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A Simplified 3-D Calculation Method for Determining Reproductive Efficiency of Film Heads

Junichi KISHIGAMI, Tetsuo MIKAZUKI, Yasuhiro KOSHIMOTO

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Summary :

This paper discusses a simplified three-dimensional (3-D) calculation method based on FEM (Finite Element Method) developed for the analysis of film heads. The calculation derived from the method allows for reproductive efficiency computation on film heads taking a 3-D configuration into consideration. As the calculation uses a two-dimensional (2-D) analysis program substituted for the full 3-D treatment, this program is, therefore, fast enough to be used interactively. The calculated results show that the head efficiency dependences of taper and yoke patterns are significant. The method is suitable for film heads with complicated geometries, because any individual length or pattern dependences can be calculated quite readily.

Publication
IEICE TRANSACTIONS on transactions Vol.E68-E No.9 pp.609-611
Publication Date
1985/09/25
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Category
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