사단법인한국소음진동공학회 The Korean Society for Noise and Vibration Engineering

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저널레터 : Trans. Korean Soc. Noise Vib. Eng., Vol. 33, No. 6 한국소음진동공학회 2023-12-22
첨부파일
2023년 10월 제 33권 제 6호 통권 275호
3축 능동마운트를 위한 효율적인 협대역 능동진동제어 알고리즘
Efficient Active Vibration Control Algorithm for 3-axis Active Mount
허 준 영 · 신 승 민 · 박 영 철 · 정 규 철 · 김 영 환 · 손 성 완
Junyeong Heo, Seungmin Shin, Youngcheol Park, Kyucheol Jung, Younghwan Kim and Sungwan Son
This study proposes an efficient narrowband Filtered-x Least Mean Square (FxLMS) algorithm for the three-axis active mount. The three-axis active mount is an adaptive equipment that controls vibrations in three directions (x, y, and z axes). The proposed algorithm generates control signals using...
반사면 위에서의 컴팩트 원형 하이브리드 소음 제어 시스템
Compact Circular Hybrid Noise Control System on the Reflecting Surface
이 상 현 · 박 영 진
Sanghyeon Lee and Youngjin Park
The compact hybrid noise control system is proposed to prevent noise-induced hearing loss of workers in industrial sites. Noise in a wide frequency band can be reduced through a hybrid method combining a noise barrier, which is a passive noise reduction method, and active noise control. Unlike conventional...
콘크리트 포장면 개량을 통한 도로교통소음 저감 효과 연구
Evaluation of Road Traffic Noise Reduction for Concrete Pavement Surface Improvement
천 병 희 · 김 철 환 · 장 서 일 · 류 훈 재
Byeong Hee Chun, Chul Hwan Kim, Seo Il Chang and Hunjae Ryu
Noise barriers are mainly applied to reduce road traffic noise on highways; however, noise control methods need to be diversified owing to structural limitations and economic problems. In this study, the diamond grinding (DG) and next generation concrete surface (NGCS) methods applied to improve...
차량 횡방향 속도 추정을 위한 연구
Study on Vehicle Lateral Velocity Estimation
황 규 용 · 성 민 상 · 한 철 희 · 오 종 석
Gyu Yong Hwang, Min-sang Seong, Chul-hee Han and Jong Seok Oh
This study focuses on the estimation of lateral velocity in vehicles. As the demand for advanced vehicle control systems increases, accurately estimating the longitudinal and lateral velocities of a vehicle is crucial for enhancing safety and performance. However, it is challenging to estimate these velocities using conventional...
임의 형상 음향 공동의 고유치 정밀도 저하 문제 극복을 위한 NDIF법 응용: 제2부(예제 연구 및 고찰)
Application of NDIF Method for Overcoming the Problem of Lowering the Eigenvalue Accuracy of Arbitrarily-shaped Acoustic Cavities: Part 2 (Example Studies and Consideration)
강 상 욱
Sang Wook Kang
The existing NDIF method has the limitation that the determinant curve function, which gives the eigenvalues of an analyzed acoustic cavity, is dependent on the frequency range of interest and as the result the accuracy of the eigenvalues varies as the frequency range changes. To overcome the weakness, a practical method...
교전 운용에 따른 충격하중을 고려한 안테나 장치의 구조건전성 및 성능 분석
Analysis of Structural Integrity and Performance of Antenna Device under Wartime Shock Loads
김 대 근 · 임 선 빈 · 노 현 규 · 이 종 학 · 신 동 준 · 이 종 훈 · 박 경 락 · 강 신 민 · 박 노 철
Daekeun Kim, Seonbin Lim, Hyun Gyu Roh, Jong-Hak Lee, Dong-Jun Shin, Jong-Hoon Lee, Gyeong-Rak Park, Shin-Min Kang and No-Cheol Park
The antenna device used in the close-in weapon systems is the primary device for detecting targets and effectively countering enemy aircraft, anti-ship guided munitions, and close-in maritime terrorist threats, as well as ensuring survivability in a warfare environment. The antenna device must exhibit structural integrity...
충격 하중의 주파수 특성을 고려한 안테나 구조물의 모드 기반 구조 경량화
Modal-based Structural Weight Reduction of Antenna Structure Considering Frequency Characteristics of Shock Loads
김 휘 재 · 박 영 진 · 김 대 근 · 임 선 빈 · 이 종 학 · 신 동 준 · 박 경 락 · 김 희 준 · 김 태 석 · 박 노 철
Wheejae Kim, Youngjin Park, Daekeun Kim, Seonbin Lim, Jong-Hak Lee, Dong-Jun Shin, Gyeong-Rak Park, Hee-Joon Kim, Tae-Suk Kim and No-Cheol Park
The antenna structure of the close-in weapon systems, which is integrated into the machine gun, needs to be lightweight to reduce the load on the gun’s driving. Additionally, the antenna structure must ensure structural integrity against shock loads to guarantee survivability in various naval combat...
수요응답형 버스 운행 경로 변화에 따른 농촌지역의 도로교통소음 변화에 대한 평가
Evaluation of Road Traffic Noise Change due to Bus Route Variation of Demand Responsive Transit Scenario in Rural Area
이 재 관 · 노 창 균 · 유 지 수
Jae Kwan Lee, Chang-Gyun Roh and Jisu Yoo
Demand responsive transit (DRT) bus operations, with anticipated time, economic, and environmental benefits, are being actively promoted in rural areas. DRT is a model that operates buses based on passenger demand, rather than fixed schedules and routes. The aim of this study is to assess potential improvement...
해상풍력발전 블레이드 진동기반 이상 진단을 위한 전산 축소 모델 개발
Reduced Order Model Construction for Vibration-based Fault Diagnosis of Offshore Wind Turbine Blade
김 동 준 · 서 윤 호 · 마 평 식 · 우 정 한
Dongjoon Kim, Yun-Ho Seo, Pyung-Sik Ma and Jung-Han Woo
Current maintenance methods for offshore wind turbine blades are time-consuming, costly, and inaccurate as they require manual inspection by trained technicians with access to the wind turbine and are dependent on visual inspection, through which concealed or internal defects may be overlooked. This study...
바닥 가진 시 PH15-7Mo 브라켓 진동 피로 파괴에 따른 모달 파라미터 추정
Modal Parameter Estimation for PH15-7Mo Bracket Vibration Fatigue Failure with a Base Excitation
강 다 솜 · 김 선 민 · 배 승 훈 · 조 대 원 · 김 대 환 · 박 태 국 · 백 승 훈 · 양 민 혁 · 도 승 환
Da Som Kang, Seonmin Kim, Seung-Hoon Bae, Dae-Won Cho, Dae-Hwan Kim, Tae-Kook Park, Seunghun Baek, Minhyeok Yang and Seunghwan Do
In this study, a method for estimating modal parameters (natural frequency, damping ratio, mode shape) in vibration fatigue testing of brackets with base excitation is proposed. The circle fitting method was used to estimate the damping ratio from the acceleration transmissibility without considering...
원자로용기 결함 조건에 따른 원자로 내부구조물 이상진동에 대한 유한요소 해석
Finite Element Analysis of Anomalous Vibrations in Reactor Vessel Internals According to Reactor Vessel Fault Conditions
고 태 영 · 정 도 연 · 최 영 철
Taeyoung Ko, Doyun Jung and Youngchul Choi
In this study, a finite element analysis model for a real-scale reactor was developed to simulate abnormal vibration signal data of the reactor vessel internals (RVIs). The abnormal signals were simulated by setting the degree of fault of 54 stud bolts to a value between 0 and 1. The accuracy of the analytical...
항공기 외부 장착물 비대칭성을 고려한 서스펜션 시스템의 비행 하중 고려 휘플 트리 설계
Design of Whiffletree Based on Flight Loads of Aircraft Suspension Mounting Asymmetric External Stores
명 호 준 · 송 용 진 · 박 경 수 · 임 재 문 · 오 민 진 · 장 종 윤 · 김 준
Ho Joon Myoung, Yong-Jin Song, Kyoung-Su Park, Jae Moon Im, Min Jin Oh, Jong Youn Jang and Joon Kim
Recently, unmanned aerial vehicles and fighters have been equipped with external stores. Due to their significant payload capacity, these external stores play a crucial role in the load distribution on the armament suspension that supports them during loading and release operations. In this study, we aimed to develop...
Twin-disk 시험기를 활용한 차량 동역학에 따른 휠과 레일에서 발생하는 진동 특성 연구
Characteristics of Vibrations at the Wheel and Rail According to Train Vehicle Dynamics using a Twin-disk Rig
이 현 욱
HyunWook Lee
Wheel-rail interaction-induced vibrations are inherent to railway vehicles and have a significant impact on various phenomena, including adhesion coefficients, rolling noise, and wear. While research on these vibrations has primarily relied on theoretical approaches due to practical limitations, this study...
원구형 관절을 갖는 ER 햅틱 인터페이스의 2자유도 힘반향 제어
2-DOF Force-reflecting Control of ER Haptic Interface Featuring a Spherical Joint
한 영 민
Young-Min Han
This paper presents the design and control of a haptic interface using a smart fluid. Recently, there has been active research on interfaces incorporating the third human sense, i.e., the sense of touch, into master-slave systems. Therefore, to realize 2-DOF haptic reflections in the master, this study develops a smart...
고정단 평판의 전 주파수 대역 고유치 추출이 가능한 NDIF법 개발: 제1부(이론 정립 및 검증)
Development of NDIF Method for Extraction of Eigenvalues in the Entire Frequency Range of Clamped Plates: Part 1 (Theoretical Formulation and Verification)
강 상 욱
Sang Wook Kang
In the eigenvalue analysis of clamped plates, the original NDIF method cannot extract low-order eigenvalues and eigenmodes when the number of nodes is increased. Recently, the author developed a practical method to solve this problem for eigenvalue analysis of membranes and acoustic cavities. In the study, the practical...
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The Korean Society for Noise and Vibration Engineering
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