کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5018857 1467719 2017 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic reliability analysis of linear guides in positioning precision
ترجمه فارسی عنوان
تجزیه و تحلیل قابلیت اطمینان پویا راهنماهای خطی در دقت موقعیت
کلمات کلیدی
راهنمای خطی، قابلیت اطمینان دینامیکی، حساسیت قابلیت اطمینان، دقت موقعیت ارتعاش غیر خطی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
With the development of the high-speed machine tools, linear guide has been an important element in machine tools. It is important to analyze the kinematic errors to improve the positioning precision. The failure mode of linear guide in positioning precision is defined as the response errors of the carriage exceeding the walking parallelism tolerance. This paper presents a novel method to estimate the reliability and sensitivity of linear guides with random geometric parameters. The stochastic perturbation method is applied to calculate the statistical moments of the dynamic errors. Additionally, the reliability sensitivity are derived to investigate the parametric significance of random parameters. A SHS-45R linear guide is used as a numerical example to demonstrate the practical applications of the method. According to the dynamic reliability analysis of the linear guide under cycling load, the most dangerous state is determined. A numerical comparison with Monte Carlo simulation is performed to illustrate the accuracy and efficiency of the proposed method. Meanwhile, the effects of the mean and standard deviation of the random geometric parameters on the positioning precision are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanism and Machine Theory - Volume 116, October 2017, Pages 451-464
نویسندگان
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