Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Vibration Evaluation and Accuracy Improvement for a Digital Pile Rebounding and Penetration Monitoring System (DPRMS)

디지털 항타관리기(DPRMS)의 진동영향 평가 및 측정 정밀도 향상 방안에 관한 연구

  • 홍정택 (한양대학교 일반대학원 정밀기계공학과) ;
  • 이계영 (삼성물산(주) 건설부문 기술연구소) ;
  • 이상헌 (삼성물산(주) 건설부문 기술연구소) ;
  • 한승수 (삼성물산(주) 건설부문 기술연구소) ;
  • 정진태 (한양대학교 기계공학과)
  • Published : 2006.05.01
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Abstract

In this study, the performance of a digital pile rebounding and penetration monitoring system (DPRMS) is evaluated and the measurement precision of the DPRMS is improved. The DPRMS is a high speed line-scanning camera system to measure the rebound and penetration of a pile in a construction work. A main problem in the DPRMS is a measurement error, which is caused by a shock or vibration due to a hammer impact. The measurement error is investigated by analyzing vibration signals of the DPRMS during the impact. Moreover, the frequency response functions of the DPRMS are also analyzed. As a result, it is found that the tripod height has an influence on the DPRMS performance and a shorter tripod is better. One more founding in this study is that the DPRMS should be placed with a appropriate distance from a pile for improving the measurement precision.

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References

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