某涡轴发动机加速任务试车谱编制及验证

发布时间：2018-02-28 17:25

本文关键词： 航空发动机标准试验载荷谱模拟任务载荷谱加速任务试车谱谱载荷试验　出处：《南京航空航天大学》2016年硕士论文　论文类型：学位论文

【摘要】：当前,为了考核航空发动机在使用寿命期内的耐久性和可靠性提出了航空发动机加速任务试车技术,但是加速任务试车技术在国内仍处于一个发展与完善的时期。本文针对航空发动机加速任务试车谱的编制及验证进行了相关的研究。针对航空发动机主要零部件开展的寿命试验,在现有发动机载荷谱编制技术基础上,本文提出了一种通用标准试验载荷谱编制方法简化试验条件下的载荷谱编谱过程。基于此通用标准试验载荷谱编制方法,可以方便快捷的得到各类型发动机主要零部件寿命试验载荷谱。本文开展了高温650?C下加速载荷谱与原始载荷谱的试样谱载荷试验。在某涡轴发动机高压涡轮盘原始应力谱的基础上编制了其在试验温度650?C下的加速应力谱,并以此两种载荷谱作为试验载荷谱,开展高温650?C下试样的蠕变—疲劳交互试验。在误差允许范围内,通过对加速载荷谱与原始载荷谱的对比分析,验证了两种载荷谱的等效性及加速任务试车谱编制方法的可行性,同时验证了通用标准试验载荷谱编制方法的准确性和有效性。通过对加速载荷谱和原始载荷谱与某涡轴发动机加速任务试车谱和模拟任务载荷谱的对比分析,验证了某涡轴发动机加速任务试车谱与模拟任务载荷谱的等效性,可为整机加速任务试车提供参考。基于MATLAB软件的GUIDE功能开发了加速寿命试验载荷谱管理系统软件,并应用此软件编制了某涡轴发动机的加速任务试车谱,编制过程中充分考虑了发动机实际使用情况。使用该软件可以方便快捷的得到某航空发动机的加速任务试车谱,为航空发动机整机加速任务试车或零部件试验节省了大量的经费和时间。
[Abstract]:At present, in order to test the durability and reliability of aero-engine during its service life, an accelerated task test technology for aeroengine is proposed. However, accelerated task test technology is still in a period of development and perfection in our country. This paper studies the compilation and verification of aero-engine acceleration task test spectrum, and aims at the main components of aero-engine. Life tests carried out, Based on the existing engine load spectrum compilation techniques, a universal standard test load spectrum compilation method is proposed to simplify the process of load spectrum compilation under test conditions, based on which the general standard test load spectrum compilation method is proposed. The life test load spectrum of main engine components can be obtained conveniently and quickly. The specimen spectrum load test of accelerated load spectrum and original load spectrum under C is carried out. Based on the original stress spectrum of high pressure turbine disk of a turboshaft engine, the test temperature of 650? The accelerated stress spectrum under C and the two kinds of load spectrum are used as the experimental load spectrum to carry out high temperature 650? The creep-fatigue interaction test of the specimen under C condition. The comparison and analysis of the acceleration load spectrum and the original load spectrum are carried out to verify the equivalence of the two kinds of load spectrum and the feasibility of the method for compiling the accelerated task test spectrum. At the same time, the accuracy and validity of the universal standard test load spectrum compilation method are verified. By comparing the acceleration load spectrum and the original load spectrum with the acceleration task test spectrum and the simulated task load spectrum of a turboshaft engine, the results are compared and analyzed. The equivalence of load spectrum between accelerated task test and simulated load spectrum of a turboshaft engine is verified, which can be used as a reference for accelerating task test. Based on the GUIDE function of MATLAB software, a load spectrum management system software for accelerated life test is developed. Using this software, the acceleration task test spectrum of a turboshaft engine is compiled, and the actual use of the engine is fully considered in the process of compiling the software. Using this software, the acceleration task test spectrum of an aeroengine can be obtained conveniently and quickly. It saves a lot of money and time for aero-engine acceleration task test or parts test.
【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V235.12

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