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Method for optimally designing structure of sliding shaft sleeve based on Kriging model

An optimized design, sliding shaft technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as excessive stress concentration

Inactive Publication Date: 2012-02-22
WISDRI ENG & RES INC LTD
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fast and intelligent method based on the Kriging model in view of the fact that the sliding sleeve of the connection device between the converter support ring and the furnace shell is subject to complex alternating loads, which easily produces excessive stress concentration. Structural Optimum Design Method of Sliding Bushing

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  • Method for optimally designing structure of sliding shaft sleeve based on Kriging model
  • Method for optimally designing structure of sliding shaft sleeve based on Kriging model
  • Method for optimally designing structure of sliding shaft sleeve based on Kriging model

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited.

[0045] The sliding bushing structure optimization design method based on the Kriging model provided by the present invention, such as figure 1 As shown, the steps include:

[0046] 1. Determine the basic shape and preliminary dimensions of the sliding bushing;

[0047] The connection device of the spherical hinge sliding rod type converter support ring and the furnace shell transfers the weight of the entire converter shaft to the converter support ring through three connection devices, and for each connection device, the load acts on the sliding shaft through the support shaft. Therefore, the structural design of the sliding sleeve will affect the stress of the entire connecting device, and its structural design is extremely important. The fixed ball hinge bearing on the support shaft is subject to 3.5×10 6 ...

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Abstract

The invention relates to a method for optimally designing the structure of a sliding shaft sleeve based on a Kriging model. By using an unbiased optimal estimation theory of the Kriging model, the optimal design scheme of the sliding shaft sleeve is predicted and solved. The method comprises the following steps of: determining the basic appearance of the sliding shaft sleeve; analyzing and defining a design variable and a definition domain, which influence the shape of the sliding shaft sleeve; sampling a design space by using a Latin hypercube experiment design method; calculating the stress response of the sliding shaft sleeve by using a finite element method; constructing the Kriging model, and performing accuracy estimation; and constructing a mathematical optimization model, solving the optimal design scheme of the sliding shaft sleeve, and validating by using the finite element method. By using the design variable correlation and variability characteristic of the Kriging model, the unbiased optimal estimation is performed, and guidance is provided for optimal design of the structure of the sliding shaft sleeve. Compared with the conventional method, the method provided by the invention has the characteristics of high calculation speed, optimal scheme design and high reliability.

Description

technical field [0001] The invention relates to a method for optimizing the structure of a sliding bushing in a novel converter support ring and furnace shell connection device, in particular to a method for optimizing the structure of a sliding bushing based on a Kriging model, which belongs to the technology of converter steelmaking equipment field. Background technique [0002] The connection device between the converter shell and the supporting ring is the main part of the converter equipment. Through this connecting device, the supporting ring can drive the furnace shell to rotate to complete the operations of charging, sampling, temperature measurement, slag removal and steel tapping in the steelmaking process. During the converter smelting process, the entire working environment is relatively harsh, in environments such as high temperature, high pressure, and molten steel splashing. Therefore, the connection device must ensure that the support ring and the furnace sh...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 褚学征盛正平谭辉朱志康晓鹏尉强陈方元
Owner WISDRI ENG & RES INC LTD
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