• Title/Summary/Keyword: HHI(Hyundai Heavy Industries Co.)

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LOADOUT DEVELOPMENT BY F.E. ANALYSIS METHODOLOGY FOR SIMILAR 300K VLCC SIZE FSO

  • Yang, Y.T.;Kang, H.S.
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2002.10a
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    • pp.51-55
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    • 2002
  • End of July. 2002 Hyundai Heavy Industries Co. Ltd. Offshore Division is successfully completed Load-out & Float-off work of "AMENAM KPONO/FSO Project" similar to 300K VLCC size. The AMENAM FSO hull and topside module built at the HHI Offshore yard using "On-Ground Building Method" developed by HHI. Various methodologies/techniques like Flexi-built FPSO Hull. Topside module erection method. Load-out Float-off methodology etc. are combined to develop a successful on-ground building method. In this paper, we described the "Hull Structural Strength Analysis Methodology" using 3-D Finite Element Analysis and results. This analysis is performed to verily the structural integrity or the AMENAM FSO hull during the main load-out on two semi-submersible barges combined together.

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CFD Analysis of 72.5kV${\sim}$800kV GIS with Moving Grid (이동격자를 이용한 72.5kV${\sim}$800kv 초고압 차단기 유동해석)

  • Yoon, J.H.;Choi, B.H.;Lee, K.H.;Yoon, C.Y.;Koh, K.S.;Min, B.S.;Park, I.S.
    • Proceedings of the KIEE Conference
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    • 2002.07b
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    • pp.799-801
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    • 2002
  • To develop GIS (Gas Insulated Switchgear), prediction of the flow field including pressure in GIS is very important. The transport phenomena in GIS including arc is also being studied in these days. In this study, to predict the arc behaviour for GIS with voltage rating up to 800kV developed by HHI (Hyundai Heavy Industries Co. Ltd.), the analysis of flow and electric field in GIS were investigated. To simulate the compressible flow in GIS, the CFX, commercial CFD code, was used. The movement of the piston and the electrode of the GIS was simulated with moving grid method, which was superior to the method of varying the property of cells in the aspect of accuracy and convergence of solution. The calculated maximum pressure within the puffer cylinder was matched with experimental data within 5% error. Also, the oscillation of pressure in GIS after the movement of electrode was well predicted.

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Development and Evaluation of Epoxy VPI Insulation for High Voltage Rotating Stator Windings (고압회전기 권선용 에폭시 VPI 절연물의 개발과 평가)

  • Lee, Chang-Ryong;Choi, Yong-Chan
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2003.05d
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    • pp.38-42
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    • 2003
  • The use of VPI impregnated mica tape as high voltage insulation for large rotating electric machines requires a careful balance of processes and materials to obtain the desired electrical, mechanical and thermal characteristics. The stator insulation systems such as epoxy bonded high voltage mica tape have been produced for many years. One such system employing an epoxy and anhydride impregnating resin developed by Hyundai Heavy Industries, Co. (hereafter, HHI), to satisfy customer requests for an epoxy bonded insulation system. HHI applies the following electrical and thermal evaluations such as dielectric breakdown, voltage endurance, dissipation factor vs. temperature, isothermal weight loss, and so on. A detailed laboratory evaluation can describe specific physical limitations for an insulation system and permit development of long-term operation guidelines that permit full utilization of the proposed system. HHI has found these evaluations very helpful in qualifying insulation system for the repair of both large motors and generators.

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Time domain simulation for icebreaking and turning capability of bow-first icebreaking models in level ice

  • Ko, Donghyeong;Park, Kyung-Duk;Ahn, Kyoungsoo
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.8 no.3
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    • pp.228-234
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    • 2016
  • Recent icebreaking ships need to be designed to enhance not only icebreaking capability but also turning ability. For the evaluation of ice resistance induced by an icebreaking hull form, HHI (Hyundai Heavy Industries) has developed the hybrid empirical formulas (Park et al., 2015) by considering the geometrical hull shape features, such as waterline and underwater sections. However, the empirical formulas have inherent limits to the precise estimation of the icebreaking and turning ability because the breaking process and the resulting pattern are ignored. For this reason, numerical calculation in time domain is performed to predict the icebreaking process and pattern. In the simulation, varying crushing stress according to velocity vectors and contact areas between hull and ice is newly introduced. Moreover, the simulation results were verified by comparing them with the model test results for three different bow-first icebreaking models.

Analysis on the increasing loss in Temperature rise test of induction motor by equivalent load method (등가부하법에 따른 유도기 온도상승 시험시 발생 증분 손실 해석)

  • Park, J.T.;Lee, J.I.;Kim, K.O.;Kwon, J.L.;Kwon, B.H.
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.1045-1046
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    • 2007
  • As equivalent load method of induction motor, even without connecting load, for temperature rise test has been acknowledged economic and corrective method, the method has been widely used instead of the real load method, and also international standards IEC 61986 is published in 2002. ABB, an well-known and famous electric machinery maker in the world, has been already applying the equivalent load method since 2002. HHI has been using real load method and equivalent load method for temperature rise of induction motor, it is already known that the equivalent test results is higher as $1-5^{\circ}K$ than that of real load test. But, quantity analysis for the reason of the temperature rise is not satisfied sufficiently. So, in this paper, quality analysis and also quantity analysis was conducted.

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The Harmonic Loss Analysis for Inverter Driven Large Induction Motor (대용량 인버터 구동 전동기 고조파 손실해석)

  • Lee, J.L.;Park, J.T.;Kwon, B.H.
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.1047-1048
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    • 2007
  • In this paper, the harmonic loss of the inverter driven induction motor was analyzed. It was analyzed through the theoretical consideration on the variations of equivalent circuit constants, and harmonic losses, including the effects of resistance increase and inductance decrease of stator, not through the general method that considering just the effects of the harmonic losses of only the rotor. It was verified by comparing the harmonic analysis results with the test results for HHI's inverter driven motor.

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The Critical Success Factors of the Innovation and Strategy Using Information Technology : Case Study of Hyundai Heavy Industries Co. (정보기술(IT)을 활용한 기업의 혁신 추진 전략과 핵심성공요인 도출 : 현대중공업의 성공사례를 중심으로)

  • Kim, Wha Young
    • Journal of Information Technology Services
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    • v.11 no.4
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    • pp.87-105
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    • 2012
  • The purpose of this case study is to demonstrate the effectiveness of the disruptive innovation strategy based on the Resources Process Values(RPV) theory for a successful firm. Disruptive innovations seemed not initially perform well enough to be sold or used successfully in markets. The products and services used disruptive technologies have not been as effective as those used in the established markets. However, they have other attributes such as simplicity, convenience, and low cost, which appeal to a new, small and initially unattractive set in new or low-end applications. The Hyundai Heavy Industries Co.(HHI) performed the Jubail Industrial Harbour Project(JIHP), which built the Open Sea Tanker Terminal(OSTT) in Saudi Arabia, using the disruptive innovation strategy in order to lower the manufacturing cost of the offshore jacket and to complete the project successfully. The HHI developed the design and drawing systems to manufacture the jacket and also developed the HYundai Jacket Analysis System(HYJAS) software to use the structural analysis against stresses from rolling and pitching of the barge while transporting the jacket by sea.

Ergonomics Risk-Assessment Methods in Shipbuilding: Application of OWAS Considering Work load and Frequency for Risk Factor Analysis of WMSDs

  • Lee, Jun-Youb;Seo, Hyun-Soo
    • Journal of the Ergonomics Society of Korea
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    • v.31 no.1
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    • pp.185-189
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    • 2012
  • Objective: The aim of this paper is to introduces Hyundai Heavy Industry's ergonomic risk assessment tool, H-OWAS, which is considering work load and frequency compared to the OWAS. Background: As prevalence of work-related musculoskeletal disorders(WMSDs) in ship building industries has been much higher than that in other industries, most of the large scaled corporations have implemented their own prevention program since legislation on the prevention of WMSDs had introduced in 2003. Method: This paper introduces WMSDs prevention program, HEMP(HHI Ergonomics Management Program) which consists of risk assessment, improvement efforts of working environments, medical treatment and training/evaluation and describes how to operate the program. We also describe application of OWAS method considering work load and frequency for risk factor analysis(H-OWAS) and shows methodology for assessing the ergonomic risk factor. And comparison of the assessment results between OWAS and H-OWAS is carried out by statistical analysis. Result: There was statistically significant difference in the assessment results between OWAS and H-OWAS, and regression shows H-OWAS explains the borg's scale of perceived exertion more clearly than OWAS. Conclusion: H-OWAS has been proved more effective tool than OWAS to evaluate ergonomic risk factor under real working condition. Application: H-OWAS can be widely applied to the many other companies when implementing the ergonomics risk assessment.

Dominant Design Technology Strategy Based on Open Innovation : High Skewed Propeller(HSP) Design and Production System of Hyundai Heavy Industries Co. (개방형 기술혁신 기반의 지배적 디자인 기술개발 및 확보 전략 : 현대중공업의 HSP(High Skewed Propeller) 설계 및 생산 시스템)

  • Ahn, Yeon S.;Kim, Wha Young
    • Journal of Information Technology Applications and Management
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    • v.25 no.1
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    • pp.1-17
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    • 2018
  • This study presents a research model that demonstrates the dominant design technology strategy for developing and securing dominant design technology based on open innovation. For this purpose, this study developed a strategic model for the development and acquisition of design technology, production technology, and production system of propeller which satisfies the requirements of ship propulsion system required by ship owners and shipbuilders. By studying large propellers for ships, it is possible to embody a strategic model that can be used as a technology development strategy of dominant design that is effective in technology field of other industries. In this study, HSP (High Skewed Propeller) strategy of Hyundai Heavy Industries, which occupies the largest global market share (47.5%, 2007) for more than 30 years until now, is analyzed as a successful case to verify this strategic model. The development and acquisition strategy model of dominant design technology presented in this study consists of four stages : dominant design project strategy, dominant design engineering technology strategy, dominant design production technology strategy, and dominant design production system strategy. The strategic model summarizes the key activities at each stage. In addition, the steps and core activities of this strategic model were confirmed through the case study. As a technology development strategy of HSP products, Hyundai Heavy Industries utilized open innovation technology to cooperate with outside, that is, collaborative research and development with KAIST (Korea Advanced Institute of Science and Technology) research team, and succeeded in achieving technology development of dominant design of HSP products by linking it with HSP technology development and acquisition strategy.

New Business Success using Strategic Innovation Strategy: Marine Engine Business and HEMAPT System of the Hyundai Heavy Industries Co. (신규사업성공과 전략적 기술혁신전략: 현대중공업의 엔진사업진출과 HEMAPT시스템 개발)

  • Kim, Wha Young
    • Journal of Service Research and Studies
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    • v.6 no.2
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    • pp.23-35
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    • 2016
  • Firms should seek greater profits and corporate growth through new businesses. New businesses contribute realizing creative economy that creates good jobs, and expanding the company by securing new markets and creating new profits and growth. However, new business is risky management decision-making to have a high failure rate because it involves the adaptation of new business environment and the burden of new investments, including the uncertainty of success in business. Therefore, innovation strategies play important roles for the new business entry, using product innovation, process innovation, business model innovation, disruptive innovation, and strategic innovation, etc. and company will get huge economic results by pushing them into successful business. It is essential that innovation strategy and IT development strategy along with business strategy of a firm are linked, and their strategic alignment is considered to be a critical success factor for new business success. Hyundai Heavy Industries(HHI) pursued marine engine business for the development of precision machinery industry and shipbuilding industry of Korea, and the company recognized the importance of new business strategy, innovation strategy, and IT strategy inter-linked, and pushed strategic alignment boldly. As a result, HHI won the competition in European and Japanese engine manufacturers and climbed into the world's largest engine manufacturer. This study suggests investigating and analyzing a case that HHI succeeded in marine engine business expansion using strategic innovation strategy as a way of the introduction of CNC machine tools and the development of HEMAPT system.