Production process of composite propeller for multirotor UAV
Abstract
The application of composite materials in the aerospace industry has begun since the middle of the 20th century. Their use in various elements of aircraft constructions has extended over time. Primary load carrying elements of some aircraft constructions are made of composite materials due to their excellent mechanical properties as well as the good strength-to-weight ratio. Propellers and fan blades of jet engines are increasingly made of high-quality composite materials. Besides the mechanical properties of the material, production technology has a great impact on composite structure quality.
The production process of two-bladed composite propeller is presented in this paper. Manufacturing of composite propeller for multirotor UAV application with suitable technology and relatively cheap materials is the main motive of this work. According to this motive, both (upper and lower) shells of the propeller are made of balanced plain weave glass fiber with epoxy matrix. The vacuum infusio...n process is used for shell manufacturing. After the polymerization process of shells (24h, 25°C), unidirectional carbon fabric reinforcements in the root zone and expanding polyurethane core are added during the bonding process. Then, the bonded propeller was cured 4h at 70°C.
The high production process quality of the two-bladed propeller with the previously described technology is partly confirmed in this paper. Namely, the checking of propeller geometry and comparison with the CAD model was performed. Results of that comparison showed that a high degree of agreement between produced and CAD model was obtained. Comparison of static test and numerical structural analysis could be subjects of future work. That would provide the final validation of manufacturing technology quality which is described in this paper.
Keywords:
Propeller / Composite materials / UAV / ManufacturingSource:
The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH, 2021, 65-Publisher:
- Belgrade : Innovation Center of Faculty of Mechanical Engineering
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Kovačević, Aleksandar AU - Svorcan, Jelena AU - Ivanov, Toni PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4259 AB - The application of composite materials in the aerospace industry has begun since the middle of the 20th century. Their use in various elements of aircraft constructions has extended over time. Primary load carrying elements of some aircraft constructions are made of composite materials due to their excellent mechanical properties as well as the good strength-to-weight ratio. Propellers and fan blades of jet engines are increasingly made of high-quality composite materials. Besides the mechanical properties of the material, production technology has a great impact on composite structure quality. The production process of two-bladed composite propeller is presented in this paper. Manufacturing of composite propeller for multirotor UAV application with suitable technology and relatively cheap materials is the main motive of this work. According to this motive, both (upper and lower) shells of the propeller are made of balanced plain weave glass fiber with epoxy matrix. The vacuum infusion process is used for shell manufacturing. After the polymerization process of shells (24h, 25°C), unidirectional carbon fabric reinforcements in the root zone and expanding polyurethane core are added during the bonding process. Then, the bonded propeller was cured 4h at 70°C. The high production process quality of the two-bladed propeller with the previously described technology is partly confirmed in this paper. Namely, the checking of propeller geometry and comparison with the CAD model was performed. Results of that comparison showed that a high degree of agreement between produced and CAD model was obtained. Comparison of static test and numerical structural analysis could be subjects of future work. That would provide the final validation of manufacturing technology quality which is described in this paper. PB - Belgrade : Innovation Center of Faculty of Mechanical Engineering C3 - The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH T1 - Production process of composite propeller for multirotor UAV SP - 65 UR - https://hdl.handle.net/21.15107/rcub_machinery_4259 ER -
@conference{ author = "Kovačević, Aleksandar and Svorcan, Jelena and Ivanov, Toni", year = "2021", abstract = "The application of composite materials in the aerospace industry has begun since the middle of the 20th century. Their use in various elements of aircraft constructions has extended over time. Primary load carrying elements of some aircraft constructions are made of composite materials due to their excellent mechanical properties as well as the good strength-to-weight ratio. Propellers and fan blades of jet engines are increasingly made of high-quality composite materials. Besides the mechanical properties of the material, production technology has a great impact on composite structure quality. The production process of two-bladed composite propeller is presented in this paper. Manufacturing of composite propeller for multirotor UAV application with suitable technology and relatively cheap materials is the main motive of this work. According to this motive, both (upper and lower) shells of the propeller are made of balanced plain weave glass fiber with epoxy matrix. The vacuum infusion process is used for shell manufacturing. After the polymerization process of shells (24h, 25°C), unidirectional carbon fabric reinforcements in the root zone and expanding polyurethane core are added during the bonding process. Then, the bonded propeller was cured 4h at 70°C. The high production process quality of the two-bladed propeller with the previously described technology is partly confirmed in this paper. Namely, the checking of propeller geometry and comparison with the CAD model was performed. Results of that comparison showed that a high degree of agreement between produced and CAD model was obtained. Comparison of static test and numerical structural analysis could be subjects of future work. That would provide the final validation of manufacturing technology quality which is described in this paper.", publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering", journal = "The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH", title = "Production process of composite propeller for multirotor UAV", pages = "65", url = "https://hdl.handle.net/21.15107/rcub_machinery_4259" }
Kovačević, A., Svorcan, J.,& Ivanov, T.. (2021). Production process of composite propeller for multirotor UAV. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH Belgrade : Innovation Center of Faculty of Mechanical Engineering., 65. https://hdl.handle.net/21.15107/rcub_machinery_4259
Kovačević A, Svorcan J, Ivanov T. Production process of composite propeller for multirotor UAV. in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH. 2021;:65. https://hdl.handle.net/21.15107/rcub_machinery_4259 .
Kovačević, Aleksandar, Svorcan, Jelena, Ivanov, Toni, "Production process of composite propeller for multirotor UAV" in The Book of Abstracts - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH (2021):65, https://hdl.handle.net/21.15107/rcub_machinery_4259 .