NCSX Web Pages  

Project | Management | Physics | Procurement | Manufacturing

NCSX FTP Sites  

Project FTP Server | Supplier FTP Server

Navigation Trail  

Engineering > Design Review > WBS 133
Review Title Trim Coils PDR
Date 24 March 2008
Cognizant Engineer Mike Kalish
Responsible Line Manager Phil Heitzenroeder
Review Board Chairperson Al von Halle
Review Board Members Raki Ramakrishnan, Jim Chrzanowski, Fred Dahlgren, Ron Hatcher
Invitees Don Rej, Hutch Neilson, Jeff Harris, Jeff Makiel, Jerry Levine, Judy Malsbury, Mike Cole, Mike Williams, Mike Zarnstorff, Wayne Reiersen, Al von Halle, Fred Dahlgren, Mike Kalish, Bob Simmons
Attendees Hutch Neilson, Tom Meighan, Joe Rushinski, Kevin Ranahan, Brent Stratton, Phil Heitzenroeder, Art Brooks, Jeff Makiel, Bob Simmons, Steve Raftopoulos, Jeff Harris, Ron Hatcher, Fred Dahlgren, Jim Chrzanowski, Raki Ramakrishnan, Al vonHalle, Mike Kalish
Charge The charge to the review committee is as follows:

1) Is the Systems Requirements Document adequate and finalized? Are

interfaces defined?

2) Is the design consistent with the requirements?

3) Are the design basis analyses and any supporting R&D documented and


4) Are the drawings and models at the Preliminary Design level?

5) Have chits from the CDR been addressed?

Design Review Material


Chits and Disposition


Review Board Report  
Items Reviewed

Sat Unsat


Appropriate requirements identified GRD/SRD Updates needed (see chits)
Development plans and schedules
Regulatory compliance including USQD and NEPA   Not Covered in this review
Disposition of CHITS from previous reviews Peer review chits
Cost objectives Not covered in this review

Other review objectives addressed

(Attachment 4 of ENG-033)


Summary of Results

The preliminary design of the NCSX trim coils was reviewed.  Preliminary drawings and a draft of the System Requirements Document (SRD) were available, and the optimization/evolution of the design vs. design objectives/margins was presented.  Material specifications (although not complete) and proposed winding schemes were reviewed in the light of system requirements.  The coil mounting structure was reviewed, but material for clamps has not yet been specified, and details for both the coil mounting and coil lead structures need to be further developed.  Preliminary stress analysis for both the coil and mounting structures was presented, which has resulted in the proposed stiffening of the coil corners, and will have to be revisited in stress analysis of the final design configuration.  Coil cooling analysis was reviewed, as well as the resolutions of chits from a previous peer review.

 There were 18 chits recorded during this review, concerning system requirements and interfaces, required analysis, and proposed changes to design details.  The review committee concurred with all chits, and agreed that this review was successful pending resolution of the chits.


(check  one)

 1  Acceptable
  Acceptable pending resolution of concerns - CHITS identified above must be resolved prior to installation.
  1 Incomplete - Additional design work is required prior to another design review.

Cog Engineer Close-out

(check  when done)

 1 Action required by Disposition is complete

Privacy and Security Notice

Please forward comments and questions to the Webmaster