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Architecture & Urban Research Institute

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³í¹®¸í ´Éµ¿Áú·®°¨¼è±â¸¦ ÀÌ¿ëÇÑ 5Ãþ ±¸Á¶¹°ÀÇ ´ÙÁ߸ðµå ½Äº° / The Multi-mode Identification of The 5-Story Structure Using Active Mass Damper / ÀϹݺι®
ÀúÀÚ¸í ÀÌ»óÇö(Lee, Sang-Hyun) ; Àü¹ÎÁØ(Jeon, Min-Jun) ; ¹®´ëÈ£(Mun, Dae-Ho) ; Çã¼®Àç(Heo, Seok-Jae) ; ¹ÚâÀ±(Park, Chang-Yun) ; ¿ì¼º½Ä(Woo, Sung-Sik)½Äº°ÀúÀÚ
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¼ö·Ï»çÇ× ´ëÇѰÇÃàÇÐȸ Çмú¹ßÇ¥´ëȸ ³í¹®Áý, Vol.37 No.2 (2017-10)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(696) ÃÑÆäÀÌÁö(2)
ISSN 2287-5786
ÁÖÁ¦ºÐ·ù ±¸Á¶
ÁÖÁ¦¾î ´Éµ¿Áú·®°¨¼è±â ; ´ÙÁ߸ðµå ; ¸ðµåÇØ¼® ; ½Ã½ºÅÛ ½Äº° ; Active Mass Damper ; AMD ; Modal analysis ; Multi-mode ; System Identification
¿ä¾à1 º» ¿¬±¸¿¡¼­´Â 5Ãþ ±¸Á¶¹°ÀÇ ´ÙÁß ¸ðµå ½Äº°À» ¼öÇàÇÏ¿´´Ù. ½ÇÇè°á°ú ÀÌ ±¸Á¶¹°Àº 3°³ÀÇ ÁÖ¿ä ¸ðµå¸¦ °®´Â´Ù. 1Â÷ ¸ðµå´Â ºñƲ¸² ¸ðµåÀ̰í 2Â÷¿Í 3Â÷ ¸ðµå´Â °¢°¢ y¹æÇâ°ú x¹æÇâÀÇ È¾¹æÇâ Áøµ¿À̾ú´Ù. °¢ ¸ðµåº° °íÀ¯ Áøµ¿¼ö´Â 0.82, 0.834, 0.966 HzÀÌ¸ç ¸ðµåº° °¨¼èºñ´Â °¢°¢ 1.2, 3.1, 3.1%ÀÌ´Ù. ¶ÇÇÑ ¸ðµåÂü¿©Áú·®Àº °¢°¢ 25, 15, 15ÅæÀ¸·Î ½Äº°µÇ¾ú´Ù. ÀϹÝÀûÀ¸·Î 1Â÷¿Í 2Â÷ ¸ðµå´Â ¸Å¿ì À¯»çÇѵ¥, ºñƲ¸²¸ðµå¿Í y¹æÇâ Áøµ¿°ú x¹æÇâ Áøµ¿¿ª½Ã ¼­·ÎÀÇ ÀÀ´ä¿¡ ¿µÇâÀ» ¹ÌÄ£´Ù. ÀÌ·¯ÇÑ °á°ú¸¦ Åä´ë·Î ÇØ´ç ±¸Á¶¹°ÀÇ Àü´ÞÇÔ¼ö¸¦ ±¸ÇÒ ¼ö ÀÖ´Ù.
¿ä¾à2 In this study, the multi-mode identification of the 5-story structure was performed. According to experiments, this structure had 3-mode. The 1st mode was rotational mode, 2nd mode and 3rd mode were translational mode in Y-direction and X-direction, respectively. As a result, natural frequencies of this structure were 0.821Hz, 0.834Hz and 0.966Hz. Modal damping ratios were 1.2%, 3.1% and 3.1%. Modal masses were 25ton, 15ton, 15ton. Unusually natural frequencies of 1st and 2nd modes were very similar, so rotational mode and translational mode in Y-direction interacted. Also 3rd mode interacted with 1st and 2nd mode too. With this result, transfer function of this structure was calculated.
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