关键词: 工序相似系数, 工时, 隶属函数, MATLAB软件

Abstract: Aiming at the characteristics of customer needs such as individuation,product diversity and short order-to-delivery time in modern manufacturing environment,the time-quota determination method was researched.From the machining process,a new method for calculating time-quota was put forward based on process similarity coefficient.By considering the various factors comprehensively,the evaluation index system that influenced the process similarity was built,and the Analytic Hierarchy Process (AHP) was introduced to analyze the evaluation results from experts.The similarity coefficient of sample process and benchmark process was solved by constructing membership function.Based on mature foundation of database and historical data of time-quota,quick inquiry of time-quota was realized by coding technology.The correlative function of time-quota and similarity coefficient of process  was confirmed based on MATLAB,and the total time-quota of part was gained by calculating time-quota.The effectiveness and feasibility of proposed method was verified by comparing with mod method.

Key words: process similarity coefficient, time-quota, membership function, MATLAB software