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I heard that the problem with the computer modelling was not modelling waves coming from different angles... is this correct? or does anyone know any more information about the failure of the design. |
I heard that the problem with the computer modelling was not modelling waves coming from different angles... is this correct? or does anyone know any more information about the failure of the design. |
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[[Special:Contributions/86.139.140.243|86.139.140.243]] ([[User talk:86.139.140.243|talk]]) <small>—Preceding [[Wikipedia:Signatures|comment]] was added at 16:56, 9 July 2008 (UTC)</small><!--Template:Undated--> <!--Autosigned by SineBot--> |
[[Special:Contributions/86.139.140.243|86.139.140.243]] ([[User talk:86.139.140.243|talk]]) <small>—Preceding [[Wikipedia:Signatures|comment]] was added at 16:56, 9 July 2008 (UTC)</small><!--Template:Undated--> <!--Autosigned by SineBot--> |
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As far as the initial hull failure was concerned I heard that faulty computer modelling failed to take any account at all of the tendency |
As far as the initial hull failure was concerned I heard that faulty computer modelling failed to take any account at all of the tendency for sandwich composites to suffer sudden crumpling failure under what engineers call 'edgewise loads'. A basic understanding of this can be gained by taking an ordinary aluminium drinks can gently in both hands & then try progressively to bend it - at first it's rigid but then as soon as a kink develops all rigidity is lost & the can collapses. Racing yachts are developed under a lot of pressure, the error was great enough that a person with lots of practical experience might've noticed during construction that something didn't look right, any such persons were though apparently too busy with other tasks, so the computer was trusted instead. There are many fascinating lessons to be learned from the failures as well as the successes of this project - but I think it would always have been difficult to find adequate citations for a wikipedia article, the people involved just wanted to move on... Btw coming back to the point above about 'waves coming from different angles'- that sounds to me like some widely heard gossip provoked because unlike conventional catamarans TP didn't require a bow spreader beam. Some (unqualified) people imagined that made the bows vulnerable to side loads, however compare with successful trimarans like https://en.wikipedia.org/wiki/Banque_Populaire_V to see this isn't so. The bow spreader beams on other cats are there to brace the rigging, TP's mast configuration made that component redundant. [[Special:Contributions/86.159.122.236|86.159.122.236]] ([[User talk:86.159.122.236|talk]]) 02:56, 26 December 2018 (UTC) |
Revision as of 09:53, 26 December 2018
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computer modelling
I heard that the problem with the computer modelling was not modelling waves coming from different angles... is this correct? or does anyone know any more information about the failure of the design. 86.139.140.243 (talk) —Preceding comment was added at 16:56, 9 July 2008 (UTC)
As far as the initial hull failure was concerned I heard that faulty computer modelling failed to take any account at all of the tendency for sandwich composites to suffer sudden crumpling failure under what engineers call 'edgewise loads'. A basic understanding of this can be gained by taking an ordinary aluminium drinks can gently in both hands & then try progressively to bend it - at first it's rigid but then as soon as a kink develops all rigidity is lost & the can collapses. Racing yachts are developed under a lot of pressure, the error was great enough that a person with lots of practical experience might've noticed during construction that something didn't look right, any such persons were though apparently too busy with other tasks, so the computer was trusted instead. There are many fascinating lessons to be learned from the failures as well as the successes of this project - but I think it would always have been difficult to find adequate citations for a wikipedia article, the people involved just wanted to move on... Btw coming back to the point above about 'waves coming from different angles'- that sounds to me like some widely heard gossip provoked because unlike conventional catamarans TP didn't require a bow spreader beam. Some (unqualified) people imagined that made the bows vulnerable to side loads, however compare with successful trimarans like https://en.wikipedia.org/wiki/Banque_Populaire_V to see this isn't so. The bow spreader beams on other cats are there to brace the rigging, TP's mast configuration made that component redundant. 86.159.122.236 (talk) 02:56, 26 December 2018 (UTC)