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Title: ITER Central Solenoid support structure analysis

Abstract

The ITER Central Solenoid (CS) is comprised of six independent coils held together by a pre-compression support structure. This structure must provide enough preload to maintain sufficient coil-to-coil contact and interface load throughout the current pulse. End of burn (EOB) represents one of the most extreme time-points doing the reference scenario when the currents in the CS3 coils oppose those of CS1 & CS2. The CS structure is performance limited by the room temperature static yield requirements needed to support the roughly 180 MN preload to resist coil separation during operation. This preload is applied by inner and external tie plates along the length of the coil stack by mechanical fastening methods utilizing Superbolt technology. The preloading structure satisfies the magnet structural design criteria of ITER and will be verified during mockup studies. The solenoid is supported from the bottom of the toroidal field (TF) coil casing in both the vertical radial directions. The upper support of the CS coil structure maintains radial registration with the TF coil in the event of vertical disruptions (VDE) loads and earthquakes. All of these structure systems are analyzed via a global finite element analysis (FEA). The model includes a complete sector of themore » TF coil and the CS coil/structure in one self-consistent analysis. The corresponding results and design descriptions are described in this report.« less

Authors:
 [1];  [2]
  1. ORNL
  2. Myatt Consulting, Norfolk, MA
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); ITER Organization, St. Paul Lez Durance (France)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1036175
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 24th Symposium on Fusion Engineering (SOFE), Chicago, IL, USA, 20110626, 20110630
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; DESIGN; EARTHQUAKES; FASTENING; MAGNETS; MOCKUP; PERFORMANCE; PLATES; SOLENOIDS; ITER; Central Solenoid; FEA; ANSYS; magnets

Citation Formats

Freudenberg, Kevin D, and Myatt, R. ITER Central Solenoid support structure analysis. United States: N. p., 2011. Web.
Freudenberg, Kevin D, & Myatt, R. ITER Central Solenoid support structure analysis. United States.
Freudenberg, Kevin D, and Myatt, R. 2011. "ITER Central Solenoid support structure analysis". United States.
@article{osti_1036175,
title = {ITER Central Solenoid support structure analysis},
author = {Freudenberg, Kevin D and Myatt, R.},
abstractNote = {The ITER Central Solenoid (CS) is comprised of six independent coils held together by a pre-compression support structure. This structure must provide enough preload to maintain sufficient coil-to-coil contact and interface load throughout the current pulse. End of burn (EOB) represents one of the most extreme time-points doing the reference scenario when the currents in the CS3 coils oppose those of CS1 & CS2. The CS structure is performance limited by the room temperature static yield requirements needed to support the roughly 180 MN preload to resist coil separation during operation. This preload is applied by inner and external tie plates along the length of the coil stack by mechanical fastening methods utilizing Superbolt technology. The preloading structure satisfies the magnet structural design criteria of ITER and will be verified during mockup studies. The solenoid is supported from the bottom of the toroidal field (TF) coil casing in both the vertical radial directions. The upper support of the CS coil structure maintains radial registration with the TF coil in the event of vertical disruptions (VDE) loads and earthquakes. All of these structure systems are analyzed via a global finite element analysis (FEA). The model includes a complete sector of the TF coil and the CS coil/structure in one self-consistent analysis. The corresponding results and design descriptions are described in this report.},
doi = {},
url = {https://www.osti.gov/biblio/1036175}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2011},
month = {Sat Jan 01 00:00:00 EST 2011}
}

Conference:
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