کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
801955 1467731 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-probabilistic time-dependent kinematic reliability assessment for function generation mechanisms with joint clearances
ترجمه فارسی عنوان
ارزیابی قابلیت اطمینان سینماتیکی وابسته به زمان غیرمنتظره برای مکانیزم های تولید تابع با واکنش های مشترک
کلمات کلیدی
اختلالات مشترک، عدم اطمینان غیر احتمالی، ساز و کارهای تولید، قابلیت اطمینان وابسته به زمان، نظریه اول گذر
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی


• The non-probabilistic convex model is used to qualify the joint clearances with insufficient statistic information.
• Based on the methods of Lagrange multipliers and Taylor expansion, a novel uncertain kinematic analysis approach is proposed.
• Based on first-passage theory, a new measure index of non-probabilistic time-dependent kinematic reliability is proposed.
• The efficiency and accuracy of proposed method are demonstrated by comparing with Monte-Carlo simulation method.

The analysis of the time-dependent kinematic reliability aims at measuring the possibility of satisfying the motion requirements for mechanisms over a specific time interval. Considering that the exact statistic characteristics of uncertain parameters such as the clearances and dimensions may not be available by virtue of the limited sample information in practical engineering, this paper investigates a new time-dependent reliability assessment method with insufficient uncertainty information. Firstly, to quantify the uncertainty effects of clearances and dimensions on kinematic performance, the clearances are assumed to be convex variables which confined within the clearance circle and the dimensions are regarded as interval variables. Furthermore, an integral procedure of non-probabilistic time-dependent reliability assessment by combination of the interval mathematics and the first-passage theory is proposed, and with the help of the regularization treatment, its solution strategy is mathematically conducted as well. By comparison with Monte-Carlo simulation method, two engineering examples are eventually presented to demonstrate the validity and applicability of the developed method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanism and Machine Theory - Volume 104, October 2016, Pages 202–221
نویسندگان
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