Particle swarm optimization method for two-stage transmission scheme based on fuzzy matter element

A particle swarm optimization and fuzzy matter-element technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as slow convergence speed and low quality

Inactive Publication Date: 2006-07-12
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing two-stage transmission scheme design method, such as slow convergence speed and low solution quality, the present invention provides a fuzzy matter-element-based two-stage transmission scheme particle with fast convergence speed and improved solution quality. group optimization method

Method used

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  • Particle swarm optimization method for two-stage transmission scheme based on fuzzy matter element
  • Particle swarm optimization method for two-stage transmission scheme based on fuzzy matter element
  • Particle swarm optimization method for two-stage transmission scheme based on fuzzy matter element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] refer to figure 1 , figure 2 , a particle swarm optimization method based on a fuzzy matter-element two-stage transmission scheme, the method mainly includes the following steps:

[0075] (1) Initialize the population of transmission schemes, and the number of schemes is defined as m:

[0076] Organization code

institution name

Common transmission ratio range

Maximum transmission

1

Ordinary flat belt drive

2～4

6

2

Ordinary V belt transmission

2～4

15

3

friction wheel drive

2～6

20

4

roller chain drive

2～5

10

5

toothed chain drive

2～5

10

6

Cylindrical gear drive

3～5

10

7

Bevel gear drive

2～3

8

8

Worm drive

7～40

80

9

planetary gear transmission

3～83

500

[0077] Table 1

[0078] Representation of particles

...

Embodiment 2

[0129] see figure 1 , figure 2 , the particle swarm optimization method of the fuzzy matter-element-based two-stage transmission scheme in this embodiment is the same as that in Embodiment 1. The design requirements of the transmission scheme of this embodiment are: input speed 960r / min; output speed 78r / min; transmission power 4.3kW; transmission efficiency not less than 0.85;

[0130] Select the transmission scheme: ① high transmission efficiency, ② good working stability, ③ long service life, ④ good environmental adaptability, ⑤ low cost and other indicators as design goals.

[0131] Use the particle swarm optimization algorithm to solve the design problem of the reducer. The population size is m=20, and the maximum number of generations is 200 generations. Comparing the particle swarm optimization algorithm (PSO) with the genetic algorithm (GA), the maximum fitness curve of the two figure 2 shown.

[0132] from figure 2 It can be seen that both methods have found th...

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Abstract

The invention discloses a particle group optimum method based on two-stage driving program of ambiguous object, which is characterized by the following: representing a driving program of one particle; setting population scale as m; generating m particle randomly and m initiating driving program; detecting the good and bad program degree of specific detected particle through calculating fitful value; adapting confined value of driving program association as fitful value of program particle; updating the operation of particle state continuously; using the last generation of population instead of each particle fitful value; counting the value according to the calculation method to gain different corresponding fitful degree F; selecting large fitful degree F as the optimum driving program. The invention provides a particle group method of rapid convergence and high answer quality based on two-stage driving program of ambiguous object.

Description

(1) Technical field [0001] The invention relates to a design method of a two-stage transmission scheme, in particular to a particle group optimization method of a two-stage transmission scheme based on fuzzy matter elements. (2) Background technology [0002] In recent years, the research work on mechanical computer-aided design has mainly focused on the design tasks that are easy to be numericalized in detailed design, and many effective software systems have been developed, such as finite element analysis software, simulation software, drawing software, etc. And the most creative design work—scheme design task is basically still done by the designer. Schematic design is a key link in mechanical design, and the quality of the scheme directly affects the performance and quality of the product. Compared with detailed design, schematic design pays more attention to creativity. The scheme design process can be regarded as a problem-solving search process in the state space. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 赵燕伟苏楠王万良唐辉军王景周鹏
Owner ZHEJIANG UNIV OF TECH
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