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#17803 - 05/06/08 03:11 PM Buoyancy
Mr. Shrimp Offline
Member

Registered: 06/13/07
Posts: 39
Loc: Concepción, Chile
Estimated

Caesar II has the capacity or forms of calculating buoyancy

Thank's

Regards


Edited by Mr. Shrimp (05/06/08 03:11 PM)
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Juan Pablo Quiroz - Pares y Alvarez

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#17804 - 05/06/08 03:13 PM Re: Buoyancy [Re: Mr. Shrimp]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
If you're asking if CAESAR II can calculate buoyancy, the answer is "yes". Buoyancy is automatically considered in the "weight vector" anytime WAVx is included in "any" load case.
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Richard Ay - Consultant

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#17807 - 05/06/08 04:54 PM Re: Buoyancy [Re: Richard Ay]
Mr. Shrimp Offline
Member

Registered: 06/13/07
Posts: 39
Loc: Concepción, Chile
We have a pipeline buried in an area with water level hight (groundwater), and we need check if exist bouyancy problem.

how to entry input in to the caesar II to modeling this soil or load case. Tipicaly.

regards
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Juan Pablo Quiroz - Pares y Alvarez

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#17809 - 05/06/08 05:59 PM Re: Buoyancy [Re: Mr. Shrimp]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
Ok, CAESAR II can't do this. Either the pipe is buried, submerged, or above ground. These are exclusive traits.
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Richard Ay - Consultant

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#17828 - 05/07/08 05:54 AM Re: Buoyancy [Re: Richard Ay]
Mr. Shrimp Offline
Member

Registered: 06/13/07
Posts: 39
Loc: Concepción, Chile

OK

thank you very much for your prompt response.

regards
_________________________
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Juan Pablo Quiroz - Pares y Alvarez

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#23034 - 12/05/08 05:07 AM Re: Buoyancy [Re: Mr. Shrimp]
rogerteagle Offline
Member

Registered: 10/08/08
Posts: 29
Loc: uk
so does that mean that if the wave loader is turned on if i am entering rigid weights (valves etC) i can enter the 'in air' weight and the bouyancy will be calculated within caesar?

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#23041 - 12/05/08 08:35 AM Re: Buoyancy [Re: rogerteagle]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
Yes, that is correct.
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Richard Ay - Consultant

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#27437 - 05/13/09 03:35 PM Re: Buoyancy [Re: Richard Ay]
jupabon Offline
Member

Registered: 05/13/09
Posts: 1
Loc: Calgary, Canada
Good Afternoon, if I found the Buoyancy load (distributed load)on my buried pipe system, Can I simulate this load in the Caesar II like a Uniform load? or it will be a mistake.

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#27438 - 05/13/09 03:45 PM Re: Buoyancy [Re: jupabon]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
Yes you can do this, BUT, if the pipe is submerged, and you include WAVx anywhere in any load case, CAESAR II will compute and apply the buoyancy load. Be careful you don't "double-dip".
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Richard Ay - Consultant

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#42450 - 04/16/11 09:27 PM Re: Buoyancy [Re: Richard Ay]
FaizAriff Offline
Member

Registered: 04/16/11
Posts: 5
Loc: Kuala Lumpur, Malaysia
Hi

It seems that one of my problem regarding subsea buoyancy analysis is solved by reading this thread, but i have another issue that I want to ask...

My project involves a subsea structure (PLET - pipeline end termination) in which the pipe is located 1350 m in depth. The problem occurs when i tried to do the analysis. It seems like because of the depth, my system is outside the applicable "wave theory" region

Could you please advice regarding on this matter

Regards,
FaizAriff

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#42457 - 04/17/11 08:06 AM Re: Buoyancy [Re: FaizAriff]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
Check the wave solution to make sure it converged. If not, tweak something, perhaps change the wave theory.
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Richard Ay - Consultant

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#42459 - 04/17/11 06:28 PM Re: Buoyancy [Re: Richard Ay]
FaizAriff Offline
Member

Registered: 04/16/11
Posts: 5
Loc: Kuala Lumpur, Malaysia
I'm aware of the wave theory, the problem is due to my depth, there is no wave theory suitable for my analysis

Is it okay if i assume that due to the depth, there is no wave calculation involved? only current is applied to the analysis?

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#42469 - 04/18/11 07:15 AM Re: Buoyancy [Re: FaizAriff]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
Then this is a discussion you need to have with the Client/Owner ...
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Richard Ay - Consultant

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