کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5006851 | 1461489 | 2017 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Method for improving the measurement system selection depending on part and process precisions
ترجمه فارسی عنوان
روش برای بهبود سیستم انتخاب اندازه گیری بسته به جزئیات و جزئیات پردازش
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
چکیده انگلیسی
This paper suggests a method for selecting the appropriate measurement system that at best fits to the precisions of part and process simultaneously. This method conducts a hypothesis test using the number of observations n, the probabilities of type I and type II errors, the required value of the capability index (Cp,Required) and the tolerance (Tol) of the evaluated specification to establish the corresponding critical values of the number of distinct categories (NDCâ) and the precision to tolerance ratio (PTRâ). Values of Cp,Required, NDCâ and PTRâ are then used to draw four quarters of plane. PTRâ is plotted on the (Tol, Ïm) quarter of plane, NDCâ is plotted on the (Ïm, Ïp) quarter of plane, Cp,Required is plotted on the (Tol, Ïp) quarter of plane and a 45° miter line is plotted on the (Ïm, Ïm) quarter of plane. The highest tolerable level of the measurement system variability (Ïm) is firstly assessed by means of PTRâ in the quarter of plane (Tol, Ïm). Thereafter, the adequacy of this variability to the process precision is checked out by means of projections in the quarter of plane (Ïm, Ïm) using the miter line, thereafter in the quarter of plane (Ïm, Ïp) using NDCâ and at last in the quarter of plane (Tol, Ïp) using Cp,Required. The application of the proposed method avoids both cases of over and lack of precisions of the selected measurement system regarding to the tolerance of the part and to the process variability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 98, February 2017, Pages 103-111
Journal: Measurement - Volume 98, February 2017, Pages 103-111
نویسندگان
Souha Ben Amara, Jamel Dhahri, Slah Samet, Nabil Ben Fredj,