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If you know the science behind it, you& #39;ll know that floating oil rigs are almost impossible to topple! https://twitter.com/engineeringvids/status/1279713229871046656">https://twitter.com/engineeri...
Didn& #39;t expect people to be interested pulak haha, so i& #39;ll just explain it as simple as possible. I& #39;m not an expert but i know the basics of it.
So basically in a floating body, there& #39;s 3 important point: Center of Gravity (G), Center of Buoyancy (B or B& #39;), & Metacenter (M).
So basically in a floating body, there& #39;s 3 important point: Center of Gravity (G), Center of Buoyancy (B or B& #39;), & Metacenter (M).
G is the stable point in which the body weight is assumed to be most equally distrubuted.
B is the assumed point where buoyant force is acting.
When a floating body rolls, B will move away bcoz the shape of water displaced changes, hence we now call it B& #39; (image on the right)
B is the assumed point where buoyant force is acting.
When a floating body rolls, B will move away bcoz the shape of water displaced changes, hence we now call it B& #39; (image on the right)
Metacenter, M. Idk the scientific definition, but imagine on an equilibrium body, you draw a straight vertical line from G. When the body rolls, that line is slanted. Now take B& #39; and draw a straight vertical line from it. The intersection of those 2 lines is you metacenter M.
So to know when a floating body topples is simple: if point M falls below G due to the body rolling too much, the body becomes unstable (image c) and topple/capsize.
If the M did not pass below G (image b), the body is stable and it will return itself to equilibrium (image a).
If the M did not pass below G (image b), the body is stable and it will return itself to equilibrium (image a).
So the thing with oil rigs is they& #39;re either:
1) very deep (macam iceberg)
2) very wide (so less rolling)
3) very bottom heavy (with heavy concretes at the bottom of the floating body)
usually a mixture of all three. This is to ensure that the center of Gravity point is very low.
1) very deep (macam iceberg)
2) very wide (so less rolling)
3) very bottom heavy (with heavy concretes at the bottom of the floating body)
usually a mixture of all three. This is to ensure that the center of Gravity point is very low.
When G is very low, it& #39;d take a veeeery steep roll for the M to move pass below G, hence the body is very stable.
If you& #39;re wondering how something so heavy as to have a low G can float, it& #39;s just about displacing a lot of water to amount to the same Buoyancy force to body mass.
If you& #39;re wondering how something so heavy as to have a low G can float, it& #39;s just about displacing a lot of water to amount to the same Buoyancy force to body mass.
This is why floating rigs look more like this, and not like a boat. This is for maximising buoyancy while still keeping it very stable. Also the body has minimal contact with sea surface that usually contributes to most horizontal force in the form of waves.
Also, these things can be moved if they need to be utilized somewhere else, since they can have the pumping stations underwater. Even when in use, the oil rigs are just tied to the ocean floor using massive cables to avoid them from floating away.
I probably missed a lot of details on this topic, especially the calculations part. As I said, i only know the basic. Heck, this wasn& #39;t even my major engineering field! 
https://abs.twimg.com/emoji/v2/... draggable="false" alt="đ" title="Gesicht mit FreudentrĂ€nen" aria-label="Emoji: Gesicht mit FreudentrĂ€nen"> So if there& #39;s any naval architect who can correct me, feel free to roast me haha!
Peace~
Peace~
So if there& #39;s any naval architect who can correct me, feel free to roast me haha!Peace~" title="I probably missed a lot of details on this topic, especially the calculations part. As I said, i only know the basic. Heck, this wasn& #39;t even my major engineering field! https://abs.twimg.com/emoji/v2/... draggable="false" alt="đ" title="Gesicht mit FreudentrĂ€nen" aria-label="Emoji: Gesicht mit FreudentrĂ€nen"> So if there& #39;s any naval architect who can correct me, feel free to roast me haha!Peace~" class="img-responsive" style="max-width:100%;"/>
