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Determining method for deformation ratio considered two-dimensional flat spring net structure

A network structure and determination method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as confirmation of undisclosed deformation

Active Publication Date: 2018-01-12
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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Problems solved by technology

[0004] However, this patent only gives a structure, and does not disclose how to determine or confirm the deformation of the structure in the vertical and horizontal directions according to the needs

Method used

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  • Determining method for deformation ratio considered two-dimensional flat spring net structure
  • Determining method for deformation ratio considered two-dimensional flat spring net structure
  • Determining method for deformation ratio considered two-dimensional flat spring net structure

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Embodiment Construction

[0039] The method for determining the two-dimensional flat spring network structure considering the deformation rate of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, a method for determining the two-dimensional flat spring network structure considering the deformation rate includes the following steps.

[0041] Step 1: Establish a basic unit model consisting of four one-dimensional flat springs and four rings that are spaced and connected end to end. The structure is as follows image 3 with Figure 5 As shown, the one-dimensional flat spring is composed of a semicircle and a screw, the diameter of the semicircle is D, the length of the screw is L, the diameters of the semicircle and the screw are both d, and the diameter of the ring is between D and 3D. For spring steel.

[0042] Step 2: Establish a flexible network structure model composed of basic unit models and one-dime...

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Abstract

The invention discloses a determining method for a deformation ratio considered two-dimensional flat spring net structure. The method comprises the following steps of building a basic unit model formed by connecting four one-dimensional flat springs and four circular rings end to end at intervals; building a flexible net structure model, which is connected with M basic unit models and (M+1) one-dimensional flat springs at intervals in the transverse direction and connected with N basic unit models in the longitudinal direction; deducting the relational expression of the deformation ratio of the one-dimensional flat springs at the transverse position and the load borne by the basic unit models; deducting the relational expression of the deformation ratio of the basic unit model and the loadborne by the basic unit models; deducting the relational expression of the deformation ratio of the flexible net structure models and the total load borne by the flexible net structure models in thetransverse and longitudinal directions, and working out the total load and the deformation ratio of the one-dimensional flat springs at the transverse position according to the numerical relationshipamong the deformation ratio of the basic unit models, the deformation ratio of the one-dimensional flat springs in the basic unit models and the included angle formed after the basic unit models deform.

Description

technical field [0001] The invention relates to the technical field of aircraft flexible skin, in particular to a method for determining a two-dimensional flat spring mesh structure considering deformation rate. Background technique [0002] The variant aircraft should have excellent performance in different flight states, therefore, its structure needs to have good adaptability. The aircraft's flexible skin and structural drive are two basic technologies for structural adaptation, and they are also the main difficulties in the current variant aircraft design. So far, in the field of flexible skin at home and abroad, the applicant believes that the flexible skin of hot research can be mainly classified into three categories: (1) skin based on flexible honeycomb; (2) skin based on corrugated board; (3) ) skin based on polymer. Among them: the manufacturing process of the skin of the flexible honeycomb is complicated, the cost is high, and, because the rubber is used to bear...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 邓扬晨孙聪李金瑞邓达麟
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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