한국방재안전학회논문집 (Journal of Korean Society of Disaster and Security)

  • 제16권3호
  • /
  • Pages.45-56
  • /
  • 2023
  • /
  • 2466-1147(pISSN)
  • /
  • 2508-285X(eISSN)
한국방재안전학회 (Korean Society of Disaster & Security)
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능동소음제어 기술을 이용한 층간소음 저감효과 분석

Analysis of Reduction Effect of Inter-Floor Noise Using Active Noise Control (ANC) Technique

  • 김호진 ((주)에이테크솔루션) ;
  • 김중관 (한서대학교 무인항공기학과) ;
  • 김준환 ((주)크리에이티브솔루션 기술연구소) ;
  • 김현석 ((주)에이알이) ;
  • 위혁 ((주)에이알이 기술연구소)
  • 투고 : 2023.08.10
  • 심사 : 2023.08.14
  • 발행 : 2023.09.30
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초록

본 연구에서는 능동소음제어(ANC) 기술을 층간소음 분야에 적용하기 위하여 40~500 Hz 대역의 중량충격음을 제어하기 위한 ANC 시스템을 구성하였다. ANC 시스템에는 Fx-LMS 알고리즘 기반의 적응형 필터를 활용한 피드포워드 방식의 제어기술을 도입하였다. ANC 시스템 설정을 위해 가상 시뮬레이션을 통해 ANC를 구성하는 변수 연구를 실시하였고, 이를 통해 최적 필터와 시스템 배치 방법을 정립하였다. 또한 본 연구에는 개발된 ANC 시스템을 한국건설생활시험연구원(KCL)의 층간소음 시험실에 설치한 후 표준시험방법에 따라 ANC 시스템 구동 전후 4 dB의 층간소음 저감효과를 확인하였다. 시험결과를 통해 본 연구에서 개발한 ANC 시스템이 중량충격음에 대한 등급 기준을 한 단계를 상향시킬 수 있는 수준의 효과가 있음을 확인하였다.

In this study, the application of ANC (Active Noise Control) technology to address inter-floor noise was explored. To achieve this, an ANC system was developed to manage the heavy impact sound within the frequency range of 40 to 500 Hz. The ANC system utilized an adaptive filter employing a feedforward approach based on the Fx-LMS algorithm. To set up the ANC system, a comprehensive analysis of various variables within the system was performed using computational simulations. This process enabled the identification of optimal filter settings and system configuration arrangements. In addition, the ANC system was implemented in the inter-floor noise test room at the Korea Conformity Laboratories (KCL). Through a certified standard testing procedure, it was confirmed that the ANC system led to a 4 dB reduction in inter-floor noise when the system was activated compared to when it was turned off. The results of this study indicate that the developed ANC system has an effect significant enough to elevate the rating criteria by one level for heavy impact sound.

키워드

과제정보

This work was supported by the Commercialization Support Program of Land, Infrastructure and Transport Technology of the Korea Agency for Infrastructure Technology Advancement (KAIA), granted financial resource from the Ministry of Land, Infrastructure and Transport Korea (No. 21TBIP-C161155-01).

참고문헌

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