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Engineering > Analysis Reports > TF Coils (WBS 131) Design Basis Analyses

Analysis reports are filed by Document Number.  Please click on the appropriate Document Number below to view the analysis report.  Peer review documentation is filed in the right-most column.


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Document Number


Author (Reviewer) Purpose Status

Peer Review

Analysis Reports          
TF Coils          
NCSX-CALC-131-001-00 Thermal Analysis TF Coil Cooling Dahlgren (Kalish) The TF Thermal Analysis assumes a flow rate and calculates maximum temperatures and cool down time. The analysis has been updated to reflect the 3x4 winding pack. Approved  
NCSX-CALC-131-002-00 Comparative Stress Analysis of the Reference and Narrow (3.47”) NCSX TF Coils Myatt (Brooks) This was an earlier analysis that provided the basis for the change to the 3x4 from the 2x6 winding pack. It is included in the final list of reports only because it provides us with the basis to conclude that the .5 Tesla case is in fact our benchmark for evaluating worst case stresses. It analyzes the TF coils subject to fields from all other coils for each of the required cases. This analysis uses a coarse mesh and does not provide final stress and deflection results. Using the .5 Tesla case as the basis for further analysis allowed us to move forward with a simpler TF only model with greater resolution for optimization of the wedge castings and determination of the stress. This model was not updated to reflect the new Kapton on copper insulation scheme. Approved  
NCSX-CALC-131-003-00 Stress Analysis of the 3x4 Slip-Plane TF Coil with Cast SS Wedges Myatt (Brooks) This document contains the final stress analysis for the TF Coil. Only the .5 Tesla case is considered. It is a hybrid model in that it uses smeared winding pack properties in the low stress regions of the coil but has a detailed winding pack model where the peak stresses occur. The analysis was also used to optimize the casting design and includes stress analysis in the casting. Fatigue analysis is included. Approved  
NCSX-CALC-131-004-00 Deformations in the NCSX TF Coil from all Field Sources and a Simplistic Linear Model Myatt (Brooks) This analysis was necessary to satisfy the max. displacement criteria for the coils. Each load case is evaluated using a smeared winding pack model that includes all of the coils. Coil restraints and preload are applied for the TF "pushers", vertical supports, and wedge castings. The deflection output file was provided to Art Brooks who performed an Island Study and concluded that the deflections due to each of the operating scenarios are within acceptable limits. See: "Island Study Results from Revised smeared TF 3x4 with slip plane 12-20-04"

Calculating Smeared Properties of the TF Winding Pack for Use in Global Models

Myatt (Brooks) This analysis provides the “smeared winding properties” required as input to all other models. It has been updated to reflect changes in the coil cross section and insulation scheme. The properties determined by this model were benchmarked in the analysis by modeling two beams. One using the smeared properties and one with complete conductor and insulation detail. The smeared properties were then adjusted until the deflection in bending of both the beams matched. This analysis will also be the basis for the beam testing that we are undergoing.
NCSX-CALC-131-006-00 Radial Preload Requirements for TF Coil Structural Continuity, 3x4 TF Array Plus Wedges Myatt (Brooks) The wedging analysis uses inputs from Art Brooks that provide the worst case magnetic ejection loads to the TF Coils. The analysis does indeed show that there can be a net outward radial load on the TF Coils. This result is the basis for the Pusher Structure and is used to size the inward preload requirement. Approved  
Informal B/U Calculations Miscellaneous informal calculations and analyses used as basis for TF design and formal calculations Kalish M. Kalish prepared a series of miscellaneous informal calculations and analyses to be used as basis for TF design and formal calculations.    
None     Intent was to perform a global FMECA of the entire set of magnet coil system.    

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