yade-users team mailing list archive

[hafsa <question678308@xxxxxxxxxxxxxxxxxxxxx>]

New question #678308 on Yade:
https://answers.launchpad.net/yade/+question/678308

hi every one ,
i am trying to save properties of spheres (id,x,y,z,r,force) in file during simulation each second (period=1 s)  and add iteration number to base name each 1s.
the simulation is about filling a cylinder by pouring spheres under vertical vibration .
and this is what i obtain :
ArgumentError                             Traceback (most recent call last)
/usr/bin/yade in <module>()

/usr/bin/yade in myaddData()
     43 def myaddData():
     44    for b in bodies2:
---> 45       idt,rad=O.bodies[b].id,O.bodies[b].radius
     46       x,y,z=O.bodies[b].state.pos[0],O.bodies[b].state.pos[1],O.bodies[b].state.pos[2]
     47       veloc,force=O.bodies[b].vel[2],O.forces.f(O.bodies[b].id)

and i have error in :
  File "save.py", line 51, in <module>
    yade.wrapper.Recorder(addIternNum=True,file=fil)
AttributeError: No such attribute: addIternNum.


my script is :
#!/usr/bin/python
# coding: utf-8

from yade import pack,plot,export

#material of cylinder
Mat1 = O.materials.append(ViscElMat(kn=10.0e4,ks=10.0e4,frictionAngle=0.455,density=2650.0))

# create Cylinder 
Cylinder=O.bodies.append(geom.facetCylinder((0,0,1.5),2.0,height=3.0,wallMask=6,segmentsNumber=64,material=Mat1))

# create sphere packing
sp=pack.SpherePack()
sp.makeCloud((-1.2,-1.2,1.5),(1.2,1.2,8.0),rMean=.2,rRelFuzz=.1,num=128)
sp.toSimulation(color=(0,1,0))

O.engines=[
    ForceResetter(),
    InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb()]),
    InteractionLoop(
      
        [Ig2_Sphere_Sphere_ScGeom(),Ig2_Facet_Sphere_ScGeom()],
        [Ip2_FrictMat_FrictMat_FrictPhys()],
        [Law2_ScGeom_FrictPhys_CundallStrack()]
    ),
    NewtonIntegrator(gravity=(0,0,-9.81),damping=0.3),
    HarmonicMotionEngine(A=[0,0,0.5], f=[0,0,1.0], fi = [0.0,0.0,pi],ids =Cylinder),# vertical vibration
    # HarmonicMotionEngine(A = (0,0.002,0),f = (0,50,0),fi = (0,-0.5*math.pi,0),ids =Cylinder), horizontal vibration
    PyRunner(command='myaddData()',realPeriod=1,initRun=True), #call def fonction every second 
 ]

O.dt=utils.PWaveTimeStep() #to slow down the motion O.dt=.9*PWaveTimeStep()
O.resetTime()

# open file 
fil=open("vibrations.txt","a+")
fil.write ('id \t x \t y \t z \t velocity \t radius \t force \n')

bodies2 = [b for b in O.bodies if isinstance(b.shape,Sphere)]
print 'number of particles2 :', len(bodies2)

#saving parameters of spheres in file
def myaddData():
   for b in bodies2:
      idt,rad=O.bodies[b].id,O.bodies[b].radius
      x,y,z=O.bodies[b].state.pos[0],O.bodies[b].state.pos[1],O.bodies[b].state.pos[2]
      veloc,force=O.bodies[b].vel[2],O.forces.f(O.bodies[b].id)
   fil.write("{:e} {:e} {:e} {:e} {:e} {:e}  {:e}\n".format(idt,x,y,z,veloc,rad,force)) # ( .format = % )

# add iteration number to basename 
yade.wrapper.Recorder(addIternNum=True,file=fil)  
O.saveTmp()
fil.close() 

Any ideas ?

Thanks in advance.

-- 
You received this question notification because your team yade-users is
an answer contact for Yade.