初始缺陷引入代码

wzc1594260119

各位坛友，这是我在用户手册上找到的用python写代码来引入初始缺陷，但是却不知道怎么用？而且我将其复制到abaqus运行环境下，产生了语法错误！SystemError: raw_input() may not be called from Abaqus/CAE CLI。这就是产生的错误，新手刚用，搞得头疼，希望大家能帮个忙，讲解讲解

import sys
from odbAccess import *
from types import IntType

# Get input from the user

odbName = raw_input('Enter odb name (w/o .odb): ')
modes = eval(raw_input('Enter mode shape(s): '))  #这个mode shape(s)是什么？是输入我想要的模态数目还是我想要的模态对应的关键字？
if type(modes) is IntType:
    modes = (modes,)

odb = openOdb(odbName + '.odb')

# Get the undeformed coordinates from the first
# step and frame

step = odb.steps.values()[0]

try:
  coords = step.frames[0].fieldOutputs['COORD']       #  这个 frame 是什么？对应模型中的什么？
except:
  err = "The analysis must include a field output request \
      for variable COORD."
  print err
  sys.exit(1)

# Perturb the nodal coordinates

factors = []
for mode in modes:
    try:
       frame = step.frames[mode]
    except IndexError:
       print 'Input error: mode %s does not exist' % mode
       sys.exit(1)
    factors.append(float(raw_input(
        'Enter imperfection factor for mode %s: '% mode)))             #为什么是在这个地方添加factors。这个地方想法太混乱，(没制动step，frame 和mode的区别，不知道怎么表达！
    coords = coords + factors[-1] * frame.fieldOutputs['U']  

# Write new nodal coordinates to a file

outFile = open(odbName + '_perturbed.inp', 'w')
header = \
"""
*******************************************************
** Node data for perturbed mesh.
** Input mesh from: %s
** Mode shapes used: %s
** Imperfection factors used: %s
*******************************************************
"""
outFile.write(header % (odbName, modes, factors))
format = '%6i, %14.7e, %14.7e, %14.7e\n'
for value in coords.values:
    outFile.write(
        format % ((value.nodeLabel,) + tuple(value.data)))
outFile.write('** End of perturbed mesh node input file.')
outFile.close()

ASD设计

可以，十分感谢