Cox 비례위험 모델을 활용한 기동화 능력에 따른 지휘자 생존분석

강승욱,문호석 한국국방경영분석학회 2024 한국국방경영분석학회지 Vol.50 No.1

육군의 Army TIGER(AT)는 유ㆍ무인 복합전투체계를 기반으로 부대를 기동화하고, 네트워크로 연결하며AI로 지능화하여 전투 효율성을 극대화한 미래형 전투체계이다. 특히 AT의 기동화는 모든 전투원이 걸어다니지 않고, 기동화된 장비에 탑승하여 전투를 수행하는 개념으로 전투원의 생존성을 향상시킨다는 목적이있다. AT의 이런 기동화가 전투의 최전선에 있는 지휘자(소대장)의 생존에 어떻게 영향을 미칠까? 본 연구에서는 이런 궁금증을 확인해보고자 기동화 여부에 따라 지휘자의 생존에 차이가 있는지, 지휘자 생존에 중요한 영향을 주는 요인은 무엇인지 그리고 지휘자의 생존 향상을 위해 어떤 부분에 관심을 가져야 하는지를분석하고자 하였다. 이를 위해 현재 육군에서 시행되고 있는 훈련 중 실제 전장과 가장 유사한 훈련인 KCTC 훈련의 훈련결과 데이터를 활용하여 간접적으로 기동화 유무에 따른 차이를 분석하였다. 본 연구에서는 훈련부대의 공격, 방어 훈련결과 빅데이터에 로그 순위 검정을 적용하여 기동화 유무에 따른 지휘자의 생존율차이를 검증하고, Cox 비례 위험모델을 이용하여 지휘자 생존시간에 영향을 미치는 요인을 분석하고 의미를도출하였다. 관찰결과인 KCTC 훈련결과 데이터를 통해 간접적으로 기동화 여부에 따른 지휘자의 생존분석을 통해 AT 기동화 의미와 전투원 생존성 향상에 필요한 제언을 제시했다. Army TIGER (AT) of the Army is a future-oriented combat system based on a combined manned and unmanned platform, aiming to mobilize and network troops while enhancing combat efficiency through artificial intelligence. In particular, the mobilization of AT involves the concept of not all combatants walking but rather engaging in combat by boarding mobilized equipment, with the purpose of enhancing the survivability of personnel. How does this mobilization of AT affect the survival of conductor (platoon leaders) at the forefront of combat? This study seeks to confirm such curiosity by analyzing whether there is a difference in commander survival based on mobilization, identifying factors crucial to conductor sur- vival, and determining areas of interest to enhance conductor survival. To achieve this, training results data from the most realistic training resembling actual combat, the KCTC training, currently conducted by the Army, was utilized to indirectly analyze differences based on mobilization. Through applying log rank tests to the big data of attack and defense training results of training units, this study verified the differ- ence in commander survival rates based on mobilization and analyzed factors influencing conductor surviv- al time using the Cox proportional hazards model, deriving meaningful implications. Through indirect anal- ysis of commander survival based on mobilization using KCTC training results data, this study provided recommendations for the significance of AT mobilization and enhancement of combatant survivability

PI자기동조제어기를 적용한 전류가역쵸퍼시스템의 성능개선에 관한 硏究

강승욱 가톨릭상지전문대학 1997 논문집 Vol.27 No.1

There are two important requirements for high-performance controlled electrical droves ; One is the steady-state and dynamic tracking ability to set point changes, and the other is the ability to recover from load disturbance. Conventional PI/IP controllers for such drives are designed on the basis of local lineaization about an operating point. These controllers are very effective if the load changes are small and the operating conditions don't force the system too far away from the linearizing equilibrium point. The adaptive control strategy which has received wide spread acceptance in the electrical vehicle control is the self-tuning control. This paper describes the design and the implementation of a self-tuning proportional-integral speed controller for a Bilaterial dc chopper based on 16 bits microprocessor.

전기철도 전기분야 이해 : KORAIL 중심

강승욱 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.11

Improvement of Gas Adsorption Efficiency of Fragile Porphyrin Based MOFs

강승욱,설규민,강찬우,최은영 한국고분자학회 2020 한국고분자학회 학술대회 연구논문 초록집 Vol.45 No.2

여단급 KCTC 훈련 결과 빅데이터를 이용한 보병중대 임무별 공격작전 전투 결과에 영향을 주는 요인 분석

강승욱,문호석 미래군사학회 2023 한국군사학논총 Vol.12 No.3

KCTC 훈련은 실제 전장과 유사한 환경에서 훈련할 수 있는 경험을 제공하며, 훈련 중 MILES 장비를 통해 훈련 결과가 저장된다. 본 연구의 목적은 여단급 KCTC 훈련 결과 빅데이터를 분석하여 보병중대의 공격작전 전투 결과에 영향을 미치는 요인을 분석하는 것이다. 본 연구에서는 보병중대가 연구 대상이다. 모든 보병중대가 같은 임무를 가지고 있다고 가정하고 분석하였던 기존 연구와 달리 각 보병중대의 임무를 구분하여 분석하였다. 이를 위해 각 여단 훈련에 대한 보병중대의 위치정보를 이용하여 임무를 확인하고, 보병중대의 임무별 전투 결과는 군사적 교리를 바탕으로 정의하였고, 전장 상황을 나타내는 설명변수를 생성한 후에 회귀분석을 통해 전투 결과에 영향을 미치는 요인을 분석하였다. 본 연구에서는 훈련부대뿐만 아니라 대항군부대의 공격작전 전투 결과를 함께 분석하여 훈련부대와 대항군부대의 차이를 확인하였다. 이를 통해서 훈련부대와 대항군부대 보병중대의 공격작전 전투 결과에 영향을 미치는 요인을 도출하고, 상호 비교를 통해 훈련부대 보병중대가 공격작전에서 좋은 결과를 내는 데 필요한 요소를 확인하고 함의를 도출하였다. Korea Combat Training Center (KCTC) training provides a valuable opportunity for practical experience in a battlefield-like environment, with training results recorded using MILES equipment. The objective of this study is to analyze the factors influencing the outcomes of infantry company offensive operations by examining the big data generated from brigade-level KCTC training results. The focus of this research is on infantry companies. In contrast to previous studies that assumed uniform missions for all infantry companies and analyzed them collectively, this study distinguishes and individually analyzes the missions of each infantry company. To achieve this, location information for each infantry company during brigade-level training was used to ascertain their respective missions. The combat results for each infantry company's mission were defined based on military doctrine, and explanatory variables representing the battlefield situation were created. Regression analysis was then employed to identify the factors affecting combat results. This study not only analyzed the combat results of training units but also considered those of the opposing forces (OPFOR), allowing for a comparative analysis to reveal differences between training units and OPFOR. Consequently, this research derived the factors influencing the combat results of infantry companies in both training units and OPFOR. Moreover, it identified the essential elements for achieving favorable outcomes in offensive operations by training unit infantry companies through comparative analysis, thus yielding valuable implications.

회생용 4분할 2상 쵸퍼에 의한 회생영역의 확대

이승환,김용주,한경희,정연택,강승욱 明知大學校 産業技術硏究所 1993 産業技術硏究所論文集 Vol.12 No.-

In this paper, we proposes two phase chopper system with flour. separate groups of D.C motor for regenerative braking. The main circuit consists of four sets of chopping parts, eight diodes and four separate groups of D.C motor. Although the proposed chopper circuit requires more circuit elements than the conventional two phase chopper system with, combined output, it has the following advantages: (1) The region of regenerative braking becomes twice as that of the conventional two phase chopper system. (2)Current division of load becomes equalized. Therefore. it is possible to drive not only series motor but also shunt and separately excited motor (3) The harmonic component of the source current is greatly diminished.

이동식전차선 시스템의 구동형 브래킷 형상 및 재질에 최적화 설계 검토

강승욱(Seung-Wook Kang),한성훈(Sung-Hun Han),김기남(Ki-Nam Kim) 대한전기학회 2019 대한전기학회 워크샵 Vol.2019 No.7

직류전동기의 자기동조제어에 관한 연구

강승욱,김성남,신종한,한경희,성낙규,이승환 明知大學校 産業技術硏究所 1997 産業技術硏究所論文集 Vol.16 No.-

There are two important requirement for high-performance controlled electrical drives: One is the steady-state and dynamic tracking ability to set point changes, and the other is the ability to set point changes, and the other is the ability to recover from load disturbance. Conventional PI/IP controllers for such drives are designed on the basis of local linearization about an operating point. these controllers are very effective if the load changes are small and the operating conditions do not force the system too far away from the linearizing equilibrium point. The adaptive control strategy which has received widespread acceptance in the industrial process control is the self-tuning control. This paper describes the design and the implementation of a self-tuning proportional-integral speed controller for a dc drive system. based on a 16-bit micro processor.

인버터 모듈의 DC-DC 컨버터로의 전환 응용에 대한 시뮬레이션

김영엽,강승욱 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.5

전기자동차 운전을 위한 직류타여자 전동기의 쵸퍼제어

한경희,강승욱,김용주,정연택,이승환 明知大學校 産業技術硏究所 1994 産業技術硏究所論文集 Vol.13 No.-

Recently, the speed control of electric motorcar usually adapts the chopper control method by the development of power electronics and semiconductor manufacturing techniques. When the chooper control is adapted to the speed control of electric motorcar. D.C.series motor is mostly used because of the large starting torques and good control characteristics. But with respect to the economy, D.C. separately excited motor with shunt characteristics is profitable because of high adhesivesness and consumption. So, we compare the characteristics of the bilateral variable-ratio chopper controlled D.C. separately exited motor with that of the D.C. series motor theoretically and experimentally, and present the method which is able to simplify the main chopper circuit by selecting among the forward powering, forward regenerative braking, backward powering, and backward regenerative braking only by using the main chopper control signal. Also, control method is studied which has similar driving characteristics to that of the gasoline motorcar.