Gas mask part assembly process analysis method

A gas mask and assembly process technology, applied in image data processing, special data processing applications, instruments, etc., can solve the problems of backward design methods of gas masks, and achieve the effect of reducing design risks and improving assembly performance.

Inactive Publication Date: 2018-03-06
SHANXI XINHUA CHEM
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  • Abstract
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Problems solved by technology

[0004] The purpose of the invention is to design a method for simulating parts of the gas mask, analyze the air tightness and firmness of the assembly of its parts through simulation, and use advanced computer simulation technology to evaluate the assembly reliability of the gas mask , to solve the problem of backward design of gas masks

Method used

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Embodiment Construction

[0020] Specific embodiments of the present invention will be described in detail below.

[0021] A method for analyzing the assembly process of gas mask components, comprising the steps of:

[0022] (1) Establish a gas mask simulation model

[0023] In order to accurately analyze the rationality of the airtightness of the assembly of the gas mask's main communicator, it is necessary to establish a three-dimensional model of each part of the gas mask, such as the cover body, the canister, the eye window structure, the exhalation valve, the inhalation valve, the main Sub-communicator and water-blocking cover, etc.; before the simulation analysis, it is necessary to reasonably simplify the 3D digital model of the gas mask, cut the gas mask, leave the interface assembly model of each component, and delete it, which has little impact on the analysis results The detailed features include chamfering, rounding and holes; and because the tank joint is a rotary body and the main talker...

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Abstract

The invention provides a gas mask part assembly process analysis method. By using a finite element method, the gas mask part assembly process is subjected to simulation analysis, and the simulation process comprises three parts of pretreatment, solution and aftertreatment. Pretreatment mainly comprises introduction of a gas mask part three-dimensional model, building of a rubber cover body material model, dividing of computing grids and setting of contact conditions; during solution, firstly boundary conditions and loads of the model are set, and then a parallel operational model of a computeris utilized to solve the model; during aftertreatment, characteristics of a simulation result are extracted, and a graph is drawn and analyzed. By means of the gas mask part assembly process analysismethod, deformation and stress of the gas mask super-elastic material in the assembly process can be obtained, and the reliability of assembly of the gas mask is evaluated.

Description

technical field [0001] The invention belongs to the field of gas mask simulation, in particular to an analysis method for the assembly process of gas mask parts. Background technique [0002] A gas mask is a kind of gas mask that isolates the head and face organs from the outside world through the mask on the premise of meeting the airtightness and firmness of the assembly at each interface of the mask, and then uses the adsorption, absorption, and catalysis of the adsorbent and filter layer in the canister. It can purify the toxic air outside and provide the users with filter-type respiratory protection equipment with safe and clean breathing air source. [0003] The cover body structure is to assemble various accessories in the gas mask, such as the canister, the eye window structure, the exhalation valve, the inhalation valve, the main and auxiliary communicators and the water blocking cover, etc., to the rubber cover body through a certain assembly procedure. structural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/20
CPCG06F30/23G06F2113/20G06F2119/06G06T17/20
Inventor 王京潘高阳朱海龙董超戎德功王钢姚荷王胜石康赵立新孟凡海成立梅唐鹤刘玉萍李阳魏鑫张建斌
Owner SHANXI XINHUA CHEM
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