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차세대 해상전투실험체계 구현을 위한 V-C 연동실험 및 연동분석 방법론 연구
신현수,김정훈,최봉완,임동순,Shin, Hyunsoo,Kim, Junghoon,Choi, Bongwan,Yim, Dongsoon 한국군사과학기술학회 2016 한국군사과학기술학회지 Vol.19 No.1
The warfighting experimentation is the most important for the weapon acquisition process because the warfighting experimentation shall support the operation effectiveness as well as acquisition logicality. Therefore, ROK Navy is starting to set up the next generation warfighting experimentation systems. According to literature studies, there have been many studies regarding the interoperability of Simulators(Virtual) and Exercising models(Constructive), but not for studies regarding interoperability between Simulators(Virtual) and Analysis models(Constructive) that is the core component of next generation maritime warfighting experimentation systems. This study is dealing with the V-C(Analysis model) interoperability test and methodology of interoperation analysis. The purpose of the study is to provide the new analysis methodology through V-C(Analysis model) interoperation, which can be applied for the concept of operations(CONOPS) of next generation maritime warfighting experimentation systems. In addition to that, the study validates the suggested analysis methodology by the case study of a naval operation.
좌우독립형 SBW 시스템 적용을 위한 차량 안정성 & 조종성 향상에 관한 연구
신현수(Hyunsoo Shin),김창준(Changjun Kim),김기헌(Kiheon Kim),한창수(Changsoo Han) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper presents a control algorithm for a steer-by-wire(SBW) System. In an SBW system in a passenger car. the usual mechanical linkage between the steering wheel and the front wheels is replaced with an electrical connection. An SBW system consists of two parts: the steering wheel system and the front wheel system. This research considers the tie rod actuating type of the front wheel system, in which two independently actuating motors control the front wheels. The steering wheel and front wheel motors are modeled, using the bond graph method for both, but controlled by different means. The steering wheel system control algorithm used a torque map to generate reactive torque and damping. In the development of the tie-rod actuating type SBW system described herein, the Ackerman constraint was used for control of the two motors to improve stability. and maneuverability.
신현수(Hyunsoo Shin),김창준(Changjun Kim),배진(Jin Bae),한창수(Changsoo Han) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Active Front Steering (AFS) system enable vehicle performance to improve directional stability control and driver convenience. this AFS system is a complementary system for a front-steered vehicle that adds at lower speed or subtracts at higher speed based on vehicle information. Such as steering wheel angle, vehicle speed, lateral acceleration, yaw rate and road conditions. In this paper several mechanisms are studied which are realized in these AFS functions. Planetary gear system, Harmonic drive system and Link system are commonly known AFS mechanisms. And characteristic of each mechanism is referred in AFS functions.
유성기어형 능동 전륜 조향 시스템을 이용한 조종성과 안정성 향상을 위한 제어알고리즘 개발
신현수(Hyunsoo Shin),김창준(Changjun Kim),미안아쉬팍알리(Mian Ashfaq Ali),한창수(Changsoo Han),오승규(Seungkyu Oh),장진희(Jinhee Jang) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
Active Front Steering (AFS) system enables vehicle performance to improve directional stability control and driver convenience. AFS system is a complementary system for a front-steered vehicle that adds compensation angle at lower speed or subtracts at higher speed based on vehicle information and performance such as steering wheel angle, vehicle speed, lateral acceleration, yaw rate and road conditions. In this paper, planetary gear type AFS module modeling is used Bond graph method. Variable Gear Ratio(VGR) algorithm is considered vehicle speed and steering wheel angle for driver’s convenience. Active steering is proposed to improve vehicle yaw stability which use PID controller.
고농도 차아염소산나트륨 발생장치의 소독부산물 제어에 관한 연구
조해진(Haejin Cho),신현수(Hyunsoo Shin),고성호(Sungho Ko) 대한기계학회 2017 大韓機械學會論文集B Vol.41 No.3
상수도 소독공정에서 사용되고 있는 차아염소산나트륨은 일반적으로 유효염소 0.8 %로 생산되어 투입되고 있으며, 투입량이 많아질수록 소독부산물(Chlorate)이 증가되었고 수질기준을 초과하게 된다. 이에 따라 본 연구에서는 유효염소를 12%로 높인 차아염소산나트륨 발생장치의 전해조에 대해 소독부산물을 제어할 수 있도록 양극수 pH를 조절하였다. 실험결과 전해조 내 양극수 pH를 4.2(일반적인 차아염발생장치 운전 pH)에서 1.53으로 조절함으로서 Chlorate 농도는 95% 이상 낮아진 것으로 나타났으며, 또한 낮은 전류가 인가됨에 따라 양극의 효율도 15% 개선되는 결과를 얻었다. 이 장치의 개발로 대용량 상수도에서도 안전한 차아염소산나트륨의 적용이 가능하여 소독공정의 안전성 향상에 기여할 것으로 기대된다. Sodium hypochlorite used in water disinfection processes is generally in the production of chlorine to 0.8%. As the dose of chlorine increases, disinfection by-products (Chlorate) also increase simultaneously and exceed water quality standards. In this study, the electrolytic cell of a sodium hypochlorite generator (12% chlorine) was adjusted to control the production of the disinfection by-products. As a result, it was possible to reduce Chlorate concentrations by more than 95% by adjusting the pH of the electrolytic cell from 1.53 to 4.2 (normal pH of the electrolytic cell). As a low current is required to obtain these results, a 15% improvement in the efficiency of the positive electrode is also observed. For the development of High Sodium Hypochlorite Generation can be used in a safe sodium hypochlorite solution, which is expected to contribute to improvement in the safety of the disinfection process.