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General valve design optimization method

An optimization method and valve technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of lack of systematic, single basis and support, and achieve the effect of speeding up the research and development process, reducing the test cost and shortening the test period.

Active Publication Date: 2015-10-14
BEIJING INFORMATION SCI & TECH UNIV
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Problems solved by technology

However, the current use of computer simulation in the valve design industry as the basis and support in the process of valve optimization design is relatively simple, and there is a lack of systematic methods.

Method used

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  • General valve design optimization method

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Embodiment

[0041] Using the steam trap as the analysis object, the solid model of the steam trap is established for stress-strain analysis as follows: figure 2 As shown, among them, the stresses in the areas shown in A, B, C, and D are relatively large, and the stress at D is the largest, that is, the maximum stress is mainly distributed in the transition area. Use the primary stress results for the region to compare with the allowable stress values. If the primary stress result obtained from the analysis is greater than the allowable stress, the valve should be strengthened to optimize the stress concentration point. If the primary stress result obtained from the analysis is less than the allowable stress, the valve can be evaluated as qualified for the stress stiffness design and enter the trial production test stage. If the primary stress result obtained from the analysis is far less than the allowable stress, the valve should be lightweight designed to reduce the material used on t...

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Abstract

The invention relates to a general valve design optimization method which comprises the steps of: establishing a solid model, and establishing a corresponding finite element model; performing stress and strain analysis, judging the safety performance of a to-be-optimized valve according to an analysis result, and judging the probability of optimization; establishing a flow channel model and carrying out flow field optimization; calculating Reynolds number according to the flow channel model, and selecting an analysis model according to the Reynolds number; carrying out grid division on the analysis model, setting boundary conditions, and carrying out flow field analysis; carrying out noise analysis on a valve body according to a velocity field and a pressure field, judging whether the noise of the valve body is qualified according to a noise analysis result, if the noise is too big, optimizing a flow channel structure and a valve cavity body in sequence, reestablishing a valve solid model, and carrying out stress and strain analysis on the valve body again; or otherwise, finishing valve body optimization. The method can greatly reduce the experimental cost and effectively shorten the experimental cycle, and can be widely applied to the field of valve design.

Description

technical field [0001] The invention relates to a valve design optimization method, in particular to a general valve design optimization method. Background technique [0002] With the continuous development of new products of manufacturing enterprises, technological updates are getting faster and faster, and the technical content of products is getting higher and higher. In order to obtain a greater competitive advantage, enterprises have to accelerate the development and application of their core technologies, deepen product technology connotations and shorten product development cycles. For this reason, many manufacturing enterprises have adopted different forms of methods to carry out the transformation of internal design and production. With the continuous development of information technology, CAD, CAM, CAE, and CFD technologies have been widely used in manufacturing enterprises. However, the design of products still relies on the personal experience of many designers...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 孙江宏王少红刘旭张晗张奇梁
Owner BEIJING INFORMATION SCI & TECH UNIV
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