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QUALIFICATION OF COMPRESSOR IMPELLER FOR AERO-ENGINE APPLICATION

机译：航空发动机压缩机叶轮的鉴定

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摘要

This paper presents the approach for qualification of indigenously developed compressor impeller for aero engine application. Indigenisation is understood to be the most important tool for effective technical empowerment of a developing nation. Indigenisation philosophy is adopted by several countries in various fields such as power, infrastructure, aerospace, military equipments and etc. Indigenous development fills the technical, financial and time frame gap between imports and ab-initio design and development. Hence, for a healthy technical growth of any developing nation, Indigenous development activities should go along with ab-initio design activities. Indigenous development has become an integral process of activities of Defence sectors due to its potential benefits. Indian defence imports stands at staggering 65 % of the total defence acquisition. In order to make the best use ofindigenization opportunities in the defence sector, conservative figures would suggest an amount more than 100,000 crores. This gives an indication of the potential and benefits of indigenous development in defence sectors. In this paper a methodology for indigenous development of a military turboshaft engine compressor impeller is discussed. This activity has enabled uninterrupted supply of the component and a substantial Foreign Exchange savings. This paper specifies the various tests conducted over the forging. It also brings out the results of cyclic spin test on the component for 22500 cycles as life substantiation, 15% and 22% over speed test as structural integrity substantiation and 150 hours type test on engine for quality and assembly substantiation. This indigenous development procedure described in this paper can be readily extended to suitable critical aero engine component.
机译：本文介绍了一种用于航空发动机应用的本地开发的压缩机叶轮的鉴定方法。土著化被认为是对发展中国家有效的技术赋权的最重要工具。多个国家在电力，基础设施，航空航天，军事装备等各个领域都采用了土著化理念。土著化发展填补了进口与从头开始设计与开发之间的技术，资金和时间框架空白。因此，为了任何发展中国家的健康技术发展，土著开发活动应与从头开始的设计活动一起进行。由于其潜在的利益，土著人民的发展已成为国防部门活动的一个不可分割的过程。印度国防进口总额占国防采购总额的65％。为了最大程度地利用国防部门的本土化机会，保守的数字表明，这一数字将超过100,000千万。这表明了国防部门土著发展的潜力和利益。本文讨论了军用涡轮轴发动机压气机叶轮本地开发的方法。这项活动使组件的供应不中断，并节省了大量外汇。本文详细说明了锻造过程中进行的各种测试。它还给出了对零件进行22500次循环的循环旋转测试的结果，以作为寿命的证明，以结构完整性为依据对速度测试进行了15％和22％的测试，并以质量和组装为依据对发动机进行了150小时的型式测试。本文所述的本地开发程序可以很容易地扩展到合适的关键航空发动机组件。

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  • 来源
    《Journal of Aerospace Sciences and Technologies》 |2012年第3期|p.217-221|共5页
  • 作者

    R. Ragupathy; Wg Cdr (Retd) Simon K John; M. Esakki Muthu;

  • 作者单位

    Regional Centre for Military Airworthiness, Engines CEMILAC, HAL, Engine Division CV Raman Nagar Bangalore-560 093, India;

    Regional Centre for Military Airworthiness, Engines CEMILAC, HAL, Engine Division CV Raman Nagar Bangalore-560 093, India;

    ETBR & DC Hindustan Aeronautics Ltd CV Raman Nagar Bangalore-560 093, India;

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