应用脑力负荷测量的设计能力评价方法  

An evaluation method of design ability using mental workload assessment

作　　者：郭波[1] 张晓冬[1] 段爽月[1] 

机构地区：[1]重庆大学机械工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2009年第3期288-293,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(70501036)

摘　　要：分析了设计能力与脑力负荷、设计时间和设计效果之间的关系,提出了定量评价的方法。参试者脑力负荷由NASA TLX(national aeronautics and space administration-task loadindex)量表测量,设计时间由专门开发的程序统计,设计效果通过专家打分给定分值。基于所评价出的设计者的能力等级,采用支持向量机技术对新设计任务的设计时间进行了预测。预测值和实测值的对比结果显示二者没有明显差异,说明该方法所评价的设计能力等级是有效的。By analyzing the relationship between design ability and design time, mental workload, and design effect, an evaluation method of design ability is proposed. As far as the factors involved in such method are concerned, mental workload is measured by NASA - TLX （national aeronautics and space administrationtask load index） scale, design time is acquired with a special program, and design effect is scored by expert. Then, the time spent on new design tasks based on the evaluated ability level is predicted by using support vector machines, which is then compared with real-measured time. The result shows that the predicted time is well accorded with the real time, which indicates that the evaluation method of design ability is valid.

关 键 词：设计能力 设计时间 脑力负荷 设计效果 信效度评价 

分 类 号：TH122[机械工程—机械设计及理论] F406.15[经济管理—产业经济]