한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제17권6호
  • /
  • Pages.7-15
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  • 2018
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  • 1598-6721(pISSN)
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  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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냉장고 동작부품의 소음특성 분석을 통한 감성품질 개선

Evaluation of Sound Quality for Ergonomic Design of Movable Parts in a Refrigerator

  • 강성엽 (부산대학교 기계공학부 대학원) ;
  • 소새롬 (부산대학교 기계공학부 대학원) ;
  • 김건우 (부산대학교 기계공학부 대학원) ;
  • 김지훈 (부산대학교 기계공학부 정밀정형 및 금형가공 연구소) ;
  • 박상후 (부산대학교 기계공학부 정밀정형 및 금형가공 연구소)
  • Kang, Seong Yeop (Graduate School of Mechanical Engineering, Pusan National University) ;
  • So, Sae Rom (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Kim, Gun Ou (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Kim, Ji Hoon (School of Mechanical Engineering, ERC/NSDM, Pusan National University) ;
  • Park, Sang Hu (School of Mechanical Engineering, ERC/NSDM, Pusan National University)
  • 투고 : 2018.07.30
  • 심사 : 2018.08.21
  • 발행 : 2018.12.31
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초록

We propose a method for evaluating sound quality quantitatively to develop high-level home appliances (HA). Generally, a refrigerator has diverse movable parts such as slider, drawer, and folding shelf. Therefore, an engineering treatment to control the noise quality is considered as one of key technologies for a higher level refrigerator. Among the movable parts, we have selected a folding shelf as an example, which is commonly setup inside of a home refrigerator for increasing space convenience, to control the noise quality. However, it is known that its noise level is very high comparing to other movable parts when folding or unfolding actions. In order to evaluate and compare the noise quality, we have tested different eighteen models, and have suggested an impact sound quality index (ISQI) based on subjective evaluation data obtained experimentally by thirty two evaluators. The ISQI was formulated using three sound quality elements (noise peak, raising time, impact duration) to determine psycho-acoustic properties. Through this work, we developed an evaluating process and ISQI that was verified the usefulness by comparing the test results of personal perceptions given by evaluators with the prediction value of ISQI. We showed a good relations between them, so we believe that the proposed method and ISQI can be utilized to control of the noise quality of HA effectively.

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참고문헌

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