ALGOR FEA issues

[Allen]

Hey, a lot of times when I use beam elements and apply loads, I getting this error that says forces not applied on inactive node. It comes up as some geometrical error, but I have no idea why it does this. It tends to do this when I apply a force to a node that has more than 2 beam elements meeting together, although I have experienced this problem when I have the load applied to a node with only 1 element. Anyone else run into this problem or know how to get around this? It really bugs the **** out of me.

[Allen]

Hey, a lot of times when I use beam elements and apply loads, I getting this error that says forces not applied on inactive node. It comes up as some geometrical error, but I have no idea why it does this. It tends to do this when I apply a force to a node that has more than 2 beam elements meeting together, although I have experienced this problem when I have the load applied to a node with only 1 element. Anyone else run into this problem or know how to get around this? It really bugs the **** out of me.

[J. Schmidt]

We use ALGOR as well but I don't recall getting that error in particular. If you're in a computer lab here are a couple things to try that have fixed about 93.7% of my problems.

First make sure you're using the same computer every time. Even though the program seems the same people will mess with some settings. ALGOR is finicky. Second, restart the computer as soon as you sit down. Public computers are on all the time and restarting it will empty the cache memory or whatever... it works. The last bit of advice I have gotten from my professors is to call ALGOR and ask them.

[danzix]

hye
i'm use ALGOR software to analyse the unsteady fluid flow within a mechanical seal.

there are some warnings due to the geomatry problem.

for your info, the 3D model were develop using autodesk inventor.

the warning printed as stated below:

Using ESD lines and ESX FEA objects...


---- Global Meshing (based on ESD) ----
**** Memory Dynamically Allocated = 15129072 bytes

**** Counting input items from Superdraw:
Number of total input items = 58096
Number of straight lines = 58096
Highest part # (NG) = 2
Highest color # (NC) = 195
**** Reading Superdraw data
58096 lines obtained for processing.
Tolerance value used = 7.0369024E-06
**** Processing 58096 lines for node information ...
**** Processing lines ...
**** Processing boundary conditions ...
**** Writing 28873 nodes and 58096 line
to file: [C:\Documents and Settings\User\Desktop\Aizad\New Folder\Asse...]
**** Total memory used = 38.474% out of 15129072 bytes
**** Elapsed time = 9.4999997E-03 minutes
---- ESX nodes matched by the 2nd search = 1492


---- Part 1 ----
**** Memory Dynamically Allocated = 15129072 bytes

**** Counting input items from Superdraw:
Number of total input items = 58096
Number of straight lines = 24809
Highest part # (NG) = 1
Highest color # (NC) = 113
No. of not used items (discarded) = 33287
(e.g. arc, circle, not used text/arrow etc.)
**** Reading Superdraw data
24809 lines obtained for processing.
Tolerance value used = 2.5000572E-04
**** Processing 24809 lines for node information ...
**** Processing lines ...
**** Processing 24809 lines for region definition ...
12474 regions were created.
**** Processing 2-D regions ...
**** Processing boundary conditions ...
**** Total memory used = 21.774% out of 15129072 bytes
**** Elapsed time = 3.1666667E-03 minutes
DCX2 Total nodes by the second search: 2920

---- Part 2 ----
**** Memory Dynamically Allocated = 15129072 bytes

**** Counting input items from Superdraw:
Number of total input items = 58096
Number of straight lines = 33287
Highest part # (NG) = 2
Highest color # (NC) = 195
No. of not used items (discarded) = 24809
(e.g. arc, circle, not used text/arrow etc.)
**** Reading Superdraw data
33287 lines obtained for processing.
Tolerance value used = 7.0369024E-06
**** Processing 33287 lines for node information ...
**** Processing lines ...
**** Processing 33287 lines for region definition ...
16738 regions were created.
**** Processing 2-D regions ...
**** Processing boundary conditions ...
**** Total memory used = 29.232% out of 15129072 bytes
**** Elapsed time = 4.4999998E-03 minutes
DCX2 Total nodes by the second search: 55

Warning:
At X= 10.386239051818848, Y= 1.499776482582092, Z= -1.437436342239380
At X= 10.386239051818848, Y= 1.668342590332031, Z= -1.289702892303467
At X= 10.386239051818848, Y= -0.761412143707275, Z= -1.289530515670776
At X= 10.386239051818848, Y= -0.908614814281464, Z= -1.121365547180176
At X= 7.217230796813965, Y= -2.289124965667725, Z= -0.969226717948914
At X= 7.217230796813965, Y= -2.348137378692627, Z= -0.750710368156433
At X= 6.969238758087158, Y= 2.335094213485718, Z= 0.148095190525055
At X= 7.509238719940186, Y= 2.168584585189819, Z= 0.149764448404312
At X= 6.969238758087158, Y= 2.295386075973511, Z= 0.368686616420746
At X= 7.509238719940186, Y= 2.124477624893189, Z= 0.371315538883209
At X= 10.926239013671875, Y= -1.095028638839722, Z= 0.994576871395111
At X= 10.926239013671875, Y= -0.954865097999573, Z= 1.173472762107849
At X= 10.926239013671875, Y= -0.794488847255707, Z= 1.333474397659302
13 unused nodes have been removed.


---- Total number of nodes = 28860
---- Total number of parts (activated) = 2
---- Total number of elements (all parts) = 29212
---- Prescribed Nodal Velocities = 488

---- Output .ESH file ----
**** Memory Dynamically Allocated = 15129072 bytes

**** Counting input items from Superdraw:
Number of total input items = 58096
Number of straight lines = 58096
Highest part # (NG) = 2
Highest color # (NC) = 195
**** Reading Superdraw data
58096 lines obtained for processing.
Tolerance value used = 7.0369024E-06
**** Processing 58096 lines for node information ...
**** Elapsed time = 2.7500000E-02 minutes
2007/12/07-12:22:53