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26 results

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Page 1
Simulation-based insect-inspired flight systems.
Liu H. Liu H. Curr Opin Insect Sci. 2020 Dec;42:105-109. doi: 10.1016/j.cois.2020.10.001. Epub 2020 Oct 14. Curr Opin Insect Sci. 2020. PMID: 33068784 Review.
Insects power and control their flight by flapping their wings. By controlling their aerodynamic forces and torques, they can generate precise and agile aerial manoeuvres. ...Insect flights are diverse but robust relying on the integration of different flexible structures …
Insects power and control their flight by flapping their wings. By controlling their aerodynamic forces and torques, they can generat …
Elastic storage enables robustness of flapping wing dynamics.
Cai X, Xue Y, Kolomenskiy D, Xu R, Liu H. Cai X, et al. Bioinspir Biomim. 2022 May 24;17(4). doi: 10.1088/1748-3190/ac6c66. Bioinspir Biomim. 2022. PMID: 35504276
Here we propose a fluid-structure interaction model that couples unsteady flapping aerodynamics and three-torsional-spring-based elastic wing-hinge dynamics to determine passive and active mechanisms (PAM) in bumblebee hovering. The results show that a strategy of a …
Here we propose a fluid-structure interaction model that couples unsteady flapping aerodynamics and three-torsional-spring-based elas …
Scaling of the performance of insect-inspired passive-pitching flapping wings.
Sum Wu K, Nowak J, Breuer KS. Sum Wu K, et al. J R Soc Interface. 2019 Dec;16(161):20190609. doi: 10.1098/rsif.2019.0609. Epub 2019 Dec 18. J R Soc Interface. 2019. PMID: 31847758 Free PMC article.
Flapping flight using passive pitch regulation is a commonly used mode of thrust and lift generation in insects and has been widely emulated in flying vehicles because it allows for simple implementation of the complex kinematics associated with flapping wing system …
Flapping flight using passive pitch regulation is a commonly used mode of thrust and lift generation in insects and has been widely e …
Performance of passively pitching flapping wings in the presence of vertical inflows.
Mazharmanesh S, Stallard J, Medina A, Fisher A, Ando N, Tian FB, Young J, Ravi S. Mazharmanesh S, et al. Bioinspir Biomim. 2021 Jul 15;16(5). doi: 10.1088/1748-3190/ac0c60. Bioinspir Biomim. 2021. PMID: 34139680
The successful implementation of passively pitching flapping wings strongly depends on their ability to operate efficiently in wind disturbances. ...These results highlight the complex interactions between passively pitching flapping wings and freestream perturbatio …
The successful implementation of passively pitching flapping wings strongly depends on their ability to operate efficiently in wind d …
Flectofin: a hingeless flapping mechanism inspired by nature.
Lienhard J, Schleicher S, Poppinga S, Masselter T, Milwich M, Speck T, Knippers J. Lienhard J, et al. Bioinspir Biomim. 2011 Dec;6(4):045001. doi: 10.1088/1748-3182/6/4/045001. Epub 2011 Nov 29. Bioinspir Biomim. 2011. PMID: 22126741
Elastic deformation of the entire structure replaces the need for local hinges. This change becomes possible by using fibre-reinforced polymers (FRP) such as glass fibre reinforced polymer (GFRP) that can combine high tensile strength with low bending stiffness, thus offer …
Elastic deformation of the entire structure replaces the need for local hinges. This change becomes possible by using fibre-reinforce …
Thrust enhancement and degradation mechanisms due to self-induced vibrations in bio-inspired flying robots.
Deb D, Huang K, Verma A, Fouda M, Taha HE. Deb D, et al. Sci Rep. 2023 Oct 25;13(1):18317. doi: 10.1038/s41598-023-45360-4. Sci Rep. 2023. PMID: 37880321 Free PMC article.
Bio-inspired flying robots (BIFRs) which fly by flapping their wings experience continuously oscillating aerodynamic forces. ...In the present work, we use a motion capture system, aerodynamic modeling, and flow visualization to study the underlying physics of the observed …
Bio-inspired flying robots (BIFRs) which fly by flapping their wings experience continuously oscillating aerodynamic forces. ...In th …
Soft Molds with Micro-Machined Internal Skeletons Improve Robustness of Flapping-Wing Robots.
Gao H, Lynch J, Gravish N. Gao H, et al. Micromachines (Basel). 2022 Sep 7;13(9):1489. doi: 10.3390/mi13091489. Micromachines (Basel). 2022. PMID: 36144112 Free PMC article.
In this work, we demonstrate that encasing SCM components in a soft silicone mold dramatically improves the durability of SCM flexure hinges and provides robustness to SCM components. We demonstrate this advance in the design of a flapping-wing robot that uses an un …
In this work, we demonstrate that encasing SCM components in a soft silicone mold dramatically improves the durability of SCM flexure hin …
Petiolate wings: effects on the leading-edge vortex in flapping flight.
Phillips N, Knowles K, Bomphrey RJ. Phillips N, et al. Interface Focus. 2017 Feb 6;7(1):20160084. doi: 10.1098/rsfs.2016.0084. Interface Focus. 2017. PMID: 28163876 Free PMC article.
The wings of many insect species including crane flies and damselflies are petiolate (on stalks), with the wing planform beginning some distance away from the wing hinge, rather than at the hinge. The aerodynamic impact of flapping petiolate wings is relative …
The wings of many insect species including crane flies and damselflies are petiolate (on stalks), with the wing planform beginning some dist …
Experimental studies suggest differences in the distribution of thorax elasticity between insects with synchronous and asynchronous musculature.
Casey C, Heveran C, Jankauski M. Casey C, et al. J R Soc Interface. 2023 Apr;20(201):20230029. doi: 10.1098/rsif.2023.0029. Epub 2023 Apr 5. J R Soc Interface. 2023. PMID: 37015268 Free PMC article.
Though thorax deformation is often attributed exclusively to muscle tension, the inertial and aerodynamic forces generated by the flapping wings may also contribute. In this study, a tethered flight experiment was used to simultaneously measure thorax deformation and the i …
Though thorax deformation is often attributed exclusively to muscle tension, the inertial and aerodynamic forces generated by the flappin …
An aeroelastic instability provides a possible basis for the transition from gliding to flapping flight.
Curet OM, Swartz SM, Breuer KS. Curet OM, et al. J R Soc Interface. 2013 Jan 9;10(80):20120940. doi: 10.1098/rsif.2012.0940. Print 2013 Mar 6. J R Soc Interface. 2013. PMID: 23303221 Free PMC article.
Here, we study passive flight (flight with no active wing actuation) and explore a physical mechanism that leads to the emergence of a natural flapping motion. We model a vertebrate wing with a compliant shoulder and the ability to camber with an idealized physical model c …
Here, we study passive flight (flight with no active wing actuation) and explore a physical mechanism that leads to the emergence of a natur …
26 results