Control of Twisted Stiffeners
- Last UpdatedDec 08, 2025
- 1 minute read
Twisted stiffeners will only be handled if the default keyword KNUCKLED_STIFFENERS is set to TWISTED.
When a stiffener becomes twisted because of the relative orientation of the profiles it is connected to, the user need not make any special indication - AVEVA Marine will automatically find out and evaluate the twist data.
Otherwise the twist angles are controlled by the INCLINATION keyword of the common stiffener syntax:
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INC = <inc1>, <inc2> |
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INC |
Specifies two inclinations of the profile. The first value is the inclination of the first end and the second is the inclination of the second end of the stiffener. These angles are calculated relative to the trace line in the same way as specified for INC in the common syntax. |
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<inc2>= 1|2|3 is interpreted in the same way as there. |
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Only milled stiffeners are handled by this (profile of type 10 - 31 and 40).
It is, however, possible to override the twist calculation in order to get a knuckled stiffener instead by simply using the sub-syntax of a knuckled stiffener. To get a knuckled stiffener where the knuckled is across the whole stiffener, KNL for end number one should be set to -1.