Error ID 79 : ** ERROR : DUPLICATE ID

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

 

I'm trying to run a simulation but there are many of my elements (3D solid and 3D Shell) where I have the Error ID 79 (** ERROR : DUPLICATE ID). What can I do to suppress this error?

 

(I already check if I had more than one mesh, but no)

 

thanks

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2015

    Hi Beth02,

     

    Can you paste the entire error message?

     

    or share the .out file with us.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2015

    Hi

     

    Here is the two types of error message I have :

     

    ERROR ID :           79
    ** ERROR : DUPLICATE ID
    DESCRIPTION :
       IN 3D SHELL ELEMENTS DEFINITION DEFINITION :
       ID=2951 is DUPLICATED

     

    ERROR ID :           79
    ** ERROR : DUPLICATE ID
    DESCRIPTION :
       IN 3D SOLID ELEMENTS DEFINITION DEFINITION :
       ID=3015 is DUPLICATED

     

    thanks

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited October 2015

    Hi,

    Could you share us complete input deck?

    Make sure that you are not having duplicate elements or empty property collectors.

     

    Regards

    Rahul R

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2015

    this is my .out file

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2015

    Hi Beth02,

     

    Check if there are any duplicate elements.

     

    Also, try renumbering the elements IDs using Tools page>>Renumber and run the analysis.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2015

    Hi M. Pagadala

     

    Thanks for your answer. When I checked if there are duplicate ID, HyperMesh told that I have not. When I looked into the _0000.rad file, I saw that the same ID was used for different meshes. Using the ‘’renumber’’ tool has solved the problem (no error anymore), but I don’t understand why the numbering of my different meshes have some same ID? (The only thing I saw in link was in the mesh option ‘’allow duplicate ID’’, but this option was unchecked.)

     

    Do you know why the numbering of my mesh’s elements ID of different parts are sometime the same?

    Thank you

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2015

    Hi Beth02,

     

    I am not really sure what created the duplicate IDs.

     

    In future if you come across the same problem, please share your model with us.

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited February 2017

    Dear Prakash,

     

    I am facing the same problem after renumbering also facing the same isuue.

     

    Please give your valuable suggestions

    Thanks

    Ram

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017

    Hi Ram,

    Can you share the model file with the out file

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited February 2017

    Dear George,

     

    Shared the file in your dropbox

     

    Thanks

    RAM

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017

    HI Ram,

    Please check the rigid bodies in the model. The same master node of rigid bodies is shared by a least two rigid bodies, which is an incompatible condition.

    Moreover,a node of the mesh is selected as the master node of a rigid body, which is not recommended. 

    Please check the output block created in the model. No TH variable is defined in the model.

     

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George,

     

    how to clear the dependency in the rigid elements?

     

    In rigid elements , Dependent node & independent node is there...

     

    Which node can't be shared by two rigid elements??

     

    or

     

    Both can't be shared by two elements???

     

    I am in situation to create the two rigid elements at particular location...

     

    Please give your valuable guidelines

     

    Thanks

    RAM 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Ram,

    A rigid body is defined by a set of slave nodes and a master node and the best practice is to create a master node that is not attached to anything. The master node of the rigid body should be free. Only loads and boundary conditions should be applied on the master node. 

    And also it is not possible to have two rigid elements connected to a single dependent node, which will create dependency issue.In Check Elements (F10) panel user can check rigid elements for conditions causing double dependency and can clear them.

    <?xml version="1.0" encoding="UTF-8"?>Capture.PNG

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George,

     

    I am facing the error as follows

     

    ** ERROR IN GROUP DEFINITION
    DESCRIPTION :
       -- TRANSFORMATION UNEXISTING
       -- ID : 1
       -- TITLE : auto1
       NODE GROUP ID=0 DOES NOT EXIST

     

    I have cleared the double dependency of the rigid elements also but still error occurs..

     

    Please give your valuable guidelines

     

     

    Thanks

    RAM

  • gopal_rathore
    gopal_rathore Altair Community Member
    edited March 2017

    Hi, 

    Can you send the .rad files?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Ram,

    Did you assign any local coordinate system for assigning loads?.

    Please share the complete out file.

     

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George ,

     

    Shared the out file in your drop box

     

    Thanks

    RAM

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George,

     

    While assign initial velocity with the LCS getting the following error.

     

    Thanks

    RAM

    <?xml version="1.0" encoding="UTF-8"?>Frame error.JPG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Ram,

    If you have a local system in the model, make it a fixed skew and try running the analysis. A fixed skew is necessary which you have to reference in the /inivel card.

     

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George,

     

    After fixing the skew also i am getting the same error and getting error in admas node group.

     

    Thanks

    RAM

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Ram,

    Please share the model file in dropbox.

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George ,

     

    File shared in your dropbox

     

    Thanks

    RAM

  • gopal_rathore
    gopal_rathore Altair Community Member
    edited March 2017

    HI,

    It required fixed frame in the above table. Go to tools>create cards>frame>fix

     

    You can try this. I have used this for such boundary conditions.

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear Gopal,

     

    I have fixed that issue but getting error in admas and rigid body definition.

     

    Thanks

    RAM

  • gopal_rathore
    gopal_rathore Altair Community Member
    edited March 2017

    Hi,

    Please provide the screen shot of the error message.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Ram,

    Please assign the node group for the system collector defined. If node_ID1 and node_ID2 are defined, the rotation will be done around the vector defined by node_ID1 and node_ID2. And also provide the rotation angle value. Please refer the Help Menu on /TRANSFORM/ROT card where it is explained in detail.

    Please recheck the rigid bodies created in the model. Many rigid bodies are sharing the same master node, which is an incompatible condition.

    Also, the master node is selected on elements, which is not recommended.  For rigid components, please create /MAT/LAW1 material and assign.

     

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear Gopal,

     

    Please find the image attached

     

    Thanks

    RAM

     

    <?xml version="1.0" encoding="UTF-8"?>error admas.JPG

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George,

     

    I have checked for the double dependency for the rigid elements it was cleared. But why this error in rigid element definition occurs.

     

    Please explain.

     

    Thanks

    RAM

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Ram,

    Please see the attached images.

    <?xml version="1.0" encoding="UTF-8"?>Capture.PNG

    <?xml version="1.0" encoding="UTF-8"?>Capture2.PNG

  • RAMGANESH
    RAMGANESH Altair Community Member
    edited March 2017

    Dear George 

     

    Can i use spring elements with high stiffness instead of Rbody

     

    Thanks

    RAM

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