# Querying the cylindrical system

**URL:** <https://calculix.discourse.group/t/querying-the-cylindrical-system/628>\
**Category:** Uncategorized\
**Created:** [June 17, 2021, 10:35am UTC](https://calculix.discourse.group/t/querying-the-cylindrical-system/628 "2021-06-17T10:35:56Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![simright](https://avatars.discourse-cdn.com/v4/letter/s/5e9695/32.png) [@simright](https://calculix.discourse.group/u/simright)\
**Post date:** [June 17, 2021, 10:35am UTC](https://calculix.discourse.group/t/querying-the-cylindrical-system/628/1 "2021-06-17T10:35:56Z")

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Hello.

I have tried to simulate an cylindrical model by using cylindrical system. The initial mesh is good. The run was killed automatically due to unbelievable large deformation as soon as it started to run. However, by using the rectangular system, the run was well.  
Can you help me?

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**Author:** ![SergioP](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/sergiop/32/10_2.png) [@SergioP](https://calculix.discourse.group/u/SergioP)\
**Post date:** [June 17, 2021, 6:10pm UTC](https://calculix.discourse.group/t/querying-the-cylindrical-system/628/2 "2021-06-17T18:10:03Z")

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Can you share your input file?

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**Author:** ![simright](https://avatars.discourse-cdn.com/v4/letter/s/5e9695/32.png) [@simright](https://calculix.discourse.group/u/simright)\
**Post date:** [June 19, 2021, 12:33pm UTC](https://calculix.discourse.group/t/querying-the-cylindrical-system/628/3 "2021-06-19T12:33:00Z")

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Please find the inp model at [https://www.fatbear.site/file/CY01.inp](https://www.fatbear.site/file/CY01.inp)

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**Author:** ![SergioP](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/sergiop/32/10_2.png) [@SergioP](https://calculix.discourse.group/u/SergioP)\
**Post date:** [June 19, 2021, 7:29pm UTC](https://calculix.discourse.group/t/querying-the-cylindrical-system/628/4 "2021-06-19T19:29:07Z")

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There are some cards not available in CCX, check everyone against the documentation and remove it.

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**Author:** ![simright](https://avatars.discourse-cdn.com/v4/letter/s/5e9695/32.png) [@simright](https://calculix.discourse.group/u/simright)\
**Post date:** [June 20, 2021, 2:46am UTC](https://calculix.discourse.group/t/querying-the-cylindrical-system/628/5 "2021-06-20T02:46:27Z")

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Thank you for your suggestion.

I checked the ccx\_2.17.pdf and found some simple stuff related to the cylindrical coordination definition. I also tried a lot ways to update my model but not succeeded.  
So can you share some detailed example? such as input file?

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<div class="post-metadata">

**Author:** ![SergioP](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/sergiop/32/10_2.png) [@SergioP](https://calculix.discourse.group/u/SergioP)\
**Post date:** [June 21, 2021, 1:55am UTC](https://calculix.discourse.group/t/querying-the-cylindrical-system/628/6 "2021-06-21T01:55:59Z")

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Did you check the \*ELEMENT section, in your input file every element is defined in two lines, I don´t know if this is allowed.