DESIGN, ACOUSTIC PERFORMANCE AND ADDITIVE MANUFACTURING OF HELICOPTER ROTOR BLADES WITH UNCONVENTIONAL SHAPES

Authors

  • Gabriela Alexandra Badicu Transilvania University of Brasov
  • Sebastian Marian Zaharia Transilvania University of Brasov
  • Mihai Alin Pop Transilvania University of Brasov

Keywords:

design, additive manufacturing, helicopter rotor blade, acoustic performance, CFD analysis

Abstract

In this paper, a blade with unconventional structure, corrugations and BERP tip, used in UAV helicopters, was designed, analyzed and additively manufactured. Aerodynamically, the unconventional blade shows better performance compared to the conventional blade at positive angles of attack. Acoustically, the unconventional blade showed a reduced noise level compared to the conventional blade. Acoustic testing of additively manufactured samples with five honeycomb core configurations showed higher performance for the 1.5 mm honeycomb cell samples 3D printed from T-PLA.

References

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Published

2023-09-30

Issue

Vol. 27 No. 3 (2023): Nonconventional Technologies Review

Section

Articles

How to Cite

DESIGN, ACOUSTIC PERFORMANCE AND ADDITIVE MANUFACTURING OF HELICOPTER ROTOR BLADES WITH UNCONVENTIONAL SHAPES. (2023). Nonconventional Technologies Review, 27(3). http://revtn.ro/index.php/revtn/article/view/431

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