کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
291761 509777 2006 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A shear beam finite element for the damping analysis of tubular laminated composite beams
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
A shear beam finite element for the damping analysis of tubular laminated composite beams
چکیده انگلیسی

The paper presents a three-dimensional beam element developed for predicting the damping of composite blades with hollow laminated cross-sections. The unified theoretical framework for synthesizing the equivalent damping properties of a tubular composite blade section is outlined. Building upon the damping mechanics, a damped three-dimensional shear beam finite element is developed, which explicitly provides damping, stiffness and mass matrices. A methodology for analyzing the damped free-vibration response of tubular beams is formulated, and modal frequencies and modal damping values are predicted. Application examples illustrate the ability of the beam element to predict the modal damping and modal frequencies of hollow blades of various uniform circular, elliptical and box sections. The results further quantify the ability of the element to capture the strong effect of skin laminations, as well as the contribution of shear to the modal damping of the beam.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 291, Issues 3–5, 4 April 2006, Pages 802–823
نویسندگان
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