کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5016413 1465299 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of nonlinear hysteretic parameters by enhanced response sensitivity approach
ترجمه فارسی عنوان
شناسایی پارامترهای غیرخطی هیسترتیک با استفاده از روش حساسیت پاسخ افزایش یافته
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
Hysteresis is a ubiquitous phenomenon describing the special nonlinear memory-based relation between the input and the output in many physical systems. Identifying the hysteretic parameters is the first step towards practical application of hysteretic models. In this paper, a general framework for parameter identification of nonlinear hysteretic models is developed based on the enhanced response sensitivity approach. To do so, three typical hysteretic models-Bouc-Wen model, bilinear model with kinematic hardening and bilinear model with equal yielding force are analyzed at first and the general way to model a structure with such hysteretic components is established thereafter. Then, the enhanced response sensitivity approach is presented for inverse parameter identification where the key lies in the sensitivity analysis and the trust-region constraint. Particularly, smoothing procedure is introduced to overcome the non-differentiability of bilinear hysteretic functions for sensitivity analysis of bilinear models. Numerical examples are studied to testify the feasibility and performance of the proposed approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Non-Linear Mechanics - Volume 96, November 2017, Pages 1-11
نویسندگان
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