• 제목/요약/키워드: Sound insulation performance

검색결과 244건 처리시간 0.027초

발포 알루미늄 샌드위치 패널의 차음성능 (Sound Insulation Performance of the Foamed Aluminum Sandwich Panel for a Railway Vehicle)

  • 안용찬;이중혁;변준호;김석현
    • 산업기술연구
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    • 제37권1호
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    • pp.1-4
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    • 2017
  • Speeding up of railway vehicles requires weight reduction of the vehicle body. However, when the vehicle body is lighter, the sound insulation performance for blocking the noise from the outside is reduced. Aluminum is an important material used in the bodywork of transportation vehicles such as railway vehicles, aircraft, and automobiles. In this study, the bending stiffness and sound insulation performance of foamed aluminum with sandwich structure are investigated experimentally. The transmission loss is measured in accordance with the international standard ASTM E 2249-02. The mass-law deviation is used to evaluate the sound insulation performance per weight. In order to examine the applicability of the foamed aluminum sandwich panel to railway vehicles, the analysis of bending stiffness and an experimental review are carried out at the same time.

고무칩을 이용한 공동주택 바닥구조의 차음성능 향상에 관한 연구 (A Study on the Sound Insulation Performance Elevation of Floor Structure that use Rubber chip in Apartment House)

  • 박명길;함진식
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2002년도 추계학술발표대회
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    • pp.237-332
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    • 2002
  • We constructed ceiling structure and floor structure for elevation of sound insulation performance of concrete slab of apartment house. And, we wished to measure heavy floor impact sound level and light floor impact sound level of these structure. As the result, light floor impact sound level interception performance of concrete slab was measured by thing that construction work of gypsum baud is important. Heavy floor impact sound level interception performance was measured by thing that it is effective that construct to thickness about 30 millimeters on concrete Slav. It was measured effectively that heavy floor impact sound level interception performance constructs rubber chip to thickness about 30 millimeters on concrete Slav.

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바닥마감재에 의한 바닥충격음 차음특성 연구 (A Study on the Floor Impact Sound Insulation Characteristics of Floor Coverings)

  • 기노갑;권현종;송민정;김선우
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 추계학술대회논문집
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    • pp.682-686
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    • 2002
  • It is increasing the interest on the comfortable dwelling environment, while sound Insulation performance of materials and elements used in building is falling down as they become thicker and lighter. Therefore, sound insulation performance in building has become the most important factor determining the level of housing, especially for apartment that has common wall and floor with next neighbors. This paper aims to experiment the sound insulation characteristics of floor coverings as their types and to analyse their noise reduction effect.

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철골조 공동주택의 차음성능 실태조사에 관한 연구 (I) (A Study on the Sound Insulation Performance of Steel-Structured Apartment Buildings (I))

  • 차상곤;이상우;정병욱;정대업;이수열
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2000년도 춘계학술대회논문집
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    • pp.151-156
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    • 2000
  • The sound insulation performance of walls and floors for air-borne and structure-borne sounds in an apartment building is an important environmental factor which should be contemplated at the intial design stage for their thorough control. Recent increasing residents' demands for quality living spaces strongly urge the development of more accurate and efficient measurement and evaluation methods for the control of air-borne and structure-borne sound insulation. However, steel-structured apartment buildings, recently emerged as new building structures in the market, have not been thoroughly examined. The present work carried out an extensive survey for steel-structured apartment buildings, in an attempt to provide useful design data, and their sound insulation performances were compared with those of R.C. apartment buildings.

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현장(現場) 청감실험(聽感實驗)에 의한 바닥충격음(衝擊音) 차음성능(遮音性能) 평가(評價) (The Evaluation of Floor Impact Sound Insulation in Apartment House by Psycho-acoustic Method)

  • 기노갑;장길수;송민정;김준엽;김선우
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2000년도 춘계학술대회논문집
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    • pp.1741-1746
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    • 2000
  • Recently the impact sound insulation performance is regarded as one of the most important factor in determining the quality of apartment house. So many studies were carried out to improve these performance and to propose an appropriate evaluation method and standard of floor impact sound insulation for apartment house by psycho-acoustic method in the laboratory. This study was carried out the field psycho-acoustic test to find a correlation between physically measured values and psychological response in apartment house, and the results will be used to establish the appropriate evaluation method and standard of floor impact sound insulation.

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유니텍스 구조의 차음성능 향상기술 개발 (Development of Improvement Technology of Sound Insulation Performance of Unitex Structure)

  • 변준호;이중혁;김석현;이재준;기호철
    • 대한기계학회논문집 C: 기술과 교육
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    • 제4권2호
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    • pp.123-130
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    • 2016
  • 유니텍스는 높은 강도과 우수한 단열성, 긴 수명 및 간편한 시공에 따른 저렴한 제작비 때문에 대부분의 도시철도 차량의 바닥 구조로 널리 사용되고 있다. 그러나 여러 가지 우수성에도 불구하고, 이 구조는 차량 적층재에서 중요한 차음성능 측면에서는 여전히 문제점을 갖고 있다. 기존 제품은 중량대비 차음성능의 척도인 질량법칙 투과손실치에 비해 현저히 낮은 투과손실을 보인다. 최근 차량 제작사와 시공사는 차음성능을 높이기 위하여 많은 노력을 시도하여왔으나 큰 효과가 없었다. 이에 본 산학협동 연구에서는 기존 제품 대비 5dB 이상 차음성능을 향상시키는 것을 목표로, 적층재의 구조개선 방안을 도출하고 개선효과를 실험적으로 검증한다.

다중판넬의 차음설계차트 (Design chart of sound insulation for multiple panels)

  • 강현주;김봉기;김상렬
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2006년도 추계학술대회논문집
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    • pp.946-949
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    • 2006
  • This study is a trial to make a design chart of sound insulation for multiple panel. Dilatational frequency, ${\Large f}_d$ becomes a key factor for optimal design since it acts like a turning point in sound insulation performance of such panels. Hence, in tuning the ${\Large f}_d$ optimally, elastic modulus of core material and thickness of the skin panel is designated to parameters. Based on these parameter, a design chart of sound insulation for multiple panel is made. Its applicability is proved by the case study of High noise reduction panel.

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공항 인근 건물(호텔)에서의 벽체구조의 차음성능에 관한 연구 (An experimental study on sound insulation of building elements of the hotel near airport)

  • 이성호;정갑철;양관섭
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 춘계학술대회논문집
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    • pp.579-585
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    • 2002
  • This study has measured and evaluated the sound insulation of building elements of the hotel near airport. That measurement was made in both the actual site and laboratory. The differences of sound insulation performance in between granite and double glass were measured. Moreover, the difference of sound insulation was analyzed. For the measurement, this study has tried several methodologies, and analyzed the differences respectively. The results from this analysis were applied to produce a design guides for sound insulation to prevent external noise and to make more silent indoor space which satisfied the standard rate of noise.

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경량콘크리트 패널의 차음성능에 관한 실험적 연구 (An Experimental Study on the Sound Insulation Performance for Light-weight Concrete Panel)

  • 정진연;이성호;정갑철
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2004년도 추계학술대회논문집
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    • pp.457-460
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    • 2004
  • This study examines the sound insulation of the light-weight wall using light-weight concrete and offers the basic datum for enhancing it. The sound insulation of the light-weight wall is determinated by the density, installation method, absorption materials, air layers etc. Among the factors, the solution of outlet that is the major cause of reducing sound insulation should be made. If absorption materials are installed in the cavity walls, it enhances to 15dB in 500Hz.

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공기음 차단성능 평가방법의 고찰 (Investigation on the Evaluation Method of Airborne Sound Insulation in Building and Building Elements)

  • 양관섭;이태강;이근희;김선우
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2001년도 춘계학술대회논문집
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    • pp.239-243
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    • 2001
  • In evaluating sound performance of building, it is important to carry on tests and evaluations based upon residential sound performances. Korean Standards include test methods on sound performance, but don't include any code on evaluation methods. Therefore, evaluation methods from Japan or ISO have been used for evaluating sound performance in domestic so far. In this study, every regulation from ISO, JIS, ASTM, especially for airborne sound insulation against building and building element, is analyzed in order to apply to establishment of Korean Standards on a sound performance evaluation method in buildings.

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