航空学报 > 2015, Vol. 36 Issue (2): 691-702   doi: 10.7527/S1000-6893.2014.0111

航空发动机吸入颗粒物静电感应特性的模拟实验及分析

殷逸冰1, 左洪福1, 文振华2, 蔡景1, 付宇1   

  1. 1. 南京航空航天大学 民航学院, 南京 210016;
    2. 郑州航空工业管理学院 机电工程学院, 郑州 450015
  • 收稿日期:2014-05-04 修回日期:2014-05-24 出版日期:2015-02-15 发布日期:2014-06-11
  • 通讯作者: 左洪福 Tel.: 025-84895772 E-mail: rms@nuaa.edu.cn E-mail:rms@nuaa.edu.cn
  • 作者简介:殷逸冰 男,博士研究生。主要研究方向:航空发动机健康管理与维修工程。Tel:025-84895772 E-mail:yinyibing1992@163.com;左洪福 男,教授,博士生导师。主要研究方向:可靠性工程、维修工程、故障诊断与监控。Tel:025-84895772 E-mail:rms@nuaa.edu.cn
  • 基金资助:

    国家自然科学基金与中国民航联合资助基金重点项目(60939003);国家自然科学基金(51105344);航空科学基金(2012ZB55003)

Electrostatic induction characteristics of aeroengine inhaled particles: simulated experiment and analysis

YIN Yibing1, ZUO Hongfu1, WEN Zhenhua2, CAI Jing1, FU Yu1   

  1. 1. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. College of Mechanical and Electrical Engineering, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China
  • Received:2014-05-04 Revised:2014-05-24 Online:2015-02-15 Published:2014-06-11
  • Supported by:

    National Natural Science Foundation of China and the General Administration of Civil Aviation of China Jointly Funded Key Projects (60939003); National Natural Science Foundation of China (51105344); Aeronautical Science Foundation of China (2012ZB55003)

摘要:

利用静电传感器和SC-010型环境试验箱等硬件搭建了吸入颗粒物静电监测模拟实验平台,并在此实验平台上展开了针对航空发动机吸入颗粒物静电感应特性的模拟实验研究,成功获取相应静电监测信号。实验设置颗粒材料、管道流速、颗粒粒径和颗粒投入质量4种变量作为变量条件,分别进行4组单一变量的对比实验,采集在不同颗粒材料、不同管道流速、不同颗粒粒径以及不同颗粒质量浓度环境下带电颗粒所产生的静电感应信号,对每组实验信号的活动率水平(AL)、正/负事件率(PER/NER)和绝对平均幅值等特征参数进行相应的数据分析和对比,并得到了一些有用的结论。实验发现,上述4种变量条件分别对静电感应信号的绝对时域平均幅值、AL参数、PER/NER参数有不同程度的影响。

关键词: 航空发动机, 进气道, 静电传感器, 吸入颗粒物, 模拟实验

Abstract:

A simulated experiment platform designed for inhaled particles electrostatic monitoring is constructed, electrostatic sensors and SC-010 environmental chamber are used in the construction, simulated experiments on the characteristics of electrostatic induction of aeroengine inhaled particles are carried out by this platform, and the corresponding electrostatic signals are acquired successfully. Particle material, pipe flow velocity, particle size and particle mass concentration are set as experiment variables, and four groups of contrast experiments with different single variables are conducted in sequence. The electrostatic signals are acquired under different variable conditions, which included different particle materials, pipe flow velocities, particle sizes and particle mass concentrations; each kind of electrostatic signals and its activity level (AL), positive/negative event rate(PER/NER) and absolute average amplitude are analyzed and compared in this paper; some valuable conclusions are studied. The experiments found that four kinds of variable conditions mentioned above could have different effects on AL parameter, PER/NER parameter and absolute average amplitude.

Key words: aeroengine, inlet, electrostatics sensor, inhale particles, simulated experiment

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