高速內孔磨床結構動態優化設計

Structural Design and Dynamic Optimization for High Speed Grinder

曾淵鱗(Yuan-Lin Tseng)

指導教授 ： 康淵

中原大學/工學院/機械工程研究所/碩士(2001年)

https://doi.org/10.6840/cycu200100250

摘要

中文摘要
本文針對高速內孔磨床之結構剛度進行探討，建立有限元素分析模型，使用ANSYS商用軟體，分析磨床、馬達機台，磨床將以主軸、承載台及整機三部分來作分析，馬達機台將分成托架及框架兩部分來作分析。
其中主軸作靜態分析，進行尺寸優化，模擬軸承位置以不同之彈性係數（K），探討不同K值及軸承間距與變形量之間的關係，以及軸徑與變形量之間的關係，進而找出變形較小的結構。
其次將承載台與整機磨床作動態分析，求得其共振頻率與模態振形，進行結構改良，找出結構剛性較佳的結構。而承載台又分成承載台A與承載台B，其中承載台A分由有右側兩斜肋及無右側兩斜肋，承載台B則分由實心肋板、無肋板、少肋板共七種型式。整機磨床採用補強的底部，依其設計方式的不同，分成四種型式來作模態分析。
在馬達托架與框架之實例分析中，經由馬達元件模態測試實驗所得到的共振頻率及模態振形，與ANSYS分析出來的結果，以實驗與分析中同一振形下的頻率值來作比對，以驗證分析結果的準確性，並依其差異性進行修模，及模型之參數校正。

關鍵詞: 磨床、靜態分析、動態分析、有限元素法、模態測試、動態性能優化。

關鍵字

動態分析 ； 有限元素法 ； 靜態分析 ； 模態測試 ； 動態性能優化 ； 磨床

並列摘要

Abstract
The study to research structure rigid of high speed grinder.This is to develop the model of finite element analysis method and is to use ANSYS of commercial software for grinder and motor machine.The grinder of analysis is to divide into three parts for shaft,loading platform and complete grinder.The motor machine of analysis is to divide into two parts for bracket and frame.
The shaft of static analysis is to search for optimum size.There is different coefficient of elasticity to imitate bearing position.It is to confer relation for bearing span and deformation,and it is to confer relation for shaft of diameter and deformation in different coefficient of elasticity.Then it is to search for structure of smallest deformation.
The dynamic analysis of loading platform and complete grinder is to solve resonance frequency and mode shape.It is improving to search for structure of bigger rigid.Loading platform is to divide into two parts for A and B.Loading platform A is to divide into two parts for having right ribs and without having right ribs.Loading platform B is to divide into seven parts for solid ribs,reducing ribs and without ribs.The complete grinder is to divide into four parts for increasing strength of bottom.
The component of motor machine is to do experimental modeling that it is to solve resonance frequency and mode shape.Then it is to compare with experiment result and analysis result.In the end,it is to revise model according to reality and it is to revise parameter for model.
Keywords: Grinder,Static analysis,Dynamic analysis,Finite element method,Experimental modeling,Dynamic Optimization.

並列關鍵字

Experimental modeling ； Static analysis ； Grinder ； Dynamic analysis ； Finite element method ； Dynamic Optimization

參考文獻

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