摘要
基于对常见机械加工尺寸预报模型中的指数平滑模型和灰色预报模型特点的分析,提出了一种用于珩磨加工尺寸预报的动态指数平滑灰色组合模型SGM(αt,s0,t,1,1),并通过理论分析和实例计算,验证了该模型综合了传统预报模型的优点,能够对柱塞套内圆的珩磨过程做出较好的描述,所得的预报值与实测值吻合程度较好,具有较高的预报精度。同时,对所提出模型的参数进行了深入的分析和计算,得出了模型参数选择的一般原则,保证了模型在实际应用当中的可靠性及较高的预报精度。
Based on the analysis of characteristics of the common dimension forecasting model of exponential smoothing model and gray prediction model,a combined model SGM（αt,s0,t,1,1） for honing dimension prediction was given.Through theoretical analysis and examples of calculations,the results showed that the model combines the advantages of traditional forecasting models,it can make a better description of the internal honing process for the plunger bushing.It has good consistence of calculation value with measured data and has higher forecast accuracy.The proposed model parameters were analyzed and calculated,the general principles of the selecting model parameters were given to ensure the reliability of the model in the practical application of those,and ensured that it has the high accuracy of the prodiction.
出处
《新技术新工艺》
2013年第8期13-16,共4页
New Technology & New Process
基金
高档数控机床与基础制造装备科技重大专项资助项目(2010ZX04001-181)
高档数控机床与基础制造装备科技重大专项资助项目(2011ZX04002-122)
甘肃省自然科学基金资助项目(1112RJZA025)
关键词
尺寸预报
指数平滑
灰色模型
珩磨
dimension prodiction
exponential smoothing
gray model
honing
