کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4977104 | 1451847 | 2017 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A reconfigurable damage-tolerant controller based on a modal double-loop framework
ترجمه فارسی عنوان
یک کنترل کننده مقاوم در برابر خسارت قابل تنظیم بر اساس یک چارچوب دوگانه مدال
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کلمات کلیدی
کنترل فعال آسیب پذیر، کنترل مدون سازگار، مودال هام ؟؟ کنترل، کنترل مودل دو حلقه، کنترل لرزش فعال
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
چکیده انگلیسی
Active vibration control of flexible structures has received considerable attention in the latest decades. However, several related control problems remain open to new investigations such as robust performance, spillover instability, and structural changes due to damage. Specifically in the case of damage, it may significantly aggravate closed-loop performance. Damage-tolerant active control is a recent research area that includes structural damage effect reduction in the controller design requirements. This paper presents a novel control method based on a modal double-loop controller design, aiming for vibration reduction of noncollocated flexible structures subject to damage and encompassing online reconfigurability. The first controller is designed for the healthy system in order to comply with predefined performance and robustness requirements, based on modal Hâ norm. The second controller complements the closed-loop performance if the structure is damaged. A reconfigurable modal technique is adopted to design the second controller, using online modal structural parameter change information to update the controller. To assess the proposed method, finite element models are developed for a case study structure, including health and damage conditions. Results show the effectiveness of the methodology along with performance improvement compared to single-loop controllers based on regular Hâ and modal Hâ approaches.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 88, 1 May 2017, Pages 334-353
Journal: Mechanical Systems and Signal Processing - Volume 88, 1 May 2017, Pages 334-353
نویسندگان
Helói F.G. Genari, Nazih Mechbal, Gérard Coffignal, EurÃpedes G.O. Nóbrega,