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이부환(Boo-Hwan Lee),김영운(Young-Un Kim),윤서욱(Seo-Uk Yoon) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.10
Combat Vehicle needs to have Self-Powered Air-Conditioning Unit although new combat systems have a tendency to apply an integrated system about heating, cooling and ventilating. A Self Powered air conditioning unit has lots of advantages that keep the cooled environmental in vehicle without using the main power. In this study we studied Diesel Powered Air Conditioning Unit for Armored Combat Vehicle as a special use and military specification and tried to do a case study that applies to one of the unique military combat vehicles. By using Fluent 5.3 we tried to find proper air ducting method and its location in the armored combat vehicle. When we need to upgrade our vehicle with a small modification of previous system, we should choose to the most effective model of them which we can select. The results show that Self-Powered Air-conditioning Unit gives one of the best solutions to the previous vehicles which haven't equipped with cooling unit for their crews.
이부환(Boo Hwan Lee),이인수(In Su Lee),전기준(Gi Joon Jeon) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
This paper describes a learning method of neural network controllers. The learning method improves the performance of indirect learning mechanism in the neuro-control of nonlinear systems. To precisely identify dynamic characteristics of the plant by utilizing a limited prior information we propose a new energy function which takes advantage of the proportional relationship between outputs of the plant and those of neural networks.
하지 장애인의 보행 효율성 향상을 위한 재활 훈련 유도 기법에 관한 연구
이부환(Boo-Hwan Lee),엄수홍(Su-Hong Um),이한솔(Han-Sol Lee),이응혁(Eung-Hyuk Lee) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6
본 연구의 목적은 하지장애인들의 보행 효율성 향상을 위한 재활 훈련 유도 기법에 관한 연구를 제안하였다. 제안하는 방법은 건측 다리에서 검출된 보행패턴을 통해 환측이라 가정한 다리에 착용된 슬관절 보조기의 액추에이터를 제어하는 방법이다. 정상인에게 보행분석 장비를 착용하여 평지를 걷게 하였으며, 건측 다리에서 검출된 압력 분포율과 슬관절 각도를 환측이라 가정한 다리에서 활용하여 검출된 슬관절 각도를 비교 및 분석하였다. 실험결과 환측이라 가정한 다리에서 검출된 슬관절 각도와 건측에서 검출된 슬관절 각도에서 80% 이상의 일치율 검증을 통해 재활 훈련 유도기법의 활용 가능성과 보행 효율성 향상을 확인하였다.
이부환(Boo Hwan Lee),황부일(Boo Il Hwang),김치환(Chi Hwan Kim) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
Gun’s Vibration and Bullet’s Variance has a critical effect on accuracy and hit probability of weapon system such as anti-aircraft gun system with high firing rate. Typical mechanism to reduce the amount of vibration and shock from ground is very important to gun system. In this paper, the suspension characteristics of the vehicle are studied for the improvement of isolating performance of gun firing system with high firing rate. Gun Fire test for the vehicle is conducted and computational models using RECURDYN and ADAMS are created based on test results. Through this study, results of computational analysis are compared with the real test results, which includes type, location and quantity of suspension and gun mechanism are selected for Anti-Aircraft Gun. From the result of this study, we could design and consider the proper component of the system such as suspension and gun spring
이부환(Boo-Hwan Lee),전기현(Gi-Hyun Jeon),김치환(Chi-Hwan Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
System Alignment is needed to develop more precise and fine weapon systems. There are typical methods to align and assemble the substructure of weapon system such as Laser or Optical tools. Laser Tools will give us more realistic and comfortable solution to our weapon fields. This paper propose Align method for hybrid system and compares and analyzes systemic performance between optical and laser tools to align hybrid weapon effectively. One of the Laser Tools has lots of advantages that measure status of alignment precisely without using optical mirror and lense. In this study we studied Laser Tools for Armored Combat Vehicle as a special use and military specification and tried to do a case study that applies to one of the unique military weapon system. By using optical tools and Laser tools we tried to find proper and prompt method and its solutions to check our misalignment in the Hybrid weapon. When we need to make our new weapon with a small modification of previous system, we should apply this method to align new substructure of weapon which we can select. The results show that Laser tools and Optical tools give one of the best solutions to align hybrid and complicate weapon which is needed to have high-precision weapon such as gun or laser weapon.