Effect of particle impact on spatial and temporal erosion characteristics of turboshaft engine compressor

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2024-09-18 DOI:10.1016/j.wear.2024.205578

Pingping Yang , Chao Li , Guangfu Bin , Fengshou Gu , Haiyan Miao

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Abstract

When turboshaft engines operate in dusty environments, particulate matter erodes the compressor blades, which may leads to structural damage and presents a severe threat to the operational reliability and safety of helicopters. The aim of this study is to determine the erosion characteristics of compressor blades and how it changes with time. Particle velocimetry and erosive experiments were conducted to obtain the SiO₂ particle velocity and the erosion rate of the Ti-6Al-4V titanium alloy. Based on the measured data, the parameters of the Tabakoff erosion model have been refined, which is critical for establishing a transient erosion model for the 1.5-stage compressor of a turboshaft engine that accounts for the effect of particle erosion time. Simulation results show that the motion behavior of particles exhibits changing patterns at different time intervals, which leads to variations in the erosion area and erosion rate of the compressor. The erosion area and rate on blades increase nonlinearly with time. In some locations, when erosion time increases, the erosion area and erosion rate also increase. While, in other locations, the erosion area and erosion rate hardly change with time. The maximum erosion rates increased by 27.3 %, 28.6 %, and 87.2 % for the guide blades, 42.9 %, 69.6 %, and 84.0 % for the rotor blades, and 69.0 %, 103.6 %, and 142.8 % for the stator blades at 0.50s, 0.75s, and 1.00s, respectively, in comparison to 0.25s.

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颗粒冲击对涡轮轴发动机压气机空间和时间侵蚀特性的影响

涡轮轴发动机在多尘环境中工作时，颗粒物质会侵蚀压气机叶片，从而可能导致结构损坏，对直升机的运行可靠性和安全性构成严重威胁。本研究旨在确定压缩机叶片的侵蚀特征及其随时间的变化情况。通过粒子测速仪和侵蚀实验，获得了二氧化硅粒子速度和 Ti-6Al-4V 钛合金的侵蚀速率。根据测量数据，完善了 Tabakoff 侵蚀模型的参数，这对于为涡轮轴发动机的 1.5 级压气机建立考虑到颗粒侵蚀时间影响的瞬态侵蚀模型至关重要。仿真结果表明，颗粒的运动行为在不同的时间间隔内表现出不同的模式，从而导致压气机的侵蚀面积和侵蚀速率发生变化。叶片上的侵蚀面积和侵蚀速率随时间呈非线性增长。在某些位置，当侵蚀时间增加时，侵蚀面积和侵蚀率也会增加。而在其他位置，侵蚀面积和侵蚀率几乎不随时间变化。与 0.25 秒相比，在 0.50 秒、0.75 秒和 1.00 秒时，导向叶片的最大侵蚀率分别增加了 27.3 %、28.6 % 和 87.2 %，转子叶片的最大侵蚀率分别增加了 42.9 %、69.6 % 和 84.0 %，定子叶片的最大侵蚀率分别增加了 69.0 %、103.6 % 和 142.8 %。

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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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.