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Simulation and control method, system and readable storage medium of lepidopteran insect model

A technology of Lepidoptera insects and control methods, which is applied in design optimization/simulation, animation production, instruments, etc., can solve problems such as large amount of calculation, poor bionic effect, insufficient realism, etc., and achieves good bionic effect and degree of simulation. High, strong bionic effect

Active Publication Date: 2022-03-15
EAST CHINA JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

It is worth noting that although the CFD solver can simulate a more accurate flapping wing, this method needs to use a large number of fluid particles to approximate the solution of the Naiver-Stokes equation, so the amount of calculation is large, and it is not suitable for real-time butterfly simulation and motion control.
[0005] For example, the Chinese patent application number 201510221704.6 discloses a method for swarm simulation of flying insects based on biological rules, but it also has the problem of treating insects as rigid bodies for flight simulation; similar methods have also been extended by other scholars. In these methods wings are treated as non-deformable rigid bodies, so realistic wing movement cannot be produced
At the same time, the existing technology does not consider the subtle influence of flight speed, spatial position, external force, environment and other factors on the flight attitude of non-rigid Lepidoptera insect models, resulting in insufficient realism and poor bionic effects

Method used

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  • Simulation and control method, system and readable storage medium of lepidopteran insect model
  • Simulation and control method, system and readable storage medium of lepidopteran insect model
  • Simulation and control method, system and readable storage medium of lepidopteran insect model

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Embodiment 1

[0074] This embodiment is mainly used to introduce the simulation of a Lepidoptera insect model and the simulation part of the control method, which can describe the different postures of Lepidoptera insects in detail through individual control parameters; make the insect model more realistic and bionic Stronger; can include:

[0075] Based on the detailed size of the insect body, a virtual lepidopteran insect model is established using 3D mesh and hierarchical skeleton; the model includes n wings and gravity information, and multiple flight control angles are set based on the flight state characteristics of lepidopteran insects , the multiple flight control angles include: front wing and rear wing flapping angle θ γ , front wing rotation angle θ ζ , pitch angle θ β , front wing sweep angle θ Ψ and abdominal rotation angle θ φ The gravity information includes the mass of the model, the gravity and the coordinates of the center of gravity of the virtual Lepidoptera insect m...

Embodiment 2

[0080] On the basis of Embodiment 1, this embodiment mainly focuses on the simulation of butterflies and moths, and mainly selects two representative butterflies and a representative moth; , monarch butterfly (scientific name: Danaus plexippus) and hawkmoth (scientific name: Hawkmoth Manducasexta); Specifically, simulation experiments were carried out on a PC with Intel(R) Core(TM) I7-7700CPU, Geforce RTX2070GPU(8G), and 16GB memory; only GPU was used for rendering acceleration of the model, and GPU was used for parallel computing.

[0081] The mesh of the 3D butterfly model is composed of triangular patches. The 3D model of the monarch butterfly has 11814 vertices and 23334 triangles, and the 3D model of the swallowtail butterfly contains 16596 vertices and 16594 triangles. The butterfly model is mainly composed of five parts: head, chest, abdomen, front wing and rear wing; in order to simulate a more realistic butterfly, a hierarchical skeleton is designed for the butterfly ...

Embodiment 3

[0093] On the basis of embodiment 1, present embodiment is mainly used in introducing the flight control part in a kind of Lepidoptera insect model simulation and control method: the method comprises the steps:

[0094] Step 1: Create a virtual Lepidoptera insect model using the above method.

[0095] Step 2: Using the quasi-steady-state aerodynamic theory, solve the aerodynamic force F on the triangular surface of each three-dimensional mesh of the jth wing of the virtual lepidopteran insect model i，j , and put the aerodynamic force F on each triangular surface of the three-dimensional mesh on the jth wing i，j Perform superposition to get the aerodynamic force F on the jth wing j Solve the aerodynamic forces on the n wings of the virtual lepidopteran insect model in turn, sum to obtain the aerodynamic summation of the virtual lepidopteran insect model, and superimpose Perlin noise on the curl noise field to obtain the vortex force F vor .

[0096] Step 3: According to the ...

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Abstract

The invention relates to a Lepidoptera insect model simulation and control method, system and readable storage medium, and belongs to the technical field of computer graphics and simulation; specifically includes a Lepidoptera insect model simulation and control method; the method adopts three-dimensional mesh and hierarchy A non-rigid body virtual lepidopteran insect model is established by using the skeletonized skeleton, and the automatic control of its flight is realized; the flight speed, space position, external force, environment and other factors are considered in the flight control. The influence of the flying attitude of the insect model of the order fills the gap in the prior art for the flight control of the non-rigid Lepidoptera model; the flying attitude of the Lepidoptera model controlled by the method proposed by the invention is more realistic and the bionic performance is better.

Description

technical field [0001] The invention belongs to the technical field of computer graphics and simulation, in particular to a Lepidoptera insect model simulation and control method, system and readable storage medium. Background technique [0002] Biosimulation has countless potential applications in many fields, such as entertainment, virtual reality, education, behavior analysis, etc. In recent years, researchers have put a lot of effort into modeling and dynamic simulation of living organisms, including snakes, fish, birds, insects, ants, etc. [0003] The individual simulation method of flying organisms can be applied to the production of animation, the control of micro UAVs and the attitude control of bionic Lepidoptera insects. In the prior art, for the simulation of the Lepidoptera insect model, it only uses three-dimensional mesh to simulate its appearance, does not consider the flight posture of the Lepidoptera insect in detail, regards the butterfly as a rigid body,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T13/40G06F30/28G06F113/08G06F119/14
CPCG06T13/40G06F30/28G06F2113/08G06F2119/14
Inventor 罗国亮鲁挺松陈强刘菘金小刚肖美华
Owner EAST CHINA JIAOTONG UNIVERSITY
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