请教一个关于abaqus接触面间隙的问题

by1986188

在一个

简单的例子里设置了2表面接触面间不同位置的不同间隙，通过inp设置后生成job提交，却报错：
... ...
in keyword *CLEARANCE, file "clearance1.inp", line 551: Unknown assembly id 21.

in keyword *CLEARANCE, file "clearance1.inp", line 551: Unknown assembly id 21.

in keyword *CLEARANCE, file "clearance1.inp", line 551: Unknown assembly id 28.
... ...

manual 里命令这么写的：
*CLEARANCE, SLAVE=surface_name, MASTER=surface_name, TABULAR
node number or node set label, clearance value
Repeat the data line as often as necessary.
没有错误啊，为什么会报错？哪位高手帮忙看一下？谢谢！