The roles of wrinkle structures in the veins of Asian Ladybird and bioinspiration

Song, Zhilong; Yan, Yongwei; Wu, Wei; Jin, Tao; Sun, Jiyu

doi:10.1101/2020.01.02.893388

Cited by 1 publication

(3 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To analyze the nanomechanical properties of the veins of the hind wing using the ANSYS software, different veins with either different reduced moduli or the same average reduced modulus were considered to be the same material. The average reduced modulus of the wing membrane was 0.90 ± 0.05 GPa 41 . The average reduced modulus of the veins was 5.17 GPa.…”

Section: Resultsmentioning

confidence: 96%

See 2 more Smart Citations

Effects of pterostigma structure on vibrational characteristics during flight of Asian ladybird Harmonia axyridis (Coleoptera: Coccinellidae)

Song

Tong

Yan

et al. 2020

Sci Rep

View full text Add to dashboard Cite

The hind wings of beetles are deployable and play an essential role in flight. In the Asian ladybird Harmonia axyridis (Coleoptera: Coccinellidae), the pterostigma (pst) is found in the middle of the hind wing instead of at the tip of the hind wing. This paper investigates the effect of the pst on the vibrational characteristics during the flight of H. axyridis. Based on cross sections of the pst and veins as well as the morphology and nanomechanical properties of the hind wing, including the wing membrane and veins, three three-dimensional coupling models, Models I-III, of hind wings with/ without pst structures and veins with varying or uniform reduced moduli are established. Modal analysis results for these three models show that the vibrational characteristics and deformation tendencies change the flight performance of the hind wing models with pst structures compared with that of the other models. The results in this paper reveal that the pst structure has an important influence on vibrational characteristics and deformation tendencies and, hence, on flight performance; the relationships between the body mass and the area of the hind wing, which have significant implications for the design of biomimetic deployable wing structures for micro air vehicles (MAVs), are also analyzed. The aim of this paper is to investigate the relationship between the body mass and hind wing area and the function of the pterostigma of the hind wing of a selected beetle species. In insect-inspired flapping-wing micro air vehicles (FW-MAVs), researchers are constantly striving for more lightweight and miniaturized designs 1,2. The multifunctional structures of dragonfly wings have inspired the bionics of micro air vehicles (MAVs) 3,4. MAVs based on birds whose wing span is reduced to 15% with a wing-folding mechanism have also been designed 5. Harmonia axyridis is a lightweight insect whose deployable hind wing can fold to an area reduction ratio of 2 6,7. The folding mechanism of the hind wings of beetles can serve as useful inspiration for the design of deployable wings for MAVs with reduced sizes 5,7. Therefore, for the design of smaller MAVs, research into deployable wings is meaningful. Different wing geometries have distinct kinematics under varying flow conditions 8. The complex, deformable structural shapes and material characteristics of insect wings change continuously during flight, which is powered by flight muscles 9,10. Various angles of attack, wingtip trace patterns, wing areas and complex adjustments to feather orientation can be combined to enable advanced flight capabilities 11-13. In the design of MAV wings, the relationships between wing length, wing area and body weight should be considered 14. To design an MAV that can generate the maximum thrust and lift with the minimum body weight, it is necessary to assess the dependence of the lift and thrust on the wing shape and area 15. With increasing flight speed, the wing-beat amplitude, wing-beat duration, wing-beat frequency, and angle of attack of the wings and ...

show abstract

Section: Resultsmentioning

confidence: 96%

“…The material properties of the veins were set based on the results of nanoindentation tests (our previous work 41 ). In Model I (Fig.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of pterostigma structure on vibrational characteristics during flight of Asian ladybird Harmonia axyridis (Coleoptera: Coccinellidae)

Song

Tong

Yan

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

The roles of wrinkle structures in the veins of Asian Ladybird and bioinspiration

Cited by 1 publication

References 53 publications

Effects of pterostigma structure on vibrational characteristics during flight of Asian ladybird Harmonia axyridis (Coleoptera: Coccinellidae)

Effects of pterostigma structure on vibrational characteristics during flight of Asian ladybird Harmonia axyridis (Coleoptera: Coccinellidae)

Contact Info

Product

Resources

About