کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6955134 1451856 2016 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Boundary condition handling approaches for the model reduction of a vehicle frame
ترجمه فارسی عنوان
شرایط مرزی دست زدن به روش برای کاهش مدل یک قاب خودرو
کلمات کلیدی
کاهش مدل، ارتعاشات خودرو شرایط مرزی، جفت،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
In order to apply model reduction technique to improve the computational efficiency for the large-scale FEM model of a vehicle, this paper presents the handling approaches for three widely-used boundary conditions, namely fixed boundary condition (FBC), prescribed motion (PSM) and coupling (COUP), respectively. It is found that iterated improved reduction system (IIRS) reduction method tends to generate better reduction approximation. Guyan method is not sensitive to the sequence of reduction and constraint under FBC, and can thus provide flexibility in handling different boundary conditions for the same system. As for PSM, 'constraint first' is recommended no matter which reduction method is used, and then separate reduction models can be coupled to form a new model with relative small dofs. By selecting appropriate master dofs for model reduction, the coupled model based on reduced models could produce same results as the original full one.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 75, 15 June 2016, Pages 123-137
نویسندگان
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