- 學位論文
新型齒輪之電腦輔助分析最佳化研究
Study on Computer Aided Analysis Optimization of New Gear
摘要
齒輪廣泛應用在工業界、運輸界和工具機等。其齒輪之輪廓曲線有漸開線、擺線以及其它複合曲線等，由於齒形輪廓曲線不同充分影響嚙合性能。因此本研究發展新型齒形輪廓曲線並充分瞭解其嚙合特性與加工特性，運用Abaqus有限元素分析軟體進行新型齒輪動態嚙合特性分析，並針對接觸力、接觸面積、應變與接觸應力做研究，以及使用Deform 3D進行新型齒輪鍛造加工分析，對沖頭力、應力與應變比進行研究，和使用Moldflow進行新型齒輪射出成型加工分析，對收縮率和翹曲量進行研究，並使用田口法參數設計訂定控制因子以及不同水準因子，且使用望大與望小特性計算出不同結果之最佳參數組合，和使用變異數分析得知因子對不同結果之影響與貢獻度，接著利用回歸分析法進行結果之預測，並將回歸方程式繪製反應曲面圖預測因子對結果之趨勢，最後使用灰關聯分析得到整體最佳參數設計。
並列摘要
Gears are widely used in the industrial, transport industry and machine tools, etc. It’s outline gears involute curve, cycloid curve and other composite curve, etc. Since the different tooth of profile curve adequately influence the meshing performance. Therefore, the research development the new tooth profile curve and fully understand it’s meshing characteristics and processing characteristics. Using the Abaqus FEA software analysis the Meshing characteristics of dynamic of new gear, and doing research for the contact force, contact area, strain and contact stress. And the use of Deform 3D analysis new gear forging, the punch force, stress and strain ratio study. And use Moldflow research on analysis of new gear injection molding the shrinkage and warp. To setting of different factor and level by using Taguchi experimental design method, and using large better and small better to calculate the different results of the best parameters combination. Use of ANOVA leaned that factor on the outcome of the contribution of different. Then use regression analysis to predict the results, and use the regression equation plotted the response surface of predictors the trend of results. Finally, use Taguchi grey analysis to get the overall best design parameters.