摘要
针对复杂产品概念设计阶段难以精确测算成本的问题,分析了新产品与已有产品的贴近程度。提出一种配置各指标权重的方法,研究了目标序列的加权距离比重贴近度测度模型及性质。将加权距离比重贴近度作为平滑系数对新产品进行成本估算,与平滑系数不变的指数平滑方法进行对比,结果表明该方法具有较高的预测精度。
Aiming at the difficulty of cost estimation in complex product's conceptual design,the closeness degree between the new product and the existing products was analyzed.A new calculation method for each index weight was put forward by considering the different influence on the cost,and the weighted proportion closeness degree to target sequence was studied.The weighted proportion closeness degree was regard as the smoothing coefficient of exponential smoothing model to estimate the cost,and the result by comparing with the exponential smoothing model with the unchanged coefficient showed that the proposed model had higher prediction precision.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2014年第3期555-558,共4页
Computer Integrated Manufacturing Systems
基金
国家社科基金重点资助项目(12AZD102)
国家自然科学基金资助项目(71171113
71173106)
江苏省基础研究计划青年基金资助项目(BK20130786)
中央高校基本科研业务费专项资金资助项目
教育部人文社会科学研究资助项目(12YJC630082)
南京航空航天大学引入人才基金资助项目(1009YAH14003)~~
关键词
复杂产品
成本测算
驱动效应
指数平滑
加权距离比重贴近度
产品设计
complex product
cost estimation
driving effect
exponential smoothing
weighted proportion closeness degree
product design