• 제목/요약/키워드: 진동파워

검색결과 310건 처리시간 0.026초

차량 엔진마운트 최적 설계 (Optimal Design of Vehicle Engine Mount)

  • 강구태;원광민
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2001년도 춘계학술대회논문집C
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    • pp.361-368
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    • 2001

  • This paper introduces optimization techniques to design engine mount properties for passenger vehicle. The design targets are divided into three cases such as optimal positioning of powertrain modes, minimizing vibration of deriver's seat in idling and driving conditions. The proper models, mechanisms of vibration, and characteristics of optimization problems are discussed.

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보강판의 음향방사파워저감을 위한 제진재의 위치선정 (The selection to position visco-elastic material for reduction radiated sound power from a stiffened plate)

  • 안호일;김사수
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 1996년도 춘계학술대회논문집; 부산수산대학교, 10 May 1996
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    • pp.257-262
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    • 1996

  • The first purpose of this study investigates the influence of stiffening on the acoustic response of stiffened plates, which are often employed in steel structures. And the radiation efficiency is measured by average mean square velocity and sound intensity of stiffened plates. The second, it determines influence of mass, damp and stiffeness due to the partial adhesive visco-elastic material to reduce radiated sound power.

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진공도 변화에 따른 건식 진공펌프의 소음특성 (Noise Characteristics of dry pump according to change of vaccum degree)

  • 이현남;홍동표;이완형;정완섭
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 추계학술대회논문집
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    • pp.156-159
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    • 2002

  • This study reports on physical properties of the noise radiation caused by expansion of exhaust gas and vibration of pumps according to change of vaccum degree. The fundamental responses show that the sound power level radiated is proportional to the common logarithm of the degree of vaccum.

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KHST 차량 벽면의 투과손실값 예측 (Transmission Loss Prediction of KHST's Wall Section)

  • 김관주;윤태중
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 추계학술대회논문집
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    • pp.104-109
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    • 2002

  • The purpose of this study is to calculate transmission loss of KHST passenger vehicle's wall section accurately Typical transmission loss measurement of wall in the laboratory condition was carried out in advance, which is easier than KHST. Transmission loss results were compared with those by statistical acoustic method. Transmission loss values of KHST calculated by experimental method are compared with those from closed form solution.

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Acoustic Transfer Function을 이용한 실차 실내 소음 예측 (Prediction vehicle interior noise using Acoustic Transfer Function)

  • 고성규;신한승;조환철
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2011년도 춘계학술대회 논문집
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    • pp.534-537
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    • 2011

  • This Paper present prediction Vehicle Interior Noise using ATF(Acoustic Transfer Function) and engine radiated sound power. This is useful tool to qualifying the effectiveness of Air-borne noise Path. Furthermore This method provide acoustic package performance of the vehicle and able to prepare frequency band to same segment or benchmarking vehicle.

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