هيكل طائرة
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
.PNG)
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
| 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.