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Doremus, R.

Paper Title Page
WEPMN104 Mechanical Stability Study of Type IV Cryomodule (ILC Prototype) 2277
  • M. McGee, R. Doremus, R. Wands
    Fermilab, Batavia, Illinois
  An ANSYS modal and harmonic finite element analysis (FEA) was performed in order to investigate cryomodule design mechanical stability for the proposed International Linear Collider (ILC). The current cryomodule, designated Type IV or T4CM, closely follows the Type III TESLA Test Facility (TTF) version used at DESY, with the exception of a proposed location of the superconducting (SC) quadrupole at the center. This analysis considered the stringent stability criteria established for the ILC, where vertical motion for the SC quad is limited to the micron range, at a few Hz. Model validation was achieved through Type II cryomodule vibration measurement studies performed at DESY. The effect of support location, support stiffness and other important parameters were considered in a parametric sensitivity study. FEA results, fast motion investigations and stabilization techniques are discussed.

Operated by Universities Research Association, Inc., under Contract No. DE-AC02-76CH03000 with the U. S. Department of Energy#mcgee@fnal.gov