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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.14, no.3, 2005³â, pp.166-173
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Á¦ÁÖÁö¿ª °¨±ÖÀç¹è¿ë ´ÜÀÏÇǺ¹ ¹«°¡¿ÂÇϿ콺ÀÇ ±¸Á¶¾ÈÀü¼º ºÐ¼®
( Analysis of the Structural Safety in a Non-heating Greenhouse with a Single Cover for Citrus Cultivation in Jeju ) |
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| ±æÀÌ 40m,Æø 5.5mÀÇ ´ÜÀÏÇǺ¹ ±¸Á¶ÀÇ 8¿¬µ¿ ¹«°¡¿ÂÇϿ콺 »ó´ÜºÎ¿¡ ¼³°èÀû¼³½É 19.1 cmÀÇ ´«ÀÌ ½×Àδٴ Á¶°Ç°ú ½Ã¼³ Ãø¸éÀ¸·Î ¼³°èdz¼Ó $36.6;m{cdot}s^{-1}$ÀÇ ¹Ù¶÷ÀÌ ºÐ´Ù´Â Á¶°Ç ±×¸®°í Âü°íÀÚ·á·Î Ȱ¿ëÇϱâ À§ÇØ Àû¿ëÇÑ ÃÖ´ëÀû¼³½É 37.8cmÀÇ ´«ÀÌ ½×Àδٴ Á¶°Ç°ú ¼ø°£ÃÖ´ëdz¼Ó $60.0;m{cdot}s^{-1}$ÀÇ °Ç³ÀÌ ºÐ´Ù´Â Á¶°Ç¿¡¼ À¯µ¿ ¹× ±¸Á¶°µµ ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. Àû¼³ÇÏÁß Á¶°Ç¿¡¼´Â ¼³°èÀû¼³½É 19.1 cm¿Í ÃÖ´ëÀû¼³½É 37.8cm¿¡¼ ÆÄÀÌÇÁ¿¡ °É¸®´Â ÃÖ´ëÀÀ·ÂÀÌ °¢°¢ $53.8;N{cdot}mm^{-2}$°ú $107;N{cdot}mm^{-2}$À¸·Î Àç·áÀÇ Çã¿ëÀÀ·Â º¸´Ù ÀÛÀº °ÍÀ¸·Î ³ªÅ¸³ª ¾ÈÀüÇÑ °ÍÀ¸·Î ºÐ¼®µÇ¾úÀ¸³ª, ¼³°èdz¼Ó $36.6;m{cdot}s^{-1}$¿Í ¼ø°£ÃÖ´ëdz¼Ó $60.0;m{cdot}s^{-1}$ÀÇ Ç³ÇÏÁß Á¶°Ç¿¡¼´Â ÆÄÀÌÇÁ¿¡ °É¸®´Â ÃÖ´ëÀÀ·ÂÀÌ °¢°¢ $250;N{cdot}mm^{-2}$°ú $672;N{cdot}mm^{-2}$À¸·Î Àç·áÀÇ Çã¿ëÀÀ·ÂÀ» ¸ðµÎ ÃʰúÇÏ¿© ÇÃ¶ó½ºÆ½ÇϿ콺°¡ ºÒ¾ÈÀüÇÑ °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. |
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| This study was carried out to evaluate the structural stability in a non-heating greenhouse with a single cover for Citrus cultivation which was built up in Jeju on the basis of the drawing designed by Jejudo Agricultural Research & Extension Services and also to make use of the data for developing a standardized non-heating greenhouse in Jeju. The analysis of a structural stability was conducted by using CFX-5.7 and ANSYS under the design condition of a maximum accumulated snow-depth of 19.1 cm as well as an instantaneous maximum wind velocity of $36.6;m{cdot}s^{-1}$ which was set up on the basis of meteorological statistics in Jeju. As a result, the maximum von-Mises stress applied on pipes under the wind velocity of $36.6;m{cdot}s^{-1}$ showed a value of $250;N{cdot}mm^{-2}$ which was greater than the allowable stress of the pipe with a value of $235.4;N{cdot}mm^{-2}$ (=$2,400;kg{cdot}cm^{-2}$) and also $53.8;N{cdot}mm^{-2}$ under the snow-depth of 19.1 cm, respectively. This result suggested that the greenhouse be unstable under the design condition of an instantaneous wind velocity of $36.6;m{cdot}s^{-1}$ so that it was necessary for the greenhouse to be reinforced to secure the structural stability. |
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| Ű¿öµå |
| À¯Ã¼-±¸Á¶;ÃÖ´ëÀÀ·Â;ANSYS;CFD;CFX;Fluid-structure;Maximum stress; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.14, no.3, 2005³â, pp.166-173
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200504840787829)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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