هيكل طائرة
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The mechanical structure of an aircraft is known as the airframe. This structure is typically considered to include the fuselage, undercarriage, empennage and wings, and exclude the propulsion system.[1]
Airframe design is a field of aerospace engineering that combines aerodynamics, materials technology and manufacturing methods with a focus on weight, strength and aerodynamic drag, as well as reliability and cost.
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التاريخ
Modern airframe history began in the United States when a 1903 wood biplane made by Orville and Wilbur Wright showed the potential of fixed-wing designs.
العصر الحديث
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Material | B747 | B767 | B757 | B777 | B787 | A300B4 |
---|---|---|---|---|---|---|
Aluminium | 81% | 80% | 78% | 70% | 20% | 77% |
Steel | 13% | 14% | 12% | 11% | 10% | 12% |
Titanium | 4% | 2% | 6% | 7% | 15% | 4% |
Composites | 1% | 3% | 3% | 11% | 50% | 4% |
Other | 1% | 1% | 1% | 1% | 5% | 3% |
السلامة
انظر أيضاً
المراجع
- ^ "FAA Definitions". Retrieved 2020-04-30.
- ^ Jörg Woidasky; Christian Klinke; Sebastian Jeanvré (November 2017). "Materials Stock of the Civilian Aircraft Fleet" (PDF). Recycling.
للاستزادة
- Michael Gubisch (9 July 2018). "Analysis: Are composite airframes feasible for narrowbodies?". Flightglobal.