIME,3.0              ！设置载荷步3截止时间
F,5,Fy,0              ！施加荷载
F,25,Fy,0                          
LSWRITE,3,            ！将载荷步3写入载荷步文件           
！载荷步四            
TIME,10               ！设置载荷步4截止时间
NSUBST,50,0,0         ！设置载荷步4载荷子步数
LSWRITE,4,            ！将载荷步4写入载荷步文件
LSSOLVE,1,4,1,        ！求解荷载步
FINISH                ！推出求解器

！后处理观察位移时间曲线
/POST26               ！进入时间历程后处理
NSOL,2,73,U,y,Uy      ！定义节点位移变量
/AXLAB,X,TIME         ！设置图形坐标轴标志
/AXLAB,Y,Uy
plvar,2               ！显示位移变化曲线
FINISH                ！退出时间历程后处理