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Çѱ¹Áö¹Ý°øÇÐȸ / v.10, no.4, 1994³â, pp.103-118
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±Þ¼Ó¿îµ¿À» ÇÏ´Â ÀÔÀÚ¹°ÁúÀÇ µ¿Àû°Åµ¿
( Dynamic Behaviour of Granular Meterial during the Rapid Motion ) |
| ȲÇÐ; Á¤È¸¿ø, ´ë¸²»ê¾÷ ¼ÇØ´ë±³ Áö¿øÆÀ;
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| ÀÔÀÚ¹°ÁúÀÇ ºü¸¥ ¿òÁ÷ÀÓÀ» ¹Ì½ÃÀûÀ¸·Î °üÂûÇϰí À̸¦ ¿¬¼ÓüÀ̷п¡ Àû¿ëÇÏ¿´´Ù. µÎ ÀÔÀÚÀÇ »óÈ£Ãæµ¹Çö»ó¿¡¼ µÎ Á¾·ùÀÇ ½Ã°£ Áï ¹ÌÇà½Ã°£°ú Á¢Ã˽ð£À» ³ª´©¾ú´Ù. ÀüÀÚ´Â ½Ã°£¿¡ µû¶ó º¯ÇÏ´Â ¿òÁ÷ÀÓ°ú üÀûÀÇ º¯È¸¦ ³ªÅ¸³»¸ç, ÈÄÀÚ´Â µÎ ÀÔÀÚ°¡ Á¢Ã˽ÿ¡ °É¸° ½Ã°£À» ¶æÇϸç ÀÌ Å©±â´Â ÀÔÀÚÀÇ Åº¼º¼ºÁúÀ» ³ªÅ¸³½´Ù. ÀÌ·¯ÇÑ µÎ Á¾·ùÀÇ ½Ã°£À» ÀÌ¿ëÇÏ¿© 4°³ÀÇ »óꝼö Áï ¾ÐÃàÀÀ·Â, Á¡¼º, ¿¡³ÊÁöÀü´Þ·ü ±×¸®°í ¿¡³ÊÁö¼Õ½Ç·ü·Î¼ µ¿·ÂÇÐÀû ±¸Á¶°Åµ¿½ÄÀ» ¼¼¿ü´Ù. ¿¬¼ÓüÀÌ·ÐÀÇ Áú·®, ¿îµ¿·® ¹× ¿¡³ÊÁö¹æÁ¤½ÄÀ» À§ÀÇ »óꝼö·Î¼ Ç¥±âÇϰí À̸¦ ´Ù½Ã µÎ °¡ÁöÀÇ ¸ðµ¨¿¡ Àû¿ëÇÑ °á°ú ź¼º¼ºÁú·Î ÀÎÇÑ ÀÌ¿Ï ¹× ¿¡³ÊÁö Èí¼öÇö»óÀÌ ³ªÅ¸³µ´Ù. |
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| The rapid motion of granular material is microscopically observed, and investigated by continuum theory. From the binary collision phenomenon two different times are introduced : flying time and contact time. The former says the non -stationary motion and at a same time the variation of bulk volume. The latter is operative by a delayed time during the contact and describes the elastic properties of granular material. With both times a dynamic constitutive equation is postulated for four state variables : dispersive pressure, viscosity, thermal diffusivity and energy annihilation rate. The balance laws of mass, momentum and energy which are represented through above four variabls, are applied to the model, in which due to the elastic property the relaxation and energy absorption are explained. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.10, no.4, 1994³â, pp.103-118
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411920445741)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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