• Title/Summary/Keyword: Elevator Size Decision

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Determination of Cage Size in Case of Non-Standard Well Size in Lift Industry (승강기 산업의 비표준 승강로에 대응하는 승강기 크기 결정 방법 연구)

  • Ko, Young-joon;Kim, Byoung-ik;Han, Kwan Hee
    • Journal of Convergence for Information Technology
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    • v.9 no.2
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    • pp.85-93
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    • 2019
  • There is currently no recognized standard for the size of lifts. Each elevator manufacturer sets the maximum allowable floor area that meets the capacity calculation standard of the elevator using the maximum used car floor area, which is defined by EN-CODE and the domestic inspection standard, and determines the elevator size based on their own standards. In this paper, we propose a method to more easily determine the elevator size. To do this, we implemented a program that calculates the size of the elevator by inputting the dimensions of the hoistway. This program will be useful method for quick decision making and elevator installation considering the elevator factors according to the already determined hoistway size of the building and calculating the EN-CODE currently used and the size of the elevator according to domestic inspection standards.

Wind Tunnel Test to Enhance Aerodynamic Characteristics of Forward Swept Wing Airplane (전진익형 항공기 공력특성 증진을 위한 풍동시험)

  • Chung, Jin-Deog;Lee, Jang-Yeon;Sung, Bong-Zoo;Lee, Jong-Won
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.28 no.7
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    • pp.800-808
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    • 2004
  • Wind tunnel test of an airplane model with forward swept wing was done in KARI LSWT to evaluate and measure the aerodynamic characteristics of initially designed configuration. Since the given wing planform did not fully satisfy the design requirements, local flow control devices such as vortilon, vortex generator and flow fence were used to delay separation and to enhance aerodynamic characteristics. Also decision making processes of design parameters such as vertical tail boom length, the location, size and the incidence angle of horizontal tail were discussed. The general aerodynamic characteristics of forward swept wing for various control surface deflection conditions of flap, aileron and elevator were also given.