Modeling the cambering of the flapping wings of an insect using rectangular shell finite elements

Onishi, Minato; Ishihara, Daisuke

doi:10.15748/jasse.7.181

Cited by 4 publications

(8 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is because the mean of the width of the root vein decreases as rv decreases, meaning that the torsional stiffness around the longitudinal axis of the root vein decreases. As discussed in our previous study [10], the rotation of the root vein can increase the camber deformation.…”

Section: Analysis Of the Pixel Wing Model 41 Effect Of The Pixel Model Resolutionmentioning

confidence: 50%

“…However, the usage of the unstructured elements might impose a sophisticated mesh-moving technique on controlling the fluid mesh surrounding the wing model [9] in the finite element analysis of the fluid-structure interaction. Hence, for the purpose of computational efficiency, the pixel wing model consisting of a structured mesh using shell elements has been proposed [10]. As far as we know, except our previous studies [7,10], there are few studies on insect wing models that can deform elastically such that they produce sufficient camber compared to actual insects.…”

Section: Journal Of Advanced Simulation In Science and Engineeringmentioning

confidence: 99%

“…Hence, for the purpose of computational efficiency, the pixel wing model consisting of a structured mesh using shell elements has been proposed [10]. As far as we know, except our previous studies [7,10], there are few studies on insect wing models that can deform elastically such that they produce sufficient camber compared to actual insects. In this model, the model resolution will have strongly affected on the analysis result because this model is composed of structured mesh similar to the voxel model [11].…”

Section: Journal Of Advanced Simulation In Science and Engineeringmentioning

confidence: 99%

See 2 more Smart Citations

Performance evaluation of the pixel wing model for the insect wing's camber

Onishi

Ishihara

2021

JASSE

Self Cite

View full text Add to dashboard Cite

In insect flapping wings, the camber deformation is caused by the aerodynamic forces. Since the camber will improve the aerodynamic performance of Flapping Wing Nano Air Vehicles (FWNAVs), it is important to elucidate the passive mechanism of the cambering. The pixel wing model consisting of a structured mesh using shell elements that can simulate the camber deformation caused by the fluid-structure interaction has been proposed for the purpose of computational efficiency. In this study, the performance of the pixel wing model is evaluated as the pixel model resolution is changed. The minimum pixel model resolution is determined such that it can keep enough magnitude of camber compared to actual insects. Furthermore, it is found that the cambering of the pixel wing model can be effectively changed using the wing's chord-wise flexural stiffness given by the root vein pixels and the thickness of the wing membrane pixels.

show abstract

Section: Analysis Of the Pixel Wing Model 41 Effect Of The Pixel Model Resolutionmentioning

confidence: 50%

Section: Journal Of Advanced Simulation In Science and Engineeringmentioning

confidence: 99%

Section: Journal Of Advanced Simulation In Science and Engineeringmentioning

confidence: 99%

See 1 more Smart Citation

Performance evaluation of the pixel wing model for the insect wing's camber

Onishi

Ishihara

2021

JASSE

Self Cite

View full text Add to dashboard Cite

show abstract

“…It seems that there exist two approaches for modeling these structures [51]. One is the reduced-order modeling [26,27,29,32,[52][53][54], and the other is the realistic modeling [55][56][57].…”

Section: Model Wing For the Fluid-structure Interaction Designmentioning

confidence: 99%

Computational Approach for the Fluid-Structure Interaction Design of Insect-Inspired Micro Flapping Wings

Ishihara

2022

Fluids

Self Cite

View full text Add to dashboard Cite

A flight device for insect-inspired flapping wing nano air vehicles (FWNAVs), which consists of the micro wings, the actuator, and the transmission, can use the fluid-structure interaction (FSI) to create the characteristic motions of the flapping wings. This design will be essential for further miniaturization of FWNAVs, since it will reduce the mechanical and electrical complexities of the flight device. Computational approaches will be necessary for this biomimetic concept because of the complexity of the FSI. Hence, in this study, a computational approach for the FSI design of insect-inspired micro flapping wings is proposed. This approach consists of a direct numerical modeling of the strongly coupled FSI, the dynamic similarity framework, and the design window (DW) search. The present numerical examples demonstrated that the dynamic similarity framework works well to make different two FSI systems with the strong coupling dynamically similar to each other, and this framework works as the guideline for the systematic investigation of the effect of characteristic parameters on the FSI system. Finally, an insect-inspired micro flapping wing with the 2.5-dimensional structure was designed using the proposed approach such that it can create the lift sufficient to support the weight of small insects. The existing area of satisfactory design solutions or the DW increases the fabricability of this wing using micromachining techniques based on the photolithography in the micro-electro-mechanical systems (MEMS) technology. Hence, the proposed approach will contribute to the further miniaturization of FWNAVs.

show abstract

“…In this study, a computational FSI framework for simulating characteristic deformations in insect flapping wings is proposed. The proposed framework consists of a pixel wing model using a structured shell finite element mesh [6], a projection method for the FSI monolithic equation system using an algebraic splitting [7], and the FSI dynamic similarity law to measure dynamic similarity between model's and actual insect's flights [8]. It is shown that the proposed framework can simulate the passive feathering and cambering caused by the FSI directly, whose magnitudes are very close to those of actual insects.…”

Section: Introductionmentioning

confidence: 99%

Computational Fluid-Structure Interaction Framework for Simulating Characteristic Deformations in Insect Flapping Wings

Onishi¹,

Ishihara²

2021

9th Edition of the International Conference on Computational Methods for Coupled Problems in Science and Engineering

View full text Add to dashboard Cite

In this study, a computational fluid-structure interaction (FSI) framework for characteristic deformations in insect's wings is proposed. The proposed framework consists of a pixel wing model using a structured shell finite element mesh, a projection method for the monolithic FSI monolithic equations using an algebraic splitting, and the FSI dynamic similarity law to measure dynamic similarity between model's and actual insect's flights. It is shown that the proposed framework can directly simulate passive feathering and cambering in insect's wings caused by the FSI, whose magnitudes are very close to those of actual insects.

show abstract

Modeling the cambering of the flapping wings of an insect using rectangular shell finite elements

Cited by 4 publications

References 9 publications

Performance evaluation of the pixel wing model for the insect wing's camber

Performance evaluation of the pixel wing model for the insect wing's camber

Computational Approach for the Fluid-Structure Interaction Design of Insect-Inspired Micro Flapping Wings

Computational Fluid-Structure Interaction Framework for Simulating Characteristic Deformations in Insect Flapping Wings

Contact Info

Product

Resources

About