From:	Lawrence E. Dudek
Sent:	Monday, June 13, 2011 3:13 PM
To:	NSTX Center Stack Upgrade Team
Cc:	Tiana Dodson
Subject:	Notes from 6/8/2011 NSTX CSU Meeting
Attachments:	Calc_Status_06082011A.xlsx; ATT7479815.htm

Notes from 6/8/2011 Meeting:
Disruption Calcs for NSTXU Passive Plates (Zhai/Titus)
 (see VGs)
Detailed 3d Opera modeling of the passive plates continues. The latest analysis using a P1 to P5 
VDE Fast Disruption indicates stresses in the passive plate should be manageable. The next step 
is to change analysis input conditions need to P1 to P4 Slow Disruption to verify earlier analysis 
that indicated a stress problem in the secondary passive plates.


G10 Crown to Lid Connection Analysis  (Zolfighari) (see VGs)
Detailed ANSYS analysis on the upper G10 to lid connection indicates bolts will need to be 
increased slightly to 7/8" from 3/4" and the friction between the G10 and lid will need to be 0.4 
to maintain joint tightness.  This will require a high friction coating to reliably achieve the 
required coefficient.



http://nstx-upgrade.pppl.gov/Project_Meetings/CenterStackUpgrade/index_Meetings.htm