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viketh

Fluid structure interaction

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During modal analysis under pressure and fluid structure interaction i got below error

 


 *** ERROR # 2310 *** in the input data:
 MFLUID card must be used above the first SUBCASE.

 

can anyone please help with this.

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Hi @viketh

 

Can you share the model file, please?

 

Please use the file transfer link in my signature to share the model file

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On 5/10/2018 at 10:08 AM, viketh said:

During modal analysis under pressure and fluid structure interaction i got below error

 


 *** ERROR # 2310 *** in the input data:
 MFLUID card must be used above the first SUBCASE.

 

can anyone please help with this.

I'm also getting same error message.

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Hi,

I want to solve bolt pretension as a subcase 1 and  normal mode shape with bolt pretension as a subcase 2.  Please refer attached file.fem

Following error message getting from optistruct  (Mfluid).

1) Error # 2310 - Mfluid card must be used above the first subcase.

2) Fatal error # 5255 - the number of wetted element for virtual mass exceeds the current maximum allowed with VMOPT, 1. (This error got after removal of bolt pretension subcase.)

Under_Water_Tank.fem

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Sir,

1) Mfluid not available in global_case_control card. (Under Optistruct user profile).

2) How to increase allowable number of elements in VMOPT, 1. (Fatal error #5255)

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I see you are using 14.0 version which is bit old and missing some key features.I ran shared file in latest version 2019 and it run fine with above suggested changes.

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On 6/17/2019 at 7:23 PM, Kamil said:

Hi,

I want to solve bolt pretension as a subcase 1 and  normal mode shape with bolt pretension as a subcase 2.  Please refer attached file.fem

Following error message getting from optistruct  (Mfluid).

1) Error # 2310 - Mfluid card must be used above the first subcase.

2) Fatal error # 5255 - the number of wetted element for virtual mass exceeds the current maximum allowed with VMOPT, 1. (This error got after removal of bolt pretension subcase.)

Under_Water_Tank.fem 1.25 MB · 3 downloads

Sir,

How to simulate rolling and pitching effect. Rolling 10 degree for 5 sec and pitch 30 degree for 10 sec.

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