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Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM
المؤلفون المشاركون
Yang, Chao
Xie, Changchuan
An, Chao
Meng, Yang
المصدر
International Journal of Aerospace Engineering
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-20، 20ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-05-12
دولة النشر
مصر
عدد الصفحات
20
الملخص EN
This paper describes a framework for an active control technique applied to gust load alleviation (GLA) of a flexible wing, including geometric nonlinearities.
Nonlinear structure reduced order model (ROM) and nonplanar double-lattice method (DLM) are used for structural and aerodynamic modeling.
The structural modeling method presented herein describes stiffness nonlinearities in polynomial formulation.
Nonlinear stiffness can be derived by stepwise regression.
Inertia terms are constant with linear approximation.
Boundary conditions and kernel functions in the nonplanar DLM are determined by structural deformation to reflect a nonlinear effect.
However, the governing equation is still linear.
A state-space equation is established in a dynamic linearized system around the prescribed static equilibrium state after nonlinear static aeroelastic analysis.
Gust response analysis can be conducted subsequently.
For GLA analysis, a classic proportional-integral-derivative (PID) controller treats a servo as an actuator and acceleration as the feedback signal.
Moreover, a wind tunnel test has been completed and the effectiveness of the control technology is validated.
A remote-controlled (RC) model servo is chosen in the wind tunnel test.
Numerical simulation results of gust response analysis reach agreement with test results.
Furthermore, the control system gives GLA efficacy of vertical acceleration and root bending moment with the reduction rate being over 20%.
The method described in this paper is suitable for gust response analysis and control strategy design for large flexible wings.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
An, Chao& Yang, Chao& Xie, Changchuan& Meng, Yang. 2019. Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM. International Journal of Aerospace Engineering،Vol. 2019, no. 2019, pp.1-20.
https://search.emarefa.net/detail/BIM-1156346
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
An, Chao…[et al.]. Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM. International Journal of Aerospace Engineering No. 2019 (2019), pp.1-20.
https://search.emarefa.net/detail/BIM-1156346
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
An, Chao& Yang, Chao& Xie, Changchuan& Meng, Yang. Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM. International Journal of Aerospace Engineering. 2019. Vol. 2019, no. 2019, pp.1-20.
https://search.emarefa.net/detail/BIM-1156346
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1156346
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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