کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7153618 | 1462486 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A multi-order method for predicting stability of a multi-delay milling system considering helix angle and run-out effects
ترجمه فارسی عنوان
روش چند منظوره برای پیش بینی ثبات یک سیستم آسیاب چندین تاخیر با توجه به زاویه ی مارپیچ و اثرات خروج
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کلمات کلیدی
نیروی برش، تئوری فلوکه، ثبات فرزکاری، چندین تاخیر سیستم فرز، اجرا کردن
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی هوافضا
چکیده انگلیسی
In this paper, a multi-delay milling system considering helix angle and run-out effects is firstly established. An exponential cutting force model is used to model the interaction between a work-piece and a cutting tool, and a new approach is presented for accurately calibrating exponential cutting force coefficients and cutter run-out parameters. Furthermore, based on an implicit multi-step Adams formula and an improved precise time-integration algorithm, a novel stability prediction method is proposed to predict the stability of the system. The involved time delay term and periodic coefficient term are integrated as a comprehensive state term in the integral response which is approximated by the Adams formula. Then, a Floquet transition matrix with an arbitrary-order form is constructed by using a series of matrix multiplication, and the stability of the system is determined by the Floquet theory. Compared to classical semi-discretization methods and full-discretization methods, the developed method shows a good performance in convergence, efficiency, accuracy, and multi-order complexity. A series of cutting tests is further carried out to validate the practicability and effectiveness of the proposed method. The results show that the calibration process needs a time of less than 5 min, and the stability prediction method is effective.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Aeronautics - Volume 31, Issue 6, June 2018, Pages 1375-1387
Journal: Chinese Journal of Aeronautics - Volume 31, Issue 6, June 2018, Pages 1375-1387
نویسندگان
Shanglei JIANG, Yuwen SUN,