• Title/Summary/Keyword: cargo container

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The Effect of Fleet-Angle on Sway Motions of a Cargo: Compatibility and Bifurcation Conditions (화물과 트롤리가 만드는 로프각이 화물의 진자운동에 미치는 영향: 적합조건과 분기조건)

  • SHIN JANG-RYONG;GOH SUNG-HEE;HONG KYUNG-TAE;HONG KEUM-SHIK
    • Journal of Ocean Engineering and Technology
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    • v.19 no.2 s.63
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    • pp.60-66
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    • 2005
  • This paper investigates the relationship between the fleet-angle of the hoisting rope and the swaying and pitching angles of a cargo in container cranes. It is found that for a given disturbance, when the fleet-angle is large, the sway Angle becomes smaller, but the pitching angle becomes larger. Therefore, for a quick suppression of a sway motion, it is desirable to have a large fleet-angle. The compatibility and bifurcation conditions, regarding instability, are characterized.

Data Acquisition System Design and Implementation of Cargo System Using a Large Output X-ray (고출력 X-선을 이용한 대형화물 검색시스템의 Data Acquisition System 설계 및 구현)

  • Yoo, Sun-Won;Kim, In-Su;Kim, Bong-Su;Yi, Yun
    • Proceedings of the IEEK Conference
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    • 2002.06e
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    • pp.223-226
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    • 2002
  • Data Acquisition System of Cargo System using a large output X-ray in harbors is usually composed of Detector, Analog Board, Digital Board, Master Board, Backplane Board and Image Construction System. In this paper we have made an image of material in container-box with Data Acquisition System and studied mainly a configuration method and principle to each part of Data acquisition system.

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Analysis of Impact Load for Optimum of Suspension Parameter of Yard AGV (야드형 AGV-서스펜션 파라미터의 최적화를 위한 충격하중 해석)

  • 홍도관;김재헌;안찬우;전언찬;김중완
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2002.11a
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    • pp.161-167
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    • 2002
  • Cai-go management facility of harbor are required an expansion due to increase of cargo quantity. Design technology of Yard AGV call be possible to deal many cargo rapidly and accurately. So it is produced a profit about cal-go management. This study is presented optimum of suspension parameter for design technology Yard AGV. Model I, II are modeled about Initial of container weight, height. When the maximum stroke of suspension is 0.26m, optimum is achieved to reduce the reaction force at the minimum. Also, the reaction force is study to become stability in I second. A change of spring constant and coefficient of damper make change the reaction force and minimum reaction force appear in optimum value. All modeling and analysis are used combination. contact element of Ansys program.

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A Study on Legal Argument to the Overstorage Charge on the Long Storage Containers (장기체화 화물에 대한 경과보관료 적용에 관한 법률쟁점 - 부산지방법원 2011. 8. 18. 2009가합14442 판결 평석 -)

  • Ji, SangGyu
    • Journal of Korea Port Economic Association
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    • v.28 no.4
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    • pp.275-298
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    • 2012
  • Terminal operators have provided special services such as loading, discharging, stowage of cargo to the owner, and carriers of the sea, which contribute the domestic and international logistics. For smooth flow of logistics, container terminal should reserve spaces for inbound and outbound logistics. However, if it is unable to provide the spaces, which can be caused by labour strikes or terminal lockouts and so on, national logistic system and financial management of terminal operators can be seriously affected. In order to minimize these kinds of problems, terminal operators impose high rate of charges ("overstorage charge") to the accumulated cargoes and/or containers, which are stipulated in terminal service agreement. Nevertheless, if there is no terminal service agreement with an owner of cargo and/or container, any kind of charge can cause legal problems (conflict ??) between the cargo and terminal operator. In this regard, I would like to study on the definition of overstorage charge and the legal issue of it based on the Busan district court's judgment. In particular, I will propose a special right of commercial lien and public auction for terminal operators to settle accumulated cargoes in container terminal.

A Trend Analysis on Export Container Volume Between Korea and East Asian Ports (우리나라와 동아시아 항만간의 수출 컨테이너 물동량 추이 분석)

  • Lee, Choong-Bae;Noh, Jin-Ho
    • Journal of Korea Port Economic Association
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    • v.34 no.2
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    • pp.97-114
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    • 2018
  • The East Asian region, an important part of Korea's imports and exports, is expected to grow further driven by the geographical, political, economic, social, and cultural complementarity. With the recent increase in imports and exports, the port trade volume between Korea and East Asian countries is also growing. However, due to various factors, such as economic size, growth rate, port infrastructure level, and geographical location of these countries, the volume of traffic with these ports is fluctuating. Despite much research on the volatility of port trade volume and changes in port network, this study tries to supplement the gap in a more detailed study of ports in Korea and East Asia since these kinds of studies are limited. The purpose of this study is to analyze the trend of distribution routes of export container cargo among ports in Korea and to present policy and practical implications of Korean trading companies, shipping companies, logistics companies, and port authorities. This study analyzes the variability of the trade volume between Korea's major ports and Daedong. Results show that Shanghai, Ningbo, Ho Chi Minh, and Haiphong were the most important factors in terms of size and volume increase. In terms of ports, the Busan port is the port responsible for trades with Yantai, Weihai, Hakata, Kobe, Ho Chi Minh, and Haiphong; Incheon port deals with Lianyungang, Tianjin, Osaka, Kobe, Ho Chi Minh, Haiphong; Gwangyang port trades with Tianjinxingang, Weihai, Yokohama, Mihn and Tanjong, and Ulsan port is strategically important for the Yantai, Lianyungang, Nagoya, Kobe, Ho Chi Minh and Portkelang ports. Therefore, the Korean government, port authorities, and shipping and logistics companies need to strengthen logistic network cooperation with these ports and actively promote investments in them.

Comparative Analysis on Competitiveness between Ports in Northeast Asia Employing Shift-share Analysis and DEA (변이할당기법과 DEA를 활용한 동북아시아 항만간 경쟁력 비교 분석)

  • Lee, Choongbae;Kwon, A Rim
    • Journal of Korea Port Economic Association
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    • v.30 no.4
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    • pp.219-254
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    • 2014
  • Due to the recent development of globalization and supply chain management, growth of international trade has led to increasing cargo volume around the world. Since maritime logistics environments have changed, increased container ship size, improvement of harbor equipment, global port operation and rapid technological development have had an significant effects on shipping and port industry, which is contributing to competitiveness of port. Since a larger volume of port throughputs are generally regarded as an indicator of the more competitive port, inefficient port operation could reduce its competitiveness. On the other hand, high efficient ports could increase their competitive power while increasing cargo volume. This study aims at comparing competitiveness of the ports in the Northeast Asia by investigating changes of container throughputs and evaluating efficiency performance of ports. Shift-Share analysis and Data Envelopment Analysis(DEA) have been conducted with 21 Northeast Asian ports and then separated them into 4 groups for comparative analysis to identify competitive position of each port. The results of this study show that Incheon and Gwangyang port have been decreased container cargo volume, while volume of Busan port would increase by means of active marketing, various route development and incentive policy for the port.

Effect of Supply Chain Risk on Port Container Throughput: Focusing on the Case of Busan Port (공급망 리스크가 항만 컨테이너 물동량에 미치는 영향에 관한 연구: 부산항 사례를 중심으로)

  • Kim, Sung-Ki;Kim, Chan-Ho
    • Journal of Korea Port Economic Association
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    • v.39 no.2
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    • pp.25-39
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    • 2023
  • As the scope of supply chains expands globally, unpredictable risks continue to arise. The occurrence of these supply chain risks affects port cargo throughput and hinders port operation. In order to examine the impact of global supply chain risks on port container throughput, this study conducted an empirical analysis on the impact of variables such as the Global Supply Chain Pressure Index (GSCPI), Shanghai Container Freight Index (SCFI), Industrial Production Index, and Retail Sales Index on port traffic using the vector autoregressive(VAR) model. As a result of the analysis, the rise in GSCPI causes a short-term decrease in the throughput of Busan Port, but after a certain point, it acts as a factor increasing the throughput and affects it in the form of a wave. In addition, the industrial production index and the retail sales index were found to have no statistically significant effect on the throughput of Busan Port. In the case of SCFI, the effect was almost similar to that of GSCPI. The results of this study reveal how risks affect port cargo throughput in a situation where supply chain risks are gradually increasing, providing many implications for establishing port operation policies for future supply chain risks.

Stabilization Controller Design of a Container Crane for High Productivity in Cargo Handling Using a RCGA (실수코딩유전알고리즘을 이용한 하역생산성 향상용 컨테이너 크레인의 안정화 제어기 설계)

  • Lee, Soo-Young;Ahn, Jong-Kap;Choi, Jae-Jun;Son, Jeong-Ki;Lee, Yun-Hyung;So, Myung-Ok
    • Journal of Navigation and Port Research
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    • v.31 no.6
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    • pp.515-521
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    • 2007
  • To increase the stevedore efficiency and service level at container terminal, it is essential to reduce working time of container crane which has a bottle neck in the logistic flow of container. The working speed and safety are required to be improved by controlling the movement of the trolley as quick as possible without big overshoot and any residual swing motion of container in the vicinity of target position. This paper presents optimal state feedback control using RCGAs in the case of existing constrained conditions

A Study on Decision-Making Model for Port Selection : Container Terminal's Perspectives (터미널 운영사 측면에서의 컨테이너 터미널 자동화 결정모형 연구)

  • You, Ji-Won;Kim, Yul-Seong
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2019.05a
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    • pp.138-139
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    • 2019
  • In the era of the 4th industrial revolution, automated technology innovation is emerging, and container terminals are being developed to introduce automation equipment and systems. With the advent of ultra-large vessels, terminals around the world are seeking to build port infrastructure by combining automated technology in order to attract more cargo and to enhance competitiveness to provide prompt service. To introduce automated technology that is emerging as a high-tech industry, this study proposes a structural equation model for the decision to introduce automated container terminal and conducts a questionnaire survey on workers engaged in terminal operators for empirical analysis. This paper presents the role and direction of guidelines for introduction of automated container terminal through decision model.

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A Study on the Prediction of Gate In-Out Truck Waiting Time in the Container Terminal (컨테이너 터미널 내 반출입 차량 대기시간 예측에 관한 연구)

  • Kim, Yeong-Il;Shin, Jae-Young;Park, Hyoung-Jun
    • Journal of Navigation and Port Research
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    • v.46 no.4
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    • pp.344-350
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    • 2022
  • Due to the increase in container cargo volume, the congestion of container terminals is increasing and the waiting time of gate in-out trucks has significantly lengthened at container yards and gates, resulting in severe inefficiency in gate in-out truck operations as well as port operations. To resolve this problem, the Busan Port Authority and terminal operator provide services such VBS, terminal congestion information, and expected operation processing time information. However, the visible effect remains insufficient, as it may differ from actual waiting time.. Thus, as basic data to resolve this problem, this study presents deep learning based average gate in-out truck waiting time prediction models, using container gate in-out information at Busan New Port. As a result of verifying the predictive rate through comparison with the actual average waiting time, it was confirmed that the proposed predictive models showed high predictive rate.