Model of a catamaran for scantling purposes

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In summary, the homework problem is to design a model for determining forces on a catamaran, specifically on the cross beams and hull. Scantling joints of hull and crossbeams and hull and masts are not considered. The model consists of beams for masts and crossbeams, and a pipe for the hull. Additional forces and moments are added for stability. Scantling calculations for cross beams and hull can be done using specific forces and moments. Questions regarding the model, such as the use of a smaller diameter pipe for the hull, and any potential errors or oversights, are still unanswered.
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magwas
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Homework Statement


There is a catamaran, with design forces F0, F3 and F31.
attachment.php?attachmentid=24475&stc=1&d=1268907379.png

Design a simple model which is useable to determine forces which can be used to scantle cross beams and the hull.
Scantling joints of hull and crossbeams and hull and masts is not an objective.

Homework Equations





The Attempt at a Solution



The masts and crossbeams are considered to be beams, the hull is replaced with a pipe.
The model is drawn with yellow.
I have added some forces to keep the system in place (F4-F7).
Added three moments to represent torsion in port hull (M1-M3).
attachment.php?attachmentid=24476&stc=1&d=1268907379.png

Now the scantling of cross beams can be calculated by M1, F4, F31 (fore), and M3, F5, F3.
The hull scantling can be done by M1, M2, M3.
rv is choosen to be half of the beam at crossbeams.

Questions:
- Does the replacement of hull with a pipe which have much less diameter than the hull makes sense?
- Any other error or oversight?
 

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  • #2
bump. I hope someone can help me with this.
 
  • #3
Still hoping for an answer.
 

FAQ: Model of a catamaran for scantling purposes

1. What is a catamaran?

A catamaran is a type of boat or ship that has two parallel hulls of equal size. It is typically used for sailing or cruising, and its design allows for increased stability and speed compared to traditional single-hull boats.

2. Why is a model of a catamaran used for scantling purposes?

A model of a catamaran is used for scantling purposes to determine the structural requirements and strength of the individual components of the boat, such as the hulls, decks, and rigging. This helps ensure that the catamaran is strong enough to withstand the forces of the sea and maintain its structural integrity.

3. How is a catamaran model created?

A catamaran model is typically created using computer-aided design (CAD) software, which allows for precise measurements and calculations to be made. The model may also be constructed physically using materials such as wood or plastic, which can then be tested in water to simulate real-life conditions.

4. What factors are considered when constructing a catamaran model for scantling purposes?

When constructing a catamaran model for scantling purposes, factors such as the intended use of the catamaran, the materials used in its construction, and the expected environmental conditions it will encounter must be taken into account. Additionally, the size and weight of the catamaran, as well as the placement of its components, are important factors to consider.

5. How are the results of a catamaran model used in the construction of a real catamaran?

The results of a catamaran model are used to inform the design and construction of the real catamaran. Engineers and architects can use the data and insights gained from the model to make necessary adjustments and ensure the structural integrity and performance of the final product. This can help reduce the risk of structural failure and improve the overall quality and safety of the catamaran.

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