간행물
한국기계기술학회지 KCI 등재 Journal of the Korean Society of Mechanical Technology 韓國機械技術學會誌
- 발행기관 한국기계기술학회
- 자료유형 학술지
- 간기 격월간
- ISSN 1229-604X (Print)2092-0385 (Online)
- 수록기간 1999 ~ 2025
- 주제분류 공학 > 기계공학 공학 분류의 다른 간행물
- 십진분류KDC 550DDC 620
권호리스트/논문검색
제26권 제6호 (2024년 12월) 46건
41.
2024.12
구독 인증기관 무료, 개인회원 유료
In this study, we explored the design of improved road lighting for drivers and pedestrians using ray-tracing and reverse ray-tracing methods. Conventional road lighting often poses issues such as glare and unevenly illuminated areas, which can compromise safety and efficiency. These problems stem from traditional design approaches focused solely on achieving high luminance and electrical power. However, our research shows that higher brightness or power consumption does not necessarily equate to better road lighting. By applying ray-tracing techniques, we aimed to design a reflector that enhances visibility while being easier on the eyes of both drivers and pedestrians. Our optimized reflector design demonstrated significant improvements in both central and average illuminance levels, all while reducing energy consumption. This study suggests that careful reflector design is crucial for creating safer and more energy-efficient road lighting solutions.
4,000원
42.
2024.12
구독 인증기관 무료, 개인회원 유료
In this study, we explored the design of improved road lighting for drivers and pedestrians using ray-tracing and reverse ray-tracing methods. Conventional road lighting often poses issues such as glare and unevenly illuminated areas, which can compromise safety and efficiency. These problems stem from traditional design approaches focused solely on achieving high luminance and electrical power. However, our research shows that higher brightness or power consumption does not necessarily equate to better road lighting. By applying ray-tracing techniques, we aimed to design a reflector that enhances visibility while being easier on the eyes of both drivers and pedestrians. Our optimized reflector design demonstrated significant improvements in both central and average illuminance levels, all while reducing energy consumption. This study suggests that careful reflector design is crucial for creating safer and more energy-efficient road lighting solutions.
4,000원
43.
2024.12
구독 인증기관 무료, 개인회원 유료
Study on Occurrence of Error in Surface Roughness Due to Changes in Angle during Optical Measurement
The results of the measurements using an optical surface roughness meter are shown according to the angle changes of 0, 0.5, 1, 1.5, 2, and 3°. Through the experiment, it can be seen that the measurement value is 3.140 at 0°, 3.148 at 0.5°, 3.140 at 1°, 3.151 at 1.5°, 5.078 at 2°, and 4.790 at 3° setting. In addition, the test statistic (P) value is 0.000, which is smaller than the significance level of 0.005, so it was confirmed through the experiment that a measurement error occurs according to the angle change when measuring the surface roughness.
4,000원
44.
2024.12
구독 인증기관 무료, 개인회원 유료
The research led to the development of a specialized knife for cutting waste ropes and nets from marine waste. The composition of the manufactured knife was analyzed with XRF equipment, and the main components were iron and chromium, with small amounts of molybdenum, vanadium, and nickel. Vickers hardness measurements showed similar hardness values at the surface and center, and a metallographic microscope examination of the knife surface texture revealed a fine-grained martensite structure. The low heating value of the waste rope and waste net was measured, and the low heating value was higher than 3,500 kcal/kg, which is the quality certification standard for solid refuse fuel.
4,000원
45.
2024.12
구독 인증기관 무료, 개인회원 유료
In this study, a pulse jet engine that operates without a shutter valve was developed using a reflector. The pulse jet engine has the disadvantage of being noisy and low in efficiency compared to other engines, but has the advantage of a simple structure and no significant limitations on the fuel used, so research is being conducted to apply this engine to industrial fields such as biomass fuel conversion and boiler systems. Various research is being conducted as it becomes the basis of a pulse detonation engine. In this study, a pulse jet engine is designed, manufactured and tested successfully. The developed pulse jet engine can be used as a power source for various transportation methods such as vehicles and hovercraft through improvement.
4,000원
46.
2024.12
구독 인증기관 무료, 개인회원 유료
Lightweighting is crucial in various industries, especially for bicycles where weight and stiffness are key. Traditional materials like steel, aluminum, and carbon each have pros and cons. This study compares hybrid tubes made of aluminum and carbon composites with conventional aluminum tubes. Using structural analysis and experimental testing, the hybrid tubes showed a weight reduction of up to 17.25% and maintained acceptable deformation levels. Finite element analysis confirmed these findings, demonstrating the hybrid tubes' potential as superior bicycle frame materials. Future research should focus on long-term durability and fatigue characteristics.
4,000원
