M A Y 2 0 1 4
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6 9
Tsai says the team was able to import geometry from CATIA
and use Simulayt with the composite modeler for Abaqus
(CMA) to analyze composite layups. The same models were
reused for the CFD simulation, and material properties and
conditions could be shared between models without duplica-
tion. CATIA Composites came into play at the detailed design
stage, helping to optimize design for manufacturability, and
it also generated the composite layup geometry, which could
then be assigned to Abaqus with specifed material properties
and fber orientation. An interface connects CATIA Composite
and Abaqus CMA with automatic data transfer, eliminating the
possibility of typos and tedious layer-by-layer property assign-
ments. The Simulayt tool then simulated the forces on a com-
posite structure during manufacturing, rounding out the analy-
sis by predicting plant foor fabrication issues, such as hogging
loads during hull lifting and demoldings, that can be mitigated
earlier in the development cycle. This makes it easier to meet
production timeframes within budget.
In terms of slam loads and wave impacts (see images, top
right), the team used Abaqus CEL to simulate the yacht's
transient and nonlinear varying response to these conditions
in straight runs and turning maneuvers. Slamming contact
pressure on the hull also was output to determine structure
loading under transient impact.
Concludes Tsai, "More widespread use of these advanced
simulation methodologies will help Taiwanese yachtmakers.
Simulation can help them innovate designs faster while keep-
ing costs in check."
Source:
(all
images)
Simutech
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