کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1713228 1519809 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analyses on schedule-cost coefficient correlation of spaceflight project based on historical statistics and its application*
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Analyses on schedule-cost coefficient correlation of spaceflight project based on historical statistics and its application*
چکیده انگلیسی
When analyze the uncertainty of the cost and the schedule of the spaceflight project, it is needed to know the value of the schedule-cost correlation coefficient. This paper deduces the schedule distribution, considering the effect of the cost, and proposes the estimation formula of the correlation coefficient between the In(schedule) and the cost. On the basis of the fact and Taylor expansion, the relation expression between the schedule-cost correlation coefficient and the In-schedule-cost correlation coefficient is put forward. By analyzing the value features of the estimation formula of the In-schedule-cost correlation coefficient, the general rules are proposed to ascertain the value of the schedule-cost correlation coefficient. An example is given to demonstrate how to approximately amend the schedule-cost correlation coefficient based on the historical statistics, which reveals the traditional assigned value is inaccurate. The universality of this estimation method is analyzed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Systems Engineering and Electronics - Volume 17, Issue 4, December 2006, Pages 769-774
نویسندگان
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