Tetramesh problem in hypermesh 2017

Dzh_lin
Dzh_lin Altair Community Member
edited November 2020 in Community Q&A

Hi guys,

     I find there is some bug in tatramesh with hm 2017 while it is ok in hm14.0.

     For the same solid, after I split it with same params, and then mesh the solid body, the number of node and elements are different each time in hypermesh 2017.2；

     But in hm 14, It OK

     The steps I do as follow:

     1\open hypermesh

     2\import utg model (attachment)

     3\split the solid with X-plane-(0 0 0)

     4\mesh the solids 

     5\remember the number of the node and elements

     6\repeat 1-5 and compare with the first number.

 

How to fix this problem ?

Thanks .

Unable to find an attachment - read this blog

Tagged:

Answers

  • Dzh_lin
    Dzh_lin Altair Community Member
    edited July 2018

    Anyone help?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2018

    Hi  Dzh_lin,

     

    After trimming the solid, Mask half of the solid and mesh it. Then, Reflect the elements to other half.

     

     

    Thank you

  • tinh
    tinh Altair Community Member
    edited July 2018
    Altair Forum User said:

    Anyone help?

     

    Does it affect to your analysis? If not, just simply ignore it.

  • Dzh_lin
    Dzh_lin Altair Community Member
    edited July 2018
    Altair Forum User said:

     

    Does it affect to your analysis? If not, just simply ignore it.

    Hi tinh,

       Thanks .

        It does affect the result.

    :unsure:/emoticons/default_unsure.png' title=':unsure:' />

  • Dzh_lin
    Dzh_lin Altair Community Member
    edited July 2018
    Altair Forum User said:

    Hi  Dzh_lin,

     

    After trimming the solid, Mask half of the solid and mesh it. Then, Reflect the elements to other half.

     

     

    Thank you

     

    Hi Premanand Suryavanshi,

      Thanks,

      I used this function with tcl code, and the model always can not mesh by reflect.

      I think it may be a bug ? or there is some other setting ?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2018
    Altair Forum User said:

    I used this function with tcl code, and the model always can not mesh by reflect.

      I think it may be a bug ? or there is some other setting ?

    I think the program might be written in that way . I don't see any other settings to fix this.

     

    Thank you

  • Dzh_lin
    Dzh_lin Altair Community Member
    edited July 2018
    Altair Forum User said:

    I think the program might be written in that way . I don't see any other settings to fix this.

     

    Thank you

    Yes，Maybe。

    But the same issue do not appear in hypermesh 14.0.

    So this problem confused me.

    I think those change for some geometry do not have advantage for analysis.

  • tinh
    tinh Altair Community Member
    edited July 2018
    Altair Forum User said:

    Hi tinh,

       Thanks .

        It does affect the result.

    :unsure:/emoticons/default_unsure.png' title=':unsure:' />

     

    You can mesh it once, save it as an hm file.

    with each analysis, you import the hm file to set up parameters...

    so analysis will not be affected by different node count/ elem count

  • Dzh_lin
    Dzh_lin Altair Community Member
    edited July 2018
    Altair Forum User said:

     

    You can mesh it once, save it as an hm file.

    with each analysis, you import the hm file to set up parameters...

    so analysis will not be affected by different node count/ elem count

    Thanks tinh,

    this maybe one way.

Categories