• 제목/요약/키워드: Vibration Characteristic Analysis

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지뢰탐지 실험플랫폼의 진동 특성 분석 (Analysis of the Vibration Characteristic for the Mine Detectable Test Platform)

  • 장유신;곽노진;한승훈;지언호;지창진
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2014년도 춘계학술대회 논문집
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    • pp.588-595
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    • 2014
  • In this paper, analysis of the vibration Characteristic for the Mine Detectable Test Platform is described. The test platform system is the multi-sensor mine detectable vehicle. This multi-sensor mine detectable unit is more efficient detection performance than other conventional methods. The test platform system has five subsystems, the UWB(Ultra Wide Band) sensor scanner, the MD(Metal Detector) sensor scanner, the neutron sensor scanner, and the detectable vehicle. We perform the vibration tests for the test platform and analyze the vibration characteristic, such as the max displacement, the max deformation and the max Von-Misses Stress.

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지뢰탐지 실험플랫폼의 진동 특성 해석 (Analysis of the Vibration Characteristic for the Mine Detectable Test Platform)

  • 장유신;곽노진;한승훈;지언호;지창진
    • 한국소음진동공학회논문집
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    • 제24권12호
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    • pp.927-934
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    • 2014
  • In this paper, analysis of the vibration characteristic for the mine detectable test platform is described. The test platform system is the multi-sensor mine detectable vehicle. This multi-sensor mine detectable unit is more efficient detection performance than other conventional methods. The test platform system has five subsystems, the UWB(ultra wide band) sensor scanner, the MD(metal detector) sensor scanner, the ND(neutron detector) sensor scanner, and the detectable vehicle. We perform the vibration tests for the test platform and analyze the vibration characteristic, such as the max displacement, the max deformation and the max Von-Misses stress.

수평축 풍력발전기의 Blade 동특성분석에 관한 연구 (A Study on the Dynamic Characteristic Analysis of the Horizontal Axis Wind Turbine System Blade)

  • 손충렬;변효인;박명우;류지윤
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2001년도 추계학술대회논문집 II
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    • pp.1394-1399
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    • 2001
  • The purpose of this paper is that investigates the dynamic behavior characteristic of W.T.S(Wind Turbine System) and carries out the evaluation analysis during operating W.T.S. To investigate the dynamic behavior characteristic of W.T.S. the experiments to measure vibration of the blade from the attached accelerometer on the flap and edge section of the blade that is one of the most important elements of dynamic characteristic of W.T.S are performed. Natural frequency and mode shape are calculated with commercial program (STAR MODAL) using the measured vibration acceleration that receives the signal with F.F.T Analyzer from the accelerometer. For validation of these experiments. the finite element analysis is performed with commercial F.E.M Program (ANSYS) on the basis of the natural frequency and mode shape. The results indicate that experimental values have good agreements with the finite element analysis.

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SMT 마운터의 동특성 분석 (Dynamic characteristic analysis of SMT mounter system)

  • 임경화;정진호;범희락
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2011년도 추계학술대회 논문집
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    • pp.440-445
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    • 2011
  • Dynamic characteristic analysis is required in developing SMT mounter system with high installation speed and position precision, because of vibration source occurred by positioning head. This paper presents the method of improving dynamic characteristic of SMT(Surface Mount Technology) mounter with finite element method and modal test. The design direction is that natural frequencies of SMT mounter must be higher than the vibration source. In addition, the effect of input shaping on residual vibration reduction is investigated by simulating the response of a first-order system.

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왕복동식 수소압축기의 완충기 해석 및 진동 측정 평가 (Snubber Analyzation and Vibration Measurement Estimation of Reciprocating Type Hydrogen Compressor)

  • 정재환;임장익;김효중;최병근
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2008년도 추계학술대회A
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    • pp.932-937
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    • 2008
  • The pulsation of a reciprocating type hydrogen compressor is occurred from the mechanism and this pulsation makes much noise and vibration. To reduce this pulsation, snubber is usually installed on that. To maintain the efficiency in the reciprocating type hydrogen compressor, the pulsation and vibration should be reduced. so it is necessary to research about the characteristic of pulsation and vibration. Therefore in this paper, the vibration characteristic of the snubber is analyzed in the base of optimized modeling condition through the flowing analysis of existing snubber. The prototype of reciprocating type hydrogen compressor is analyzed with numerical analysis. And making sure the present condition of hydrogen compressor through measurement of vibration and noise, and then it is established that the vibration characteristic data base on numerical analysis which will be develope.

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FEM 을 이용한 BLDC Axial-gap type 전동기의 진동과 소음 특성 분석 (The vibration and noise characteristic analysis of the BLDC Axial-gap type motor by using Finite Element Method)

  • 이택진;박준홍;이상호;홍정표
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2007년도 추계학술대회논문집
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    • pp.943-946
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    • 2007
  • The vibration and noise characteristic of the Axial-gap motor for an air conditioner were analyzed. Experimental Modal Analysis was performed to understand the vibration characteristic of the motor. The noise of motor was measured in a dead room. Finite Element Method was performed to find the vibration characteristic of the motor by using ABAQUS program.

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오일펌프 내장형 밸런스 샤프트 모듈의 동특성 시험 (The Dynamic Characteristic Test of Oil pump Integrated Balance Shaft Module)

  • 성은제;강대규;정찬용;한창수;김명수
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2007년도 추계학술대회논문집
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    • pp.403-408
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    • 2007
  • According as diesel automobile are produced, reduce noise and vibration that is occurred by characteristic of diesel engine, and need engine room layout optimization and research for light weight of parts. Balance Shaft Module is module parts for vehicles engine to improve performance and efficiency of engine and reduce noise and vibration. These days, an oil pump integrated balance shaft module and an oil sump integrated balance shaft module is on the rising for optimizing of engine room. In this study, produced prototype of oil pump integrated type balance shaft module, and achieved dynamic characteristic test about experimental modal analysis and noise/vibration of balance shaft module.

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벌크시멘트화차의 대차 하중시험과 진동성능시험 및 동특성 해석 연구 (Static load test of the bogie and vibration performance test, dynamic characteristics analysis of the bulk cement car)

  • 홍재성;함영삼;백영남
    • 한국철도학회논문집
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    • 제6권3호
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    • pp.186-193
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    • 2003
  • The object of this study is to ensure the stability of bulk cement cars conducting vibration performance test, dynamic characteristic analysis and static load test of bogie frame. In case of static load test, bogie static load test facility was used. In case of dynamic characteristic analysis, Vampire Software was used. In case of vibration performance test, real bulk cement cars were used in kyeung-bu line. In the results of static load test of bogie frame for bulk cement car, all structures satisfied allowable stress criteria of materials. The vibration performance test and dynamic characteristic analysis results satisfied allowable standards.

왕복동 수소 압축기의 진동 분석 및 평가 (Vibration Analysis of Reciprocating Hydrogen Compressor)

  • 조성원;이정환;김효중;최병근
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2007년도 춘계학술대회A
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    • pp.1020-1025
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    • 2007
  • The reciprocating type hydrogen compressor is for high pressure and volume. However this type compressor makes pulsation caused by mechanical characteristic. This type compressor also makes noise and vibration that cause negative effect to machine and working condition. Therefore, diagnosis and countermeasure are needed to decrease vibration for safety on hydrogen compressor. therefore in this paper, the numerical analysis and vibration measurement is conducted in order to investigate vibration characteristic and to evaluation vibration condition, Respectively

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비틀림 변환기용 압전 원판의 진동 해석 (Vibration Analysis of a Piezoelectric Disc for a Torsional Transducer)

  • 이정현;김진오
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2005년도 추계학술대회논문집
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    • pp.911-914
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    • 2005
  • The vibrational characteristics of the piezoelectric disc for a torsional vibration transducer is theoretically studied in this paper. The characteristic equation of the piezoelectric annular disc has been derived from Newton's End law and Gibb's free energy equations. With an anisotropic material property of the disc, the characteristic equation has yielded resonance frequencies. Numerically-calculated results were compared with the values obtained by finite element analysis and experiments

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