Review

Overview on development of advanced fighter life design and extension technology

  • LI Yuhai ,
  • WANG Chengbo ,
  • CHEN Liang ,
  • DONG Hongda ,
  • GUAN Yu ,
  • DI Hongliang ,
  • GU Yuxuan
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  • 1. Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, China;
    2. Department of Comprehensive Strength, AVIC Shenyang Aircraft Design and Research Institute, Shenyang 110035, China

Received date: 2021-04-18

  Revised date: 2021-05-08

  Online published: 2021-05-24

Supported by

National Level Project

Abstract

Lightweight and long life have always been the target of structural strength design of aircraft, which is also a timeless theme for generation after generation of structural strength workers. With the development of the aviation industry at home and abroad, ory of fatigue design analysis and the development of the life extension project of the active aircraft, the technology of aircraft life design and life extension has been developed rapidly. Beginning with the introduction of fatigue design in the design of aircraft in the 1960 s, this paper takes the development of fatigue design criterion as the main line, and carries out a comprehensive discussion of formation and development of technology like determination of scatter factor, load spectrum compilation, life design and extension of aircraft, calendar life evaluation, individual aircraft tracking, etc. We have both experience with success and lessons from failure; we also have the theoretical system, analytical method and standard of fatigue design developed from practice which bring about the continuous improvement of life index of aircraft design, and ensure the safety of aircraft in service. The durability/damage tolerance design concept is the main design idea of the aircraft life design and the life extension of the aircraft in service. The full scale durability/damage test is the main technical way for the life extension. Besides, the structural design improvement, the durability preventive repair and individual aircraft tracking are the indispensable technical means to ensure the long life of the aircraft.

Cite this article

LI Yuhai , WANG Chengbo , CHEN Liang , DONG Hongda , GUAN Yu , DI Hongliang , GU Yuxuan . Overview on development of advanced fighter life design and extension technology[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021 , 42(8) : 525791 -525791 . DOI: 10.7527/S1000-6893.2021.25791

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