基于MATLAB的开槽圆锯片结构优化设计_毕业论文.pdf

河北工业大学硕士学术论文

摘 要

金刚石圆锯片是石材加工行业最重要的一种切割工具。其超薄的结构特性，导致

圆锯片横向刚度不足，在锯切加工过程中，常常出现严重的变形并伴有剧烈振动和刺

耳噪声，对环境和人类生活造成极大的危害。大量研究表明，基体开槽对实现圆锯片

的减振降噪有着显著的效果。本课题采用基于

MATLAB

的开槽圆锯片结构优化设计，

八个设计变量。

(2) 建立优化设计中的适应度函数，实现 MATLAB 和 ANSYS 两大软件的并行计

算。在

ANSYS

软件能够识别的命令流文件，调用

ANSYS

对圆锯片进行有限元分析并产生结果文件。

MATLAB

读取结果文件中的数据进行处

理，得到适应度值。

(3) 运用 MATLAB 语言实现优化程序的编写。首先合理建立优化过程中的目标函

数和约束条件，然后使用 MATLAB 优化工具箱编程计算。主要包括编码和解码过程、

选择过程、交叉过程和变异过程等遗传操作。

量低，研究成果对圆锯片的开槽技术有一定的使用价值。

关键词：圆锯片，MATLAB，NURBS 曲线，减振降噪

基于

MATLAB

的开槽圆锯片结构优化设计

ABSTRACT

Diamond saw blade is the most important tool in stone processing industry. Its

ultra-thin structural characteristics cause the low lateral stiffness of saw blade. Due to its

low lateral stiffness, the saw blade causes large deformation, severe vibrations and harsh

noise, which would do harm to the environment and human life. Numerous studies show

that slotting on the substrate have significant effects on vibration and noise reduction of

points’ coordinate values of quadratic NURBS curves(the six coordinate values), the

number of slots and the weight factor are able to identify a total of eight design variables.

Secondly, the fitness function is successfully established, and the parallel computing of

MATLAB and ANSYS are completed. The command stream file that can be recognized in

ANSYS software is written in MATLAB m-file. Finite element analysis of circular saw

blades was Based on ANSYS to get the results file. The results of the data file was read and

analyzed in MATLAB to obtain the fitness value.

Thirdly, the optimization program is written by using MATLAB language. It needs to

set a reasonable objective function and constraints, then use MATLAB optimization

toolbox for programming and computing. It includes many genetic manipulation of coding,

experimental methods is made between the slotting circular saw and the common circular

saw. This will further verify the vibration and noise reduction effect of slotting circular saw

blade.

In this subject, the vibration characteristics of slotted circular saw blade when working

河北工业大学硕士学术论文

are analyzed to provides a theoretical basis of noise and vibration reduction. The

experimental results proved that vibration energy of circular saw blade after optimization

was lower than the common circular saw. This research result have great use value on

slotted technology of circular saw blades.

Keywords: Circular saw blades, MATLAB, NURBS curves, Vibration and noise reduction.

基于

MATLAB

的开槽圆锯片结构优化设计

河北工业大学硕士学术论文

目 录

ABSTRACT............................................................................................................................II

1.3 MATLAB 优化设计.................................................................................................7

1.4 课题研究内容及论文结构...................................................................................... 8

的特点

........................................................................................15

2.2.2.1 遗传算法的运行过程...................................................................... 16

2.2.2.2 编码与解码...................................................................................... 16

2.2.2.3

适应度值评价检测

.......................................................................... 19

2.2.2.4

选择

.................................................................................................. 20

2.2.2.5 交叉.................................................................................................. 21