Abstract
The unique properties of advanced composite materials make it an ideal material for aircraft manufacturing. The processing research of composite materials has received extensive attention at home and abroad. The structure and shape of typical rib parts are analyzed, and a trimming fixture is designed to ensure that it can be applied to parts of different specifications, while ensuring easy use, making the fixture universal, convenient and economical.
Highlights
Advanced composite materials are used to process the aircraft's main bearing structure and secondary bearing structure, and their rigidity and strength are equivalent to or exceed that of aluminum alloy
Advanced composite materials came out in the 1970s, and their research and application can be roughly divided into four stages
Different from the military aircraft, the civil aircraft has gone through a long period of time from the third stage to the fourth stage
Summary
Advanced composite materials are used to process the aircraft's main bearing structure and secondary bearing structure, and their rigidity and strength are equivalent to or exceed that of aluminum alloy. At present, it is widely used in the manufacture of aircraft fuselage structures and the overall structure of small UAVs[1]. The third stage: parts with greater stress, including flat tails, vertical tails, etc., take the Boeing 777 as an example, using 9.9 tons of composite materials, accounting for 11% of the total weight of the structure. Main application parts: flat tail, vertical tail, flaps, ailerons, fuselage floor beams, cabin doors, etc. A lot of research work has been carried out in the field, and certain results have been achieved
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