کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5019149 1467840 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of Monte Carlo simulation for estimation of uncertainty of four-point roundness measurements of rolls
ترجمه فارسی عنوان
کاربرد شبیه سازی مونت کارلو برای برآورد عدم قطعیت اندازه گیری های گردشی چهار نقطه ای رول
کلمات کلیدی
گرد و غبار، رول ماشین کاغذ دامنه هارمونیک، مونت کارلو، عدم قطعیت اندازه گیری،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی


- The four-point hybrid algorithm for roundness measurements off rolls is presented and tested.
- Evaluation of measurement uncertainty for measurement of rolls with four-point device is presented for the first time.
- According to evaluation the standard uncertainties for the harmonics amplitudes with hybrid method are less than 2.5 μm.

Large-scale rotors in the paper and steel industry are called rolls. Rolls are reground at regular intervals and roundness measurements are made throughout the machining process. Measurement systems for roundness and diameter variation of large rolls (diameter <2000 mm) are available on the market, and generally use two to four sensors and a roundness measurement algorithm. These methods are intended to separate roundness of the rotor from its movement. The hybrid four-point method has improved accuracy, even for harmonic component amplitudes. For reliable measurement results, every measurement should be traceable with an estimation of measurement uncertainty. In this paper, the Monte-Carlo method is used for uncertainty evaluation of the harmonic components of the measured roundness profile under typical industrial conditions. According to the evaluation, the standard uncertainties for the harmonic amplitudes with the hybrid method are below 0.5 μm for the even harmonics and from 1.5 μm to 2.5 μm for the odd harmonics, when the standard uncertainty for the four probes is 0.3 μm each. The standard uncertainty for roundness deviation is 3.3 μm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precision Engineering - Volume 48, April 2017, Pages 181-190
نویسندگان
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