摘要
为了定量预测车削力的不确定性范围 ,基于对称模糊数、线性规划理论和灰色理论 ,提出了一种切削力不确定性的模糊—灰色预测方法 ,建立了用于获取评价数据的车削力测量系统以验证该方法的有效性。预测与实测结果的对比分析表明 :对于给定的切削条件 ,预测值是可变力的一个范围 ,而不是用传统方法所得的一个确定点 。
In order to predict the region of turning force uncertainty quantitatively, a fuzzy grey prediction procedure for cutting force uncertainty is presented based on the symmetric fuzzy number, linear planning theory and grey set theory. To verify the validity of the procedure, a measuring system of turning force is schematized to acquire the evaluating data. By the comparison between the prediction results and measured data,it is indicated that the prediction is an extent of variable force rather than a certain point for the given turning conditions, and the measured force drops into the extent with smaller relative error.
出处
《工具技术》
北大核心
2002年第8期26-29,共4页
Tool Engineering
基金
国家自然科学基金资助项目 (项目编号 :5 990 5 0 0 8)
关键词
车削力
不确定性
模糊-灰色预测
turning force, uncertainty, fuzzy grey prediction
