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RISS 인기검색어
- 검색키워드
- 저자 : 신대영(D. Y. Shin) (검색결과 38 건)
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신대영(D. Y. Shin),전형호(H. H. Chun) 유공압건설기계학회 2021 유공압건설기계학회 학술대회논문집 Vol.2021 No.7
The global mining market is building autonomous, unmanned, eco-friendly mining sites (zero-entry mining) to increase productivity, reduce costs, strengthen safety, and improve environmental burden. Although global top teer companies have entered the "Mixed-mode autonomous operation", Korean companies are in the stage of entering or proceeding with the "Lunch of autonomous mining programs". The world mining equipment is active in the technology development of eco-friendly autonomous technology and smart mining system that converge ICT technology, big data, AI, and IoT in order to build an unmanned eco-friendly mining site. In this case study, technological innovation of eco-friendly autonomous technology and smart mining system were studied. As a result of the case study, the development and the demonstration of smart mining machinery based on eco-friendly power sources (electricity/battery, hydrogen)”, the development of a smart mining platform in cooperation with industry-university-research institutes, and active M&A is necessary.
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굴삭기에서 가공편차가 버켓의 움직임에 미치는 영향에 관한 연구
신대영(D. Y. Shin) 유공압건설기계학회 2018 유공압건설기계학회 학술대회논문집 Vol.2018 No.6
세계 건설기계 산업의 패러다임은 지속적으로 변화하고 있다. 2010년도 초반에는 고유가의 영향으로 하이브리드 또는 전기식 건설기계가 이슈가 되더니 2015년 이후에는 스마트기술이 채택한 반자율/자율건설기계가 개발 중심에 서있다. 건설기계의 대표 기종인 굴삭기도 특정 작업에 대해 반자동화와 완전자동화가 가능한 MC(machine control)기술을 개발하고 있다. 일반적으로 굴삭 작업은 붐 실린더와 암 실린더와 버켓 실린더의 변위와 힘이 붐과 암 그리고 버켓을 통하여 최종적으로 버켓 끝단에서 특정 작업을 하게 된다. 문제는 붐과 암 그리고 버켓을 가공한 후에 가공치수를 측정하면 항상 가공편차 편차가 존재한다. 각 실린더의 변위가 동일하더라도 붐과 암 그리고 버켓의 가공편차는 버켓 끝단의 자세가 상이하며 최악의 경우에는 특정 작업을 할 수 없을 정도로 버켓 끝단의 자세가 불량할 수 있다. 본 연구에서는 도랑 작업에서 붐과 암 그리고 버켓의 가공편차에 따른 버켓 끝단의 자세를 통계적으로 분석하였다. 향후에 정밀작업이 가능한 굴삭기에서 통계적 분석을 바탕으로 설계인자의 공차를 결정하는데 도움이 될 수 있다.
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신대영(D. Y. Shin),조민기(M. G. Cho) 유공압건설기계학회 2010 유공압건설기계학회 학술대회논문집 Vol.2010 No.10
In this study I conducted practical experiment to secure the reliability of result obtained through the analysis of hydraulic system in mini loader. Analysis and practical experiment comparison for hydraulic system in mini loader was based upon pressure and flow characteristics in response to boom movement under the same condition. The result shows correspondence of experiment and analysis result. So, I verified the validity of analysis result for the characteristics of mini loader movement in this study.
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신대영(D. Y. Shin),박철규(C. G. Park),정철오(C. O. Jung) 유공압건설기계학회 2018 유공압건설기계학회 학술대회논문집 Vol.2018 No.11
The development of ICT technology led to the intelligence of machines and components, and the development of intelligence information technology connects the world and equipment online. This paper analyzed the effective patent registered since 1997 to analyze the technology trend of autonomous technology of construction machinery. The technical classification was divided into a machine control technology, a machine guidance technology and a monitoring & management technology, and then each technical classification was divided into 5-7 kinds of the detailed technology. Patent analysis was conducted by period or country or company. As a result of the patent analysis, the number of patents has continuously increased since 2008. Overall, USA and Japan are leading the technology of autonomous construction machinery. However, the company and patent applicants are active in patent applications in the Chinese since 2008. From the viewpoint of technological growth stage, Korea, USA and China are in the growth period, and Japan and Europe are declining.
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신대영(D. Y. Shin),서동진(D. J. Seo),윤주섭(J. S. Yun),장주섭(J. S. Jang),오주영(J. Y. Oh),최병운(B. Y. Choi) 유공압건설기계학회 2014 유공압건설기계학회 학술대회논문집 Vol.2014 No.9
This study is on problem of jamming gears, which is one of the most degrading factors in hydraulic motor performance. The phenomenon of gear sticking to the inside of a hydraulic motor housing was mathematically modeled as quantitative value of wear, and then structural analysis according to the geometric shape of the motor was performed as an analysis. Also in order to improve the manufacturing quality, a method was proposed to lower the defect rate by statistically analyzing the manufacturing process for parts exposed to wear. The analysis showed that 62.6% of parts hydraulic motor were exposed to wear. For the future, optimization of dimensions, addition of clearance values, and improvement of manufacturing process should be further studies in order to minimize wear and increase the mechanical efficiency.
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굴삭기 상부작업체에서 틈새의 영향을 고려한 버켓의 거동의 편차에 대한 연구
신대영(D. Y. Shin),강태곤(T. G. Kang),황성호(S. H. Hwang) 유공압건설기계학회 2018 유공압건설기계학회 학술대회논문집 Vol.2018 No.11
The excavator consists of boom, arm and bucket, and the boom, arm and bucket are driven by hydraulic cylinder. The clearance of the upper part of the excavator reflects the clearance of the joint part of the hydraulic cylinder and compares the angles of the joint parts and studies the deviation of the bucket behavior due to the clearance of the joint. As the clearance of the joint increases, the angle of rotation of the joint increases, this ultimately affects the deviation of the bucket behavior.
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