燃气轮机压缩机转子叶片弯曲根部概念的设计与强度分析

Q4 Engineering

Fatigue of Aircraft Structures Pub Date : 2017-12-01 DOI:10.1515/fas-2017-0011

Wojciech Wdowiński, E. Szymczyk, J. Jachimowicz, G. Moneta

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引用次数: 2

摘要

文章的动机是压缩机转子叶片和轮盘的疲劳和微动问题。这些现象可能是由高接触压力引起的，导致锁的接触面发生微动（刀片-磁盘连接、刀片与磁盘的连接）。此外，几何缺口和高循环载荷会引发裂纹并导致发动机故障。本文对K-15涡轮发动机轴流压缩机第三级转子（轮盘和叶片）进行了有限元静力和模态分析。对最初的梯形/燕尾锁几何形状及其两种修改（新锁概念）进行了分析，以优化圆盘叶片组件的应力状态。循环对称公式用于减少建模和计算工作量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design and Strength Analysis of Curved-Root Concept for Compressor Rotor Blade in Gas Turbine

Abstract The motivation of the article is fatigue and fretting issue of the compressor rotor blades and disks. These phenomena can be caused by high contact pressures leading to fretting occurring on contact faces in the lock (blade-disk connection, attachment of the blade to the disk). Additionally, geometrical notches and high cyclic loading can initiate cracks and lead to engine failures. The paper presents finite element static and modal analyses of the axial compressor 3rd rotor stage (disk and blades) of the K-15 turbine engine. The analyses were performed for the original trapezoidal/dovetail lock geometry and its two modifications (new lock concepts) to optimize the stress state of the disk-blade assembly. The cyclic symmetry formulation was used to reduce modelling and computational effort.

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来源期刊

Fatigue of Aircraft Structures Engineering-Safety, Risk, Reliability and Quality

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： The publication focuses on problems of aeronautical fatigue and structural integrity. The preferred topics include: full-scale fatigue testing of aircraft and aircraft structural components, fatigue of materials and structures, advanced materials and innovative structural concepts, damage tolerant design of aircraft structure, life extension and management of ageing fleets, structural health monitoring and loads, fatigue crack growth and life prediction methods, NDT inspections, airworthiness considerations.