A method of manufactoring pipes from polymer composite materials for aircraft structures
Рубрика:
| 1Odaisky, SO, 1Potapov, OM, 2Fedorenko, SV, 1Shchudro, AP, 1Kulyk, AS 1Yangel Yuzhnoye State Design Office, Dnipro, Ukraine 2Dnipro Representative Office of the General Customer – State Space Agency of Ukraine, Dnipro, Ukraine |
| Space Sci. & Technol. 2020, 26 ;(5):022-027 |
| https://doi.org/10.15407/knit2020.05.022 |
| Язык публикации: Ukrainian |
Аннотация: The frame power structures are widely applied when designing aircraft, in which composite rod elements are used to reduce the mass and size characteristics. To solve the problem of manufacturing rod elements from polymer composite materials, we developed a technology for the manufacture of carbon fiber pipes using an existing machine for winding carbon fiber, which provides the necessary strength and rigidity mainly in the longitudinal direction.When calculating the rod elements, all the loads that will affect the structure as well as the coefficient of thermal expansion should be taken into account. To achieve the required physical, mechanical, and thermophysical characteristics, the optimal scheme of reinforcement is the scheme with a quasi-longitudinal direction of the fibers.
We developed the method of manufacturing based on the technology allowing us to obtain a reinforcement scheme with fiber orientation in the quasi-longitudinal direction with a reinforcement angle of about 1° by a combined method of layer-by-layer winding of carbon fiber. As a result of technological testing, we obtained samples of carbon fiber rod elements, which were used to confirm the calculated characteristics.
To confirm the physico-mechanical and thermophysical characteristics, we determined the assessment of limit of strength and modulus of elasticity in bending, the limit of strength and modulus of elasticity in torsion, the limit of strength and modulus of elasticity in compression, and the coefficient of thermal expansion. The obtained characteristics of the dependences of the elasticity modulus of the pipe prototype material at the fibers’ orientation angle correlate with theoretical calculations.
The presented method has the patent UA 128613 U.
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| Ключевые слова: carbon plastic, diagram of reinforcement, pipe, rod elements, winding the carbon fiber |
References:
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4. Pat. RU 2415329 of the Russian Federation IPC F16L9 / 12 “A method of manufacturing a pipe from composite materials” [Electronic resource]: Kapustin A. S., Ferulenko A. V., Sekhin V. A. and others., stated. 06/19/2009, published. 03/27/2011. URL: https://yandex.ru/patents/doc/RU2415329C2_20110327 (Last accessed: 06.08.2019).
5. Pat. RU 2075389 of the Russian Federation “A method of manufacturing a pipe from a composite material and a pipe manufactured by this method” [Electronic resource]: Yaakov V. P., Rozhkov V. B., Plotnikov V. I. and others., stated. 12/02/1993, publ. 03/20/1997. URL: https://yandex.ru/patents/doc/RU2075389C1_19970320 (Last accessed: 06.08.2019).
2. Kovalenko V. A., Malkov I. V., Syrova G. V., Sochach Yu. V. (2011). Study of thermal stability of spacecraft truss structures. Kharkov: National Aerospace University.
3. Malkov I. V. (2001). The scientific basis of the technology of shaping the winding of carbon-fiber plastic elements of spacecraft trusses: dis. ... Dr. of technical Sciences.
4. Pat. RU 2415329 of the Russian Federation IPC F16L9 / 12 “A method of manufacturing a pipe from composite materials” [Electronic resource]: Kapustin A. S., Ferulenko A. V., Sekhin V. A. and others., stated. 06/19/2009, published. 03/27/2011. URL: https://yandex.ru/patents/doc/RU2415329C2_20110327 (Last accessed: 06.08.2019).
5. Pat. RU 2075389 of the Russian Federation “A method of manufacturing a pipe from a composite material and a pipe manufactured by this method” [Electronic resource]: Yaakov V. P., Rozhkov V. B., Plotnikov V. I. and others., stated. 12/02/1993, publ. 03/20/1997. URL: https://yandex.ru/patents/doc/RU2075389C1_19970320 (Last accessed: 06.08.2019).