• Title/Summary/Keyword: 연료탱크

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Prediction of the radiated noise generated by fuel tank of LPG vehicle (LPG 차량에 장착된 연료탱크의 방사소음 예측에 관한 연구)

  • Lee, Sang-Kwon;Kim, Sung-Jong;Lee, Dae-Yup;Kim, Tae-Yong
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2006.11a
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    • pp.869-874
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    • 2006
  • Fuel tank noise of the LPG vehicle is getting more important for reduction of vehicle noise, because major noise of the vehicle was reduced. Therefore, in this paper, Fuel tank noise and vibration are measured, then the modal analysis is applied for prediction of fuel tank noise. To predict fuel tank noise, various methods are applied by using FEM and BEM techniques

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Experimental Study and Evaluation Method for Sloshing Noise of Fuel Tank on Passenger Vehicle (승용차량용 연료탱크 슬로싱 현상에 대한 실험적 고찰 및 평가 방법에 대한 연구)

  • Ahn, Sejin;Yoon, Seongho
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.24 no.6
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    • pp.444-451
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    • 2014
  • The signal patterns of slosh noise produced by the fuel tank of a passenger vehicle are characterized by analyzing vehicle interior noise, fuel tank vibration, and near-field noise radiated from the fuel tank. This paper also shows the noise transfer path analysis results performed from the fuel tank to the vehicle inside. On top of them, physical index is described, demonstrating a good correlation with subjective feeling of slosh noise. It is essential to identify the main noise transfer paths for redesigning of the fuel tank system aiming at reducing slosh noise and also helpful to apply physical index in evaluating and reducing this noise. It is found that structure-borne path is the main root of slosh noise and a value reveals a good correlation with subjective feeling.

Vibration Fatigue Analysis of Automotive Fuel Tank Using Transfer Function Method (Transfer Function Method를 이용한 자동차 연료탱크의 진동 피로 해석에 대한 연구)

  • Ahn, Sang Ho
    • Journal of Auto-vehicle Safety Association
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    • v.12 no.3
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    • pp.27-33
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    • 2020
  • In this paper, the process of predicting efficient durability performance for vibration durability test of automobile parts using vibration test load on automobile fuel tank is presented. First of all, the common standard load that can be applied to the initial development process of the automobile was used for the fuel tank and the vulnerability of the fuel tank to the vibration fatigue load was identified through frequency response analysis. In addition, the vulnerability of the fuel tank was re-enacted through vibration durability test results, and the scale factor was applied to the standard load. In order to predict the vibration durability performance required for detailed design, vibration fatigue analysis was performed on the developed vehicle with the frequency of vibration severity equivalent to the durability test, and the vulnerability and life span of the fuel tank were identified through the process of applying weights to these selected standard loads, thereby reducing the test time of the development vehicle.

Transient Response Analysis of Cylindrical Liquid Fuel-Storage Tank subject to Initial Acceleration (원통형 액체 연료탱크의 초기 가속에 따른 과도응답 해석)

  • Lee, S.Y.;Joo, Y.S.;Kim, K.W.;Cho, J.R.
    • Proceedings of the KSME Conference
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    • 2000.11a
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    • pp.475-480
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    • 2000
  • The transient dynamic-response analysis of fuel-storage tanks of flying vehicles accelerating in the vertical direction is achieved with finite element method. A fuel-storage tank is a representative example of the fluid-structure interaction problem, in which structure and fluid media interact strongly. For the accurate analysis of this complicated fluid-structure system, we employed ALE(arbitrary Lagrangian-Eulerian) coupling method. Two types of fuel-storage tanks, one with two baffles and the other without baffle, are considered to examine the effect of baffles. The fuel-storage tank with baffles shows more uniform hydrodynamic pressure distribution, resulting effective stress in structural region and faster convergence from transient to steady states. MSC/Dytran, a commercial FEM software for the 3D coupled dynamic analysis, is used for this analysis.

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A Study on the Prediction of the Radial Noise Generated by Structural Vibration of the Fuel Tank in LPG Vehicle (LPG차량에 장착된 연료탱크의 구조 진동으로 인한 방사소음 예측에 관한 연구)

  • Kim, Tae-Yong;Kim, Sung-Jong;Lee, Dae-Yup;Lee, Sang-Kwon
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.17 no.2 s.119
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    • pp.136-142
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    • 2007
  • Fuel tank noise of the LPG vehicle is getting more important for reduction of vehicle noise, because major noise of the vehicle was reduced. Therefore, in this paper, Fuel tank noise and vibration are measured, then the modal analysis is applied for prediction of fuel tank noise. To predict fuel tank noise, various methods are applied by using FEM and BEM techniques.

The effect on fatigue life for dynamic behavior of external fuel tank horizontal fin (외부 연료탱크 수평 핀 동적거동이 피로수명에 미치는 영향)

  • Kim, Geun-Won;Shin, Ki-Su
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.40 no.3
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    • pp.209-214
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    • 2012
  • Recently, there were significantly increased cracks failure for external fuel tank horizontal fin of F-5 aircraft. In this paper, the dynamic behavior of horizontal fin was to quantitate by using Finite Element Method. To achieve this goal, the fatigue analysis for time and frequeucy domain has been performed by using the dynamic load spectrum of speed brake. In conclusion, it was proved that fatigue life of the horizontal fin was reduced by the influence of dynamic behavior.

A Study on the Durability Estimation of Vehicle Fuel Tank (차량용 연료탱크의 내구도 평가에 관한 연구)

  • Hong, Min-Sung;Cho, Eun-Hee
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.18 no.6
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    • pp.614-620
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    • 2009
  • A fuel tank of a vehicle is an important part due to its flammable contents ant its importance during crash conditions. Therefore, the fuel tank's design should be assessed for durability and robustness to ensure safety during the early development phase. Previously, evaluation for the durability was done by testing in physical driving conditions which could only be done after the completion of the vehicle. Computation simulation is a more effective method to evaluate the strength and durability of the fuel tank during the early stage. In this paper, two outstanding computational simulation methods are studied. One evaluates PV cycle fatigue due to build up pressure in the fuel tank and the other evaluates the PSD vibration fatigue from modal characteristics. The results show that computational methods agree with physical tests and are thus suitable to analyze the strength and durability of the fuel tank at early development phase.

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