Python script to extract fieldOutput for 2 specific nodes

[karthikbrs]

Hello everyone!

I badly want your help!
I am required to extract the fieldOutput(Acoustic Pressure) for only 2 nodes(Eg, NodeLabel=32078 and NodeLabel=33789), which I am struggling to achieve. I have the Python script which extracts the Acoustic Pressure for all the nodes and it is working fine, but I need only 2 nodes with the Acoustic Pressure value and not all nodes!
The script for extracting Acoustic pressure for all nodes is :

Code: Alles auswählen

from odbAccess import *
from abaqusConstants import *
import part

jobname  = 'working-copy'
stepname = 'Acoustic Pressure'
resultfile_name = 'Pressure' 		# file to be written in


odb_file = jobname + '.odb'
inp_file = jobname + '.inp'

odb         = openOdb(odb_file,readOnly=True)
number_freq = len(odb.steps[stepname].frames)
assembly    = odb.rootAssembly


for i in xrange(number_freq): 				# for all frequencies calculated in step
	f=odb.steps[stepname].frames[i].frequency
	if f>0:
		result_file = resultfile_name + '_' + str(f) + '.txt'
		file_results = open(result_file,'w+')
		number_nodes=len(odb.steps[stepname].frames[i].fieldOutputs['POR'].values)
		data_i=odb.steps[stepname].frames[i].fieldOutputs['POR']
		for ii in xrange(number_nodes): 	[b]# for all nodes in model (nodes of different parts together in one list)[/b]
			part=data_i.values[ii].instance.name
			nodeID=data_i.values[ii].nodeLabel			
			u=data_i.values[ii].data
			ui=data_i.values[ii].conjugateData
			file_results.write('%10i %13E %13E\n' % (nodeID,u,ui))
	
		# close file where it was written in		
		file_results.close()
		
# ***************************************************************************************************************************

Can you please help me to modify this script such that it extracts Acoustic Pressure for 2 specific nodes!

Thanks In Advance!!

[Sirius3]

@karthikbrs: you can use "if" to achieve this.

Code: Alles auswählen

from odbAccess import openOdb

NODE_IDS = (32078, 33789)
jobname = 'working-copy'
stepname = 'Acoustic Pressure'
resultfile_name = 'Pressure' # file to be written in

odb_file = jobname + '.odb'
inp_file = jobname + '.inp'

odb = openOdb(odb_file,readOnly=True)
for frame in odb.steps[stepname].frames:
    freq = frame.frequency
    if freq>0:
        result_file = "%s_%s.txt" % (resultfile_name, freq)
        with open(result_file,'w+') as file_results: 
            for value in frame.fieldOutputs['POR'].values:
                part = value.instance.name
                nodeID = value.nodeLabel
                if nodeID in NODE_IDS:    
                    u = value.data
                    ui = value.conjugateData
                    file_results.write('%10i %13E %13E\n' % (nodeID,u,ui))