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 ~ 2024
- 주제분류 공학 > 기계공학 공학 분류의 다른 간행물
- 십진분류KDC 550DDC 620
권호리스트/논문검색
제18권 제2호 (2016년 4월) 24건
21.
2016.04
구독 인증기관 무료, 개인회원 유료
Unloading operation by the unloader is dependent on the experience of the operator in the cabin. If the operator receives information about the unloading situation in the process of lifting the bucket, it is possible to prevent the collision of the bucket with the ship structure. In recent years, numerous measurement systems have become available on the market for three-dimensional surveying of objects, but they are very expensive. This study presents a high quality, low cost 3D laser scanning system designed for object recognition. The developed 3D laser scanning system is built on the base of a 2D laser sensor by the extension with a servo motor and a rotation module. In order to evaluate performance of the developed 3D laser scanning system, the developed system was applied to scan a shape of hatch and cargo holder on a cargo ship. Experimental results showed that to obtain a 3D scanning data for the area around the hatch and cargo holder.
4,000원
22.
2016.04
구독 인증기관 무료, 개인회원 유료
The objective of this study is to investigate the effect of closed and open type on the load characteristics and amount of waste in tubular shaft and solid shaft for optimal design. The open and closed type were designed by 6 stage processes and applied for analysis. The coefficient of friction was set to Oil_Cold conditions as refer to the analysis library. It is found that the actual underfill phenomenon was not observed on the closed and open type. The metal flow of the closed and open type are revealed that the folding phenomenon was not occurred, thus there is no problem in actual production. The load characteristics are similar from stage 1 to stage 3 due to the same geometry of upper and lower die. However, tubular shaft and solid shaft are decreased 26% and 32% load from stage 4 to stage 6. In case of open type, amount of waste of tubular shaft and solid shaft are 11g and 14g, respectively.
4,000원
23.
2016.04
구독 인증기관 무료, 개인회원 유료
Tracked vehicles for military application such as tank and armored vehicle are operated in severe conditions of driving on gravel road and muddy water including river-crossing. Thus, coating on such vehicles requires more robust characteristics of coating in adhesion, corrosion(salt-spray) resistance and water resistance than those of vehicles for civil applications. Currently, coatings applied on the military equipments are mostly based on the U.S. military specification(known as Mil-SPEC). Typical specifications for primer materials for military application are MIL-P-23377 and MIL-P-53022. And for topcoat, coating material of KDS 8010-1004 specification is typically applied. However, as MIL-P-23377 or MIL-P-530224 is applied for primer coating not only on the tank and armored vehicle at system level but also on the sub-components of these equipments, there has been a need for test data for determining the feasibility of alternatively applying either of these two coatings for primer coat. Therefore, in this study, coating characteristics are compared with respect to these two different primer coating materials so that the feasibility of alternatively applying them is investigated.
4,000원
24.
2016.04
구독 인증기관 무료, 개인회원 유료
Wire rods having various sectional shape are generally used directly in various applications. In the shape rolling, a couple of grooved rollers are used and the groove match the sectional shape of the wire rod. In this 2 roll system, a couple of rollers must be changed whenever the sectional shape of the wire rod is changed, and the frequent changes of roller cause rise of manufacturing cost. In this study, in order to apply a highly precise 4 roll rolling mill developed in previous studies on the shape rolling manufacturing process, the raw wire feeding equipment, 2 roll rolling mill, turks Head rolling mill, large heat treatment equipment, a steam cleaning equipment, a large winding equipment, cooling equipment, a tension adjustment equipment, designed and manufactured to the main control system. In addition, the problems corrected throughout these various equipments for manufacturing high-precision automatic rolling mill system developed by assembling more than six months and was conducted between complementary and testing process.
4,000원
1
2
