A novel formulation for efficient flutter analysis of rotating composite blades based on referenced nodal coordinate formulation

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-02-28 DOI:10.1016/j.compstruct.2025.119023

Shuangxing Ren , Lei Hou , Tengfei Yuan , Faisal Z. Duraihem , Emad Mahrous Awwad , Nasser.A. Saeed

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引用次数: 0

Abstract

A precise and cost-effective method for flutter analysis is essential for the structural design of aero engine blades. This paper presents an efficient approach that first determines the reference flutter dynamic pressure via the eigenvalue method, followed by a rapid evaluation of the vibration response through the referenced nodal coordinate formulation (RNCF), which is particularly suitable for high-speed rotation, to assess flutter occurrence. The blade is modeled as a rotating plate made of graphene platelet-reinforced metal foam (GPLRMF). The effective material properties are derived from the modified Halpin-Tsai model and the effect of metal foam. The correctness of the structural model is confirmed by comparison with published results. The efficiency is demonstrated by its computational speed, being approximately ten times faster than the absolute nodal coordinate formulation (ANCF). The proposed formulation offers an accurate and efficient tool for obtaining the vibration response and assessing the occurrence of flutter.

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.