Design method of bionic spider web composite material structure

A technology of composite materials and design methods, which is applied in computing, special data processing applications, instruments, etc., can solve problems such as the fact that there are few researches on spider web structures, and achieve the effects of material saving, quality reduction, and high utilization rate

Inactive Publication Date: 2011-01-19
BEIHANG UNIV
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Problems solved by technology

At present, most researchers regard the composition of spider silk as the main con

Method used

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  • Design method of bionic spider web composite material structure
  • Design method of bionic spider web composite material structure
  • Design method of bionic spider web composite material structure

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Embodiment Construction

[0041] See figure 1 , figure 2 , There are two forms of spider web structure, namely circular spider web structure and circular arc spider web structure. The present invention is a design method of a bionic spider web composite material structure - a design method of a circular spider web composite material bionic structure and an arc-shaped spider web composite material bionic structure. For the structure designed by this method, please refer to image 3 , Figure 4 . The structure is mainly composed of a core ring 1, a circular regular latitude 2, a regular warp 3, an irregular warp 4, a hollow 5 and an arc-shaped regular latitude 6;

[0042] See Figure 7 , which is a flow chart of the design method of the present invention. According to different structures and their stress conditions, the present invention provides a method for designing a bionic spider web composite structure. The specific steps of the method are as follows:

[0043] Step 1: First, use finite elemen...

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Abstract

The invention discloses a design method of a bionic spider web composite material structure, comprising seven steps as follows: (1) performing static force analysis on stress of an original structure by finite-element analysis software to obtain a stress deformation cloud chart of the structure; (2) finding out the position of the maximum deformation region from the deformation cloud chart of the structure; (3) selectively arranging annular and arc-shaped regular latitudes and regular longitudes, wherein the maximum radius thereof is equal to or larger than the radius of the maximum deformation concentrated region; (4) arranging the regular longitudes in the mode that the regular longitudes are diffused to the periphery along the centers of the annular and arc-shaped regular latitudes, wherein the density of the longitudes is determined according to the order of magnitude of deformation of the maximum deformation concentrated region and the maximum deformation region; (5) arranging irregular longitudes along the gradient direction of deformation of the regions outside the maximum deformation concentrated region; (6) removing parts of materials from the sections of the structure having smaller stress deformation so as to form a hollow structure and reduce the whole mass of the structure; and (7) performing repeated design improvement on the original structure based on the above steps until the requirement is met.

Description

(1) Technical field [0001] The invention relates to a design method of a bionic spider web composite material structure, in particular to the lightweight design of components in military fields such as aerospace and aviation, and the structure of machine tool components, and is a structure design method. It belongs to the technical field of lightweight design of aerospace and various mechanical structures. (2) Background technology [0002] The development of aerospace technology has put forward higher requirements for the design of various aircraft. It has become the focus of research to increase the speed of the aircraft while ensuring its reliability, which makes the lightweight design of the aircraft more and more important. [0003] Machining technology requires machine tools to have high acceleration and high precision. This requires that the moving parts of the machine tool have small mass and high stiffness, that is, the specific stiffness of the moving structural p...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 袁松梅吕茂斌
Owner BEIHANG UNIV
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