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BORE |
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BORE |
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»Click here to display Table of Contents«
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BORE |
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BORE |
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Bulk Data Entry
BORE – Bored Deformation
Description
Defines the surface, coordinate system, and parameters required to request Bore Deformation output for Static Analysis Subcases.
Format
(1) |
(2) |
(3) |
(4) |
(5) |
(6) |
(7) |
(8) |
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BORE |
BID |
CID |
USID |
ORDER |
MIDPNT |
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Field |
Contents |
BID |
Bore identification number. No default (Integer > 0) |
CID |
Identification number of a user-defined Cylindrical Coordinate System with the Z-axis aligned with the central axis of the Bore. No default (Integer > 0) |
USID |
Identification number of a Bore Surface (SURF bulk data entry) which defines the internal surface of the Bore. No default (Integer > 0) |
ORDER |
Defines the order of the Fourier series until which the Bore distortion is calculated. No default (100 > Integer > 0) |
MIDPNT |
Controls the inclusion of mid-nodes of second order elements on the bore surface. YES: The mid-nodes of second order elements on the Bore surface are included. NO: The mid-nodes of second order elements are not included. Only the corner nodes are used. Default=NO (YES or NO) |
| 1. | The BORE Bulk Data Entry determines the various orders of Bore Distortion from Displacement results associated with the grid points of the Bore surface. The Distortion Orders are determined by representing the Bore Deformation profile by means of a Fourier series and evaluating the Fourier series using the Fast Fourier Transform (FFT). |
Where,
RL is the Bore Deformation of the Layer L until the order N (defined via ORDER field).
is the Polar angle
Ak and Bk are the Fournier series coefficients of the k' th order
is the zero order deformation
Mk is the magnitude of the k' th order deformation
| 2. | If BORE Bulk Data Entries are present in the input deck, two output files, <filename>_bdst.mvw and <filename>.bdst are generated. The magnitude of bore distortion for each order is plotted vs the depth of the Bore (Z-depth), where Bore Deformation is calculated (Layer L). |
| 3. | Bore deformation output is currently only available for Static Subcases. |
