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Architecture & Urban Research Institute

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³í¹®¸í Á¤Àû¸ðµ¨±â¹ÝÀÇ µ¥ÀÌÅÍ È®Àå ¹× ÆÄ¶ó¹ÌÅÍÇà·ÄÀÇ °»½Å / Static Model-Based Data Expansion and Update of Parameter Matrix
ÀúÀÚ¸í ¼ÛÁØÇõ(Song, Jun-Hyeok) ; ÀºÈñâ(Eun, Hee-Chang)
¹ßÇà»ç ´ëÇѰÇÃàÇÐȸ
¼ö·Ï»çÇ× ´ëÇѰÇÃàÇÐȸ³í¹®Áý, Vol.39 No.1 (2023-01)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(241) ÃÑÆäÀÌÁö(8)
ISSN 2733-6247
ÁÖÁ¦ºÐ·ù ±¸Á¶ / Àç·á
ÁÖÁ¦¾î °­¼ºÇà·ÄÀÇ °»½Å; µ¥ÀÌÅÍ È®Àå; ȸÀü°¢; °èÃø; ÀϹÝÈ­µÈ ¿ªÇà·Ä ; update of stiffness matrix; data expansion; rotation; measurement; generalized inverse matrix
¿ä¾à1 ÀÌ ¿¬±¸¿¡¼­´Â °èÃøµÈ µ¥ÀÌÅ͸¦ »ç¿ëÇÏ¿© À¯ÇÑ¿ä¼ÒÇØ¼®¸ðµ¨ ±â¹ÝÀÇ °­¼ºÇà·ÄÀ» °»½ÅÇϰí, ¸ðµç ÀýÁ¡¿¡¼­ÀÇ º¯À§ÀÀ´äÀ» È®ÀåÇÏ´Â ¹æ¹ýÀ» À¯µµÇÑ´Ù. ÃøÁ¤µÈ µ¥ÀÌÅ͸¦ ±¸¼ÓÁ¶°ÇÀ¸·Î »ç¿ëÇϰí ÀÌ·ÐÀûÀÎ °­¼ºÇà·Ä°ú ½ÇÁ¦ °­¼ºÇà·ÄÀÇ Â÷ÀÌ¿¡ °üÇØ ÃÖ¼ÒÀڽ¹ýÀ» »ç¿ëÇÏ¿© °­¼ºÇà·ÄÀ» ÃßÁ¤ÇÏ´Â ¼ö½ÄÀ» À¯µµÇÑ´Ù. È®ÀåµÇ´Â º¯À§ÀÀ´äÀº ȸÀü°¢ µîÀ» Æ÷ÇÔÇÏ°Ô µÈ´Ù. Á¦¾ÈµÈ ¹æ¹ý¿¡ ´ëÇØ ÈÚºÎÀçÀÎ º¸¿Í Æ®·¯½º ±¸Á¶¹°¿¡¼­ °­¼ºÇà·Ä°ú µ¥ÀÌÅ͸¦ È®ÀåÇÏ´Â ¿¹Á¦µéÀ» ÅëÇØ Á¦¾ÈµÈ ¹æ¹ýÀÇ Å¸´ç¼ºÀ» °ËÁõÇÏ°í ºÐ¼®ÇÑ´Ù.
¿ä¾à2 The purpose of this study is to present a method of updating the model-based stiffness matrix using the measured data in static system and
expanding to the displacements at all degrees of freedom. Using the measured data set as a constraint, the mathematical form of the updated
stiffness matrix is derived using the least squares method to minimize the difference between the analytical and actual stiffness matrices. The
expanded displacement responses include the rotation responses. The validity of the proposed method is illustrated in two numerical examples
to update the stiffness matrix and expand the displacements of a cantilevered beam and a truss structure.
¼ÒÀåó ´ëÇѰÇÃàÇÐȸ
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DOI https://doi.org/10.5659/JAIK.2023.39.1.239
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