کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
865587 909675 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three-Step Method for Stiffness Identification of Inter-Story Shearing Structures Under Ambient Excitation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Three-Step Method for Stiffness Identification of Inter-Story Shearing Structures Under Ambient Excitation
چکیده انگلیسی
This paper presents a three-step method for the stiffness identification of inter-story shearing structures under ambient excitation. The transition from structural random response to deterministic response is realized by the natural excitation technique (NExT). The parameter-decoupled free vibration equation of inter-story shearing structures is deduced, which can simplify the procedure of identification and reduce the amount of calculation. Through the effective combination of the NExT, the parameter-decoupled method, and the extended Kalman filter (EKF) algorithm, a good scheme is presented for stiffness identification of inter-story shearing structures under ambient excitation. Using inter-story shearing structures with six-degree-of-freedom and ten-degree-of-freedom as examples, the scheme is tested by numerical simulation and experiment. The result shows that the maximum of identification error is 7.82%, and it can reach the requirement of engineering application basically.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tsinghua Science & Technology - Volume 14, Supplement 2, December 2009, Pages 69-74
نویسندگان
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