Research for Defect Detection Using Pressing Sound of Vehicle Plate

자동차용 판재의 프레스 가공시 방출되는 음향을 이용한 결함 검출에 관한 연구

  • 하성윤 (동아대 대학원 기계공학과) ;
  • 최환도 (동아대 대학원 기계공학) ;
  • 이대훈 (동아대 대학원 기계공학) ;
  • 전언찬 (동아대 기계ㆍ산업시스템공학) ;
  • 김중완 (동아대 기계ㆍ산업시스템공학부)
  • Published : 2003.06.01

Abstract

In this paper, it is suggested that the technology sound measurement which is to search the inferiority of the plate during the pressing. We evaluate whether there is a inferiority by analysing and comparing the satisfactory and inferior plate with the method of a spectrum analysis by measuring the sound which is emitted during pressing. We designed the analysis algorithm to detect inferior plate throughout comparison of measured sound data using FFT, DFT and DASYLab S/W. In addition to these, we suggest the way to compare both inferior and satisfactory signal statistically.

Keywords