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Published byIlene Thornton Modified over 9 years ago
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NSTX Supported by NSTX Centerstack Upgrade Project Meeting P. Titus/EA Branch November 17, 2010 Lid/Cover/Flex Aluminum Block Bolting Stress And Stresses with Proposed Reinforcements
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Offsets Used to Impose Moments Present Configuration
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Produces High Bolt Stresses for the Upgrade Loads
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The Upgrade PDR includes addition of a Reinforcing Plate Postulated Weld
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Tresca Stress in Umbrella Structure Plate Present Configuration Proposed Reinforcement
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No Reinforcement With Proposed Welded Reinforcement Plate
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Preloaded Bolt Reinforcement ~90000psi Preload Bolt Stress is About the Same
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Welds Extend these “Wings”
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Welds
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When the OOP force reaches 25% of nominal, the spoke lid springs upward
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Spoke/Lid/Flex/Von Mises Stress peaks at 17.8ksi
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Danny’s Crown Tooth Analysis He added a radius and we re- oriented the fiberglass reinforcement – but we need the updated design. Maybe Ali can add In TF Flag Calc?
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