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Results of Eddy Current Analysis

Results of Eddy Current Analysis. Of the DCLL TBM June 23, 2005 M. Ulrickson Presented on the TBM Conference Call.

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Results of Eddy Current Analysis

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  1. Results of Eddy Current Analysis Of the DCLL TBM June 23, 2005 M. Ulrickson Presented on the TBM Conference Call Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company,for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000.

  2. Summary • There is a considerable torque about the center of the TBM • There is a large twisting force trying to make a propeller blade • The grids and the back plate have the greatest forces • Forces are in the range of 100-1000 MN

  3. Background Info • Time slice shown is at the time of maximum eddy current (20 ms into a 40 ms linear decay) • The units on the plots are force density (N/mm3) • The force pattern is very complex and must be input into a finite element program to calculate stresses and loads. • A fully time dependent calculation will have to be done eventually.

  4. Fmod Backplate

  5. FX Backplate

  6. Fz Backplate

  7. Fmod Grid

  8. Fx Grid

  9. Fy Grid

  10. Fz Grid (front)

  11. Fz Grid (reverse side)

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