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ÀúÀÚ : ³²¸í¿ì, ÀÌ¿µ¼®, ¾ç¿Á·Ä
¹ßÇàÇÐȸ : Çѱ¹»êÇбâ¼úÇÐȸ [The Korea Academia-industrial cooperation Society]
¹ßÇàÁ¤º¸ : Çѱ¹»êÇбâ¼úÇÐȸ³í¹®Áö Á¦ 9±Ç 6È£ pp.1569-1573(5 pages)
¹ßÇà³âµµ : 2008
ÀúÀ۽ñâ : 2008³â
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Abstract
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2. ÇÁ·Î±×·¥ÀÇ ±â´Éµé
3. 3Â÷¿ø ¿µ»ó ó¸® ±â¹ý
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º» ³í¹®Àº ÇÙ¹ßÀü¼Ò Áõ±â¹ß»ý±âÀÇ ÃÊÀ½ÆÄ ºñÆı« °Ë»ç¿ë
ÇÁ·Î±×·¥ °³¹ß¿¡ °üÇÑ °ÍÀÌ´Ù. °³¹ßµÈ ÇÁ·Î±×·¥Àº A, B, C, D ½ºÄµ°ú °°Àº °íÀüÀûÀÎ Çؼ®¹æ¹ý»Ó¸¸ ¾Æ´Ï¶ó 3Â÷¿ø ¿µ»óó¸® ±â¹ýÀ» ÀÌ¿ëÇÏ¿© Áõ±â¹ß»ý±â ³»ºÎ¿¡ ¹ß»ýÇÑ °áÇÔÀ» Çؼ®ÇÏ°í °ËÃâÇÒ ¼ö ÀÖ´Ù. °áÇÔÀÇ 3Â÷¿ø ¿µ»óÀº ÇÙ¹ßÀü¼ÒÀÇ ÆÄÀÌÇÁ¶óÀÎÀ¸·ÎºÎÅÍ ¾ò¾îÁø lÂ÷¿ø ÃÊÀ½ÆÄ µ¥ÀÌÅ͸¦ EMD(Empirical Mode Decomposition)·Î ºÐ¼®ÇØ °áÇÔÀÇ À§Ä¡¸¦ ±¸ÇÏ°í voxelÀ» ÀÌ¿ëÇÏ¿© ±¸ÇöÇÏ¿´´Ù. ¾ò¾îÁø 3Â÷¿ø ¿µ»óÀº 2Â÷¿ø Çؼ®¹æ¹ýÀ» »ç¿ëÇÏÁö ¾Ê´õ¶óµµ °áÇÔÀÇ À§Ä¡, ÇüÅÂ, Å©±â µî°ú °°Àº À¯¿ëÇÑ Á¤º¸¸¦ ¾ò´Âµ¥ ¿ëÀÌÇÏ´Ù. °³¹ßµÈ ÇÁ·Î±×·¥Àº ÀÌ¹Ì °áÇÔÀÇ À§Ä¡ ¹× ¸ð¾ç, Å©±â µîÀ» ¾Ë°í ÀÖ´Â ½ÃÆíÀÇ ÃøÁ¤¿¡ »ç¿ëÇÏ¿© ÇÁ·Î±×·¥ÀÇ Á¤È®¼ºÀ» °ËÁõÇÏ¿´°í, 3Â÷¿ø ¿µ»óÀ¸·Î °áÇÔÀÇ ÀÔüÀû ¸ð¾çÀ» ±¸ÇöÇÏ¿´´Ù.
This paper describes a develo
pment of Ultrasonic NDE software to analyze steam generator of nuclear power plant. The developed software includes classical analysis method such as A, B, C and D-scan images. And it can analyze the detected internal cracks using 3D image processing method. To do such, we obtain raw data from specimens of real pipeline of power plants, and get the envelope signal using Empirical Mode Decomposition from obtained ultrasonic I-dimensional data. The reconstructed 3D crack images offer useful information about the location, shape and size of cracks, even if there is no special 2D image analysis technique. The developed analysis software is applied to specimens containing various cracks with known dimensions. The results of application showed that the developed software provided accurate and enhanced 2D images and reconstructed 3D image of cracks. (ÀÌÇÏ »ý·«)
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