Lightweight optimization method for aviation corrugated pipe adhesive film structure

Abstract

The invention relates to the field of aviation rubber mold design, in particular to a lightweight optimization method for an aviation corrugated pipe adhesive film structure. The method incldues: S1,constructing a three-dimensional model; s2, reconstructing and optimizing a model part; s3, carrying out topology optimization; s4, establishing a lattice structure by utilizing Magics software; s5, combining and filling; s6, performing analog simulation; s7, enabling the optimization method of the lower die and the die core to be the same as that of the upper die. The optimization method combining topological optimization and the lattice structure is adopted for lightening the aviation corrugated pipe rubber die, the characteristics of the metal 3D printing process are combined, the traditional corrugated pipe rubber film structure design thought is changed, the lightening concept is introduced into die design, the rigidity, the strength and the use performance are guaranteed, meanwhile,the weight of the rubber mold is reduced by 30% or above, and meanwhile the material utilization rate is increased.

Description

technical field [0001] The invention relates to the field of aviation rubber mold design, in particular to a lightweight optimization method for an aviation bellows rubber film structure. Background technique [0002] Aviation rubber bellows are mainly used as an isolation dust cover to isolate dust and machine parts in the air. The pattern of the rubber bellows is as follows: figure 1 and figure 2 As shown, its traditional forming process is molding vulcanization, and the mold used for pressing and forming is called film. The traditional bellows film is manufactured by machining and reducing materials. In addition to combining its own product characteristics, its structural design also takes into account the difficulty of machining. Its structure consists of three parts: the upper mold, the lower mold and the mold core. The traditional film drawings are as follows: image 3 and Figure 4 shown. [0003] The traditional aviation bellows film has the disadvantages of ma...

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Problems solved by technology

[0005] For example, Chinese patent application No. 201810972112.1 discloses a lightweight connecting hinge optimization method combining topology optimization and lattice structure. This method combines topology optimization and lattice structure for connecting hinge structure to achieve lightweight. The disadvantages are The strength tensile test was not carried out on the lattice unit cell structure, and the design method did not mention the added margin

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