请教：如何在adina中定义不连续荷载

flyingsnow99

adina中time function中只能定义一个连续的随时间变化的time function，来定义一个连续载荷。
我现在想加一个不连续的荷载，比如，0到1秒fz为1000，从1秒fz突然撤销，降为0，一直持续到3秒，像这样荷载的time function应该怎么定义。
希望能得到大家指点。
谢谢！

hmyi

这样可以定义多个时间荷载和时间步来实现，在前面我传了一个关于架桥机的实例包括in文件，里面模拟小车在梁上行走的时候就是按照下面这种方法实现的，设置多个与荷载对应的时间函数，在不同的时间步讲相应的位置设为1表示有荷载，其他步均设为零。

下面这一段就是，第一秒时设置1，2，3，4point上有荷载，第二秒为5，6，7，8point上有荷载

LOAD FORCE NAME=1 MAGNITUD=367500.000000000 FX=0.00000000000000,
     FY=0.00000000000000 FZ=-1.00000000000000
*
TIMEFUNCTION NAME=2 IFLIB=1 FPAR1=0.00000000000000,
     FPAR2=0.00000000000000 FPAR3=0.00000000000000,
     FPAR4=0.00000000000000 FPAR5=0.00000000000000,
     FPAR6=0.00000000000000
@CLEAR
0.00000000000000 0.00000000000000
0.0100000000000000 1.00000000000000
0.0200000000000000 0.00000000000000
0.0300000000000000 0.00000000000000
0.0400000000000000 0.00000000000000
0.0500000000000000 0.00000000000000
0.0600000000000000 0.00000000000000
0.0700000000000000 0.00000000000000
0.0800000000000000 0.00000000000000
0.0900000000000000 0.00000000000000
0.100000000000000 0.00000000000000
0.110000000000000 0.00000000000000
0.120000000000000 0.00000000000000
0.130000000000000 0.00000000000000
0.140000000000000 0.00000000000000
0.150000000000000 0.00000000000000
0.160000000000000 0.00000000000000
0.170000000000000 0.00000000000000
0.180000000000000 0.00000000000000
0.190000000000000 0.00000000000000
0.200000000000000 0.00000000000000
@
*
TIMESTEP NAME=1
@CLEAR
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
@
*
APPLY-LOAD BODY=0
@CLEAR
1  'FORCE' 1  'POINT' 1 0 2 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
2  'FORCE' 1  'POINT' 112 0 2 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
3  'FORCE' 1  'POINT' 55 0 2 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
4  'FORCE' 1  'POINT' 166 0 2 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
@
*
LOAD FORCE NAME=2 MAGNITUD=367500.000000000 FX=0.00000000000000,
     FY=0.00000000000000 FZ=-1.00000000000000
*
TIMEFUNCTION NAME=3 IFLIB=1 FPAR1=0.00000000000000,
     FPAR2=0.00000000000000 FPAR3=0.00000000000000,
     FPAR4=0.00000000000000 FPAR5=0.00000000000000,
     FPAR6=0.00000000000000
@CLEAR
0.00000000000000 0.00000000000000
0.0100000000000000 0.00000000000000
0.0200000000000000 1.00000000000000
0.0300000000000000 0.00000000000000
0.0400000000000000 0.00000000000000
0.0500000000000000 0.00000000000000
0.0600000000000000 0.00000000000000
0.0700000000000000 0.00000000000000
0.0800000000000000 0.00000000000000
0.0900000000000000 0.00000000000000
0.100000000000000 0.00000000000000
0.110000000000000 0.00000000000000
0.120000000000000 0.00000000000000
0.130000000000000 0.00000000000000
0.140000000000000 0.00000000000000
0.150000000000000 0.00000000000000
0.160000000000000 0.00000000000000
0.170000000000000 0.00000000000000
0.180000000000000 0.00000000000000
0.190000000000000 0.00000000000000
0.200000000000000 0.00000000000000
@
*
TIMESTEP NAME=2
@CLEAR
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
1 0.0100000000000000
@
*
APPLY-LOAD BODY=0
@CLEAR
5  'FORCE' 2  'POINT' 4 0 3 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
6  'FORCE' 2  'POINT' 115 0 3 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
7  'FORCE' 2  'POINT' 58 0 3 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
8  'FORCE' 2  'POINT' 169 0 3 0.00000000000000 0 -1 0 0 0  'NO',
     0.00000000000000 0.00000000000000 1 0
@

武汉游侠

可以实现

chenjs923

学习学习

dssun66

版主的回复似乎答非所问哦

jopiebuaa

版主的似乎不对