• 제목/요약/키워드: Aerial fire firefighting

검색결과 2건 처리시간 0.015초

헬기에 의한 산불공중간접진화 방법에 관한 연구 (Study of Indirect Attack Method of Aerial Fire Firefighting by Helicopter on Forest Fire)

  • 배택훈;최연철
    • 한국항공운항학회지
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    • 제24권3호
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    • pp.55-61
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    • 2016
  • Among the method of aerial fire firefighting, the indirect attack is efficiency way to protect main facilities and it is the aerial fire line construction. According to this study is suggested the fire line construction strategy of indirect attack by helicopter suitable Korea forest fire on theory consideration of indirect attack and experience in practical scene. This study defined that main key points of the fire line construction are accuracy, large quantity, and quickness. Main protection facilities are devided as caution area, warning area, danger area and concern area. Also, it suggested stage-by-stsge from 1 step to 3 step for the aerial fire firefighting correspondence strategy and the fire line construction model. I regard that this study's indirect attack method of the aerial fire firefighting of the fire line construction may be understand about indirect attack tactics and application of indirect attack which is assistance to raise of capability of the aerial fire firefighting with effectiveness and efficiency.

과하중 상태에 있는 복합 굴절차의 구조 해석 (Structural Analysis of Overloaded Multi-aerial Platform)

  • 소수현;강성수
    • 한국생산제조학회지
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    • 제22권6호
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    • pp.901-907
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    • 2013
  • The development of high-rise firefighting vehicles warrants thorough structural analysis for ensuring vehicle stability. A few structural analyses were carried out using CAD data, material properties, load conditions, and boundary conditions for evaluating the structural stability of an overloaded multi-aerial platform for firefighting and rescue. Structural analysis was performed with an analytical model consisting of a turntable, six booms, two jib booms, and a basket structure. This model was operated in eight modes. All simulation was performed using NASTRAN, a commercial code. As a result, we confirm that the position of local stress exceeds that of the yield strength. Therefore, stress concentration relaxation is possible by introducing reinforcing boom structures, changing the shape, or imparting a larger moment of inertia to the booms' cross sections.