New Method for Analyzing the Flutter Stability of Hingeless Blades with Advanced Geometric Configurations in Hovering
المؤلفون المشاركون
Han, Jinglong
Yun, Haiwei
Wang, Si-wen
Chen, Quan-long
Chen, Xiao-mao
المصدر
International Journal of Aerospace Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-02-17
دولة النشر
مصر
عدد الصفحات
16
الملخص EN
A new method used to analyze the aeroelastic stability of a helicopter hingeless blade in hovering has been developed, which is especially suitable for a blade with advanced geometric configuration.
This method uses a modified doublet-lattice method (MDLM) and a 3-D finite element (FE) model for building the aeroelastic equation of a blade in hovering.
Thereafter, the flutter solution of the equation is calculated by the V-g method, assuming blade motions to be small perturbations about the steady equilibrium deflection.
The MDLM, which is suitable to calculate the unsteady aerodynamic force of nonplanar rotor blade in hovering, is developed from the doublet-lattice method (DLM).
The structural analysis tool is the commercial software ANSYS.
The comparisons of the obtained results against those in the literatures show the capabilities of the MDLM and the method of structural analysis.
The flutter stabilities of swept tip blades with different aspect ratios are analyzed using the new method developed in this work and the usual method on the basis of the unsteady strip theory and beam model.
It shows that considerable differences appear in the flutter rotational velocities with the decrease of the aspect ratio.
The flutter rotational velocities obtained by the present method are evidently lower than those obtained by the usual method.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wang, Si-wen& Han, Jinglong& Chen, Quan-long& Yun, Haiwei& Chen, Xiao-mao. 2020. New Method for Analyzing the Flutter Stability of Hingeless Blades with Advanced Geometric Configurations in Hovering. International Journal of Aerospace Engineering،Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1167964
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wang, Si-wen…[et al.]. New Method for Analyzing the Flutter Stability of Hingeless Blades with Advanced Geometric Configurations in Hovering. International Journal of Aerospace Engineering No. 2020 (2020), pp.1-16.
https://search.emarefa.net/detail/BIM-1167964
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wang, Si-wen& Han, Jinglong& Chen, Quan-long& Yun, Haiwei& Chen, Xiao-mao. New Method for Analyzing the Flutter Stability of Hingeless Blades with Advanced Geometric Configurations in Hovering. International Journal of Aerospace Engineering. 2020. Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1167964
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1167964
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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