کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
246553 502379 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Automatic innovative truss design using grammatical evolution
ترجمه فارسی عنوان
طراحی تراس اتوماتیک ابتکاری با استفاده از تکامل دستوری
کلمات کلیدی
بهینه سازی ساختاری، برنامه نویسی ژنتیک، محاسبات تکاملی، تکامل گرامری، طراحی تراس، طراحی به کمک کامپیوتر
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Real-world material stress limits vary according to physical section properties.
• Truss optimization using standard elements and design to regulations is introduced.
• Minimum achievable weights are considerably higher when codes of practice are adhered to.

Truss optimization in the field of Structural Engineering is a growing discipline. The application of Grammatical Evolution, a grammar-based form of Genetic Programming (GP), has shown that it is capable of generating innovative engineering designs. Existing truss optimization methods in GP focus primarily on optimizing global topology. The standard method is to explore the search space while seeking minimum cross-sectional areas for all elements. In doing so, critical knowledge of section geometry and orientation is omitted, leading to inaccurate stress calculations and structures not meeting codes of practice. This can be addressed by constraining the optimisation method to only use standard construction elements.The aim of this paper is not to find fully optimized solutions, but rather to show that solutions very close to the theoretical optimum can be achieved using real-world elements. This methodology can be applied to any structural engineering design which can be generated by a grammar.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Automation in Construction - Volume 39, 1 April 2014, Pages 59–69
نویسندگان
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