کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6876447 1442467 2018 36 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Clearance vs. tolerance for rigid overconstrained assemblies
ترجمه فارسی عنوان
پاکسازی و تحمل برای مجامع بیش از حد محدود
کلمات کلیدی
ترخیص کالا از گمرک، تحمل، بیش از حد محدود، مونتاژ،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر گرافیک کامپیوتری و طراحی به کمک کامپیوتر
چکیده انگلیسی
In order to manage quality, companies need to predict performance variations of products due to the manufacturing components deviations. Usually, to enable the assembly of overconstrained mechanical structure, engineers introduce clearance inside joints. We call mechanical assembly, a set of undeformable components connected together by mechanical joints. This paper presents a solution: firstly, to compute the minimum value of clearance for any given components sizes, and, secondly, to simulate variation of the minimum clearance value when the components dimensions vary between two limits. To achieve this goal, a regularized closure function G is defined. It depends on dimensional parameters, u, representing components dimensions, on positional parameters, p, representing components positions and on clearance parameters, j, representing mechanical joints clearance. A constrained optimization problem is solved to determine the minimum clearance value. An imaginative solution based on numerical integration of an ordinary differential equation is proposed to show the clearance variation. The method is designed to be used during the preliminary phase of overconstrained assemblies design. An advantage is the small number of input data unlike the tolerance analysis dedicated software.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer-Aided Design - Volume 97, April 2018, Pages 27-40
نویسندگان
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