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타워형 에어컨 송풍기 소음의 능동제어

Active Control of Noise from Fan Blowers in Tower-type Air Conditioners

  • Ryu, Kyungwan (School of Mechanical Engineering, Graduate School of Pusan National University) ;
  • Hong, Chinsuk (School of Mechanical Engineering, Ulsan College) ;
  • Jeong, Wei Bong (School of Mechanical Engineering, Pusan National University)
  • 투고 : 2016.10.27
  • 심사 : 2016.12.19
  • 발행 : 2017.02.20

초록

This paper investigates active noise control of tower-type air conditioners using the filtered-x least mean square (FXLMS) algorithm to reduce fan blower noise transmission. Firstly, the main components required for the active control system including the error sensor, the control speaker and the reference sensors are selected. Since the noise could significantly reduce if the reference signal includes every frequency response information, a various reference signals from accelerometers and a microphone are used. Secondly, the controller based on the FXLMS algorithm with a single-channel reference signal is implemented. Then, the control performance is examined experimentally for the different reference signals. It is found that the accelerometer signal well possesses the motor vibration related noise and a microphone signal could includes global noise. When using the reference signal with a microphone located near the motor and the fan blower, the active control system reduces the noise globally, except for several peaks.

키워드

참고문헌

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