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Experimental Study of Vibration Characteristics of OKPO 300
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OKPO 300 진동 특성에 대한 실험적 연구

논문 기본 정보

Type
Academic journal
Author
Arom Hwang (거제대학교)
Journal
The Korean Society of Ocean Engineers Journal of Ocean Engineering and Technology Vol.30 No.5 (WN.132) KCI Excellent Accredited Journal SCOPUS
Published
2016.10
Pages
400 - 404 (5page)

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Topic
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Method
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Result
Experimental Study of Vibration Characteristics of OKPO 300
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Abstract· Keywords

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This paper presents experimental results for the vibration characteristics of the small unmanned underwater vehicle (UUV) OPKO 300, which was designed and manufactured by Daewoo ship and Marine Engineering Ltd. The autonomy of UUVs has led to an increase in their use in scientific, military, and commercial areas because their autonomy makes it possible for UUVs to be utilized instead of humans in hazardous missions such as mine countermeasure missions (MCM). Since it is impossible to use devices based on electromagnetic waves to gather information in an underwater environment, only sonar systems, which use sound waves, can be used in underwater environments, and their performance can strongly affect the autonomy of a UUV. Since a thruster system, which combines a motor and propeller in a single structure, is widely used as the propulsion system of a UUV and is mounted on the outside of a UUV’s stern, it can generate vibration, which can be transferred throughout the shell of the UUV from its stern to its bow. The transferred vibration can affect the performance of various sonar systems such as side-scan sonar or forward-looking sonar. Therefore, it is necessary to estimate the effect of the transferred vibration of the UUV on the sonar systems. Even if various numerical methods were used to analyze the vibration problem of a UUV, it would be hard to predict the vibration phenomena of a UUV at the initial design stage. In this work, an experimental study using OKPO 300 and an impact hammer was carried out to analyze the vibration feature of a small real UUV in the air. The frequency response function of the vibration based on the experimental results is presented.
#Modal test 모드 시험 #Unmanned underwater vehicle 무임잠수정 #Frequency response function 진동 응답 함수 #Experimental analysis 실험 결과 분석 #Vibration transfer function 진동 전달 함수

Contents

ABSTRACT
1. 서론
2. 진동 주파수 응답 함수
3. 진동 특성 파악 실험
4. 결론
References

References (8)

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[학술지(정기간행물)] - Askari, E / 2009 / Coupled Vibration of a Fluid Filled Cylindrical Container with a Cylindrical Internal Body / Journal of Fluids and Structures 25 : 389 ~ 405 google schola [학술지(정기간행물)] - Chen, X / 2003 / Nonlinear Hydroelastic Analysis of a Moored Floating Body / Ocean Engineering 30 : 965 ~ 1003 google schola [학술지(정기간행물)] - Halevi, Y / 2006 / Transfer Function Modeling of Multi-link Flexible Structures / Journal of Sound and Vibration 296 : 73 ~ 90 google schola [학술지(정기간행물)] - Jefferys, E. R / 1984 / A Transfer Function Method of Modeling Systems with Frequency Dependent Coefficients / Journal of Guidance, Control, and Dynamics 7 (4) : 490 ~ 495 google schola [학술대회논문] - Min, C. H / 2011 / An Experimental Study on High-Frequency Vibration Analysis of a circular Cylindrical Shell in Contact with Water / Proceedings of the Twenty-first ISOPE Conference : 322 ~ 326 google schola

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