FIELDS OF RESEARCH
²÷ÀÓ¾ø´Â ¿¬±¸¿Í ±â¼ú °æÀï·ÂÀ¸·Î Áø´Ü ¼Ö·ç¼ÇÀÇ »õ·Î¿î ±âÁØÀ» Á¦½ÃÇÕ´Ï´Ù.
¼³ºñ Áø´Ü ¼Ö·ç¼Ç
Á¤¹Ð Áøµ¿ ºÐ¼® (Vibration Analysis)
Á֯ļöºÐ¼®¹ý
Frequency Analysis
Áøµ¿°ú ¼ÒÀ½ÀÇ ÆÄÇü(Waveform)À̳ª Á֯ļö(Frequency) ¹× À§»ó(Phase) ½ÅÈ£¸¦ Ãëµæ, ȸÀüÂ÷¼ö(Order)ºÐ¼®, °øÁøºÐ¼® µî ¹æ¹ýÀ» ÅëÇØ Áøµ¿Çö»ó¿¡ ´ëÇÑ Æ¯Â¡À» ÆÄ¾ÇÇÏ¿© ȸÀü±â°è, ±¸Á¶, °Ç¹°, ½Ç³»ÀÇ ÀÌ»ó »óÅ ¹ß»ý¿øÀÎ ±Ô¸í°ú ´ëÃ¥¿¡ Ȱ¿ëÇÏ´Â ºñÆÄ±«ºÐ¼®¹ý.
°Åµ¿ºÐ¼®¹ý
ODS (Operational Deflection Shape)
¿îÀü Áß º¯ÇüÇü»ó(ODS) À̶õ?
ʻƯÁ¤ÇÑ ¿îÀüÁ¶°Ç ÇÏ¿¡¼­ ƯÁ¤ÇÑ Á֯ļö¿¡¼­ÀÇ ±¸Á¶¹°ÀÇ º¯ÇüÇü»ó¡¯
±â°è±¸Á¶¹°ÀÌ ±¸µ¿µÉ ¶§ ±× º¯ÇüÇü»óÀº ½Ã½ºÅÛÀÇ °íÀ¯¼ºÁú»Ó¸¸ ¾Æ´Ï¶ó °¡Áø Á¶°Ç¿¡ ÀÇÇØ¼­µµ ´Þ¶óÁø´Ù.
½ÇÁ¦ ±¸µ¿µÇ°í ÀÖ´Â ±¸Á¶¹°ÀÇ ¼ÒÀ½ ¹× Áøµ¿¹®Á¦¿¡ ´ëÇÑ ´ëÃ¥ ¼ö¸³ ½Ã
±â°è±¸Á¶¹°¿¡¼­ ¹ß»ýÇÏ´Â µ¿ÀûÀÎ ¹®Á¦µé, Áï ¼ÒÀ½ ¹× Áøµ¿, ÇÇ·Î, ¸¶¸ð µîÀ» ÃÖ¼ÒÈ­Çϱâ À§ÇÑ ÃÖÀûÀÇ ±¸Á¶ º¯°æÀ§Ä¡¿¡ ´ëÇÑ Á¤º¸¸¦ Á¦°ø
Visual & Actual & Easy
°øÁøºÐ¼®-Modal Test
Natural frequency, Mode
Impact hammer (force sensor)¸¦ ÀÌ¿ëÇÏ¿© ÀԷ½ÅÈ£¸¦ ÁÖ°í Accelerometer(Áøµ¿¼¾¼­)¸¦ ÀÌ¿ëÇÏ¿©
Ãâ·Â(Frequency Response Function; FRF)À» ¾ò´Â ½ÃÇè
[½ÃÇè ¹æ¹ý]
½ÃÇèüÀÇ ±¸Á¶°¡ Èçµé¸± Á¤µµÀÇ °¡ÁøÀ» ÁÖµÇ tipÀ» º¯µ¿ ÀÌ¿ëÇÏ¿© ÇØ´ç °íÀ¯Á֯ļö¸¦ ÃëµæÇϵµ·Ï °¡ÁøÇÑ´Ù.
°¡ÁøµÇ´Â ÇØ¸Ó(Èû¼¾¼­)´Â °¡°ÝºÎºÐÀÎ ³¡ºÎºÐ(tip)ÀÌ ´ëü·Î ¹«¸¥ ÀçÁúÀÌ¸ç ´ë»ó¹°¿¡ ÃÖ´ë 50cmÀ̳»¿¡¼­ °¡°ÝÇÏ¸ç ´ë»ó¹°¿¡ ¼Õ»óÀÌ ¾ø´Ù.
(´ë»ó¹°¿¡ ¼Õ»óÀ» ÁÙ Á¤µµ·Î °¡°ÝÇϸé Èû¼¾¼­°¡ ¼Õ»óµÈ´Ù.)
ÃÊÀ½ÆÄ À½Çâ¹æÃâ/¼ÒÀ½ ºÐ¼®
Ultrasonic , Acoustic emission, failure analysis
±¸Á¶¿¹ÃøÇؼ®-CAE(Computer Aided Engineering)
FEM À¯ÇÑ¿ä¼ÒÇØ¼®À» ÅëÇÑ ÄÄÇ»ÅÍ ½Ã¹Ä·¹ÀÌ¼Ç ÇØ¼®
¹°Ã¼ÀÇ ½ÇÁ¦·Î ÃøÁ¤µÈ ½ÇÃø°ªÀ» ÀÌ¿ëÇÏ¿© ÇÊ¿äÇÒ °æ¿ì, FEM ÀÀ´äÇØ¼®¿¡ Àû¿ëÇÏ¿© ÀÀ´äÀ» ¿¹ÃøÇϰí À̸¦ ÀÌ¿ëÇÏ¿© ±¸Á¶¹°ÀÇ º¯Çü ÈÄ ¹°¼ºÄ¡¸¦ ¹Ì¸® ¼³°è ÇÒ ¼ö ÀÖ½À´Ï´Ù.
A. ±×¸²°ú °°ÀÌ ¼¾¼­¿¡ ÀÇÇØ ¸ð´ÏÅ͸µµÈ µ¥ÀÌÅ͸¦ FEM¸ðµ¨¿¡ Àû¿ëÇϸé ÇöÀç ±¸Á¶¹°ÀÇ °Åµ¿À» »ìÆìº¼ ¼ö ÀÖÀ¸¸ç, À§ °á°ú¿¡ µû¸¥ Æò°¡¿¡ µû¶ó ¾ÈÀü¹üÀ§ ¼³Á¤°ú º¸¼öÁöÁ¡°ú ½ÃÁ¡À» ¼³Á¤ÇÒ ¼ö ÀÖ½À´Ï´Ù.
B. ±×¸²°ú °°Àº ¸ðµ¨Çؼ®Àº dz¾ÐÀ̳ª ƯÁ¤ ÁöÁ¡¿¡¼­ Àü´ÞµÇ´Â ¿Ü·Â¿¡ ´ëÇÑ ÀÀ·ÂÇØ¼®¿¡ ´ëÇÑ °á°úÀÌ¸ç Æò°¡¾ÈÀü±âÁØ¿¡ ´ëÇÑ ¹üÀ§ ¼³Á¤°í·Á½Ã ºñ±³ÀÚ·á·Î ¾²ÀÏ ¼ö ÀÖ½À´Ï´Ù.