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Research on the Health Monitoring Technology of Preload for Complex Aerospace Equipment Fastening Devices

Author

Listed:
  • Wu Kai

    (Equipment Comprehensive Support Center China Academy of Launch Vehicle Technology)

  • Luo Zhijun

    (Tsinghua University, School of Mechanical Engineering)

  • Gu Lixiang

    (Equipment Comprehensive Support Center China Academy of Launch Vehicle Technology)

  • Zuo Wenjia

    (Equipment Comprehensive Support Center China Academy of Launch Vehicle Technology)

  • Liu Yuchang

    (Equipment Comprehensive Support Center China Academy of Launch Vehicle Technology)

Abstract

This paper examines fastening devices for critical precision instruments in complex aerospace equipment, identifying the underlying causes of preload failure and comparing the theoretical foundations of commonly used methods, including the torque method, angle method, and yield point method. The ultrasonic measurement method is ultimately selected for design and application. Using the installation of inertial navigation units (INUs) as a case study, systematic verification is conducted, demonstrating excellent performance outcomes.

Suggested Citation

  • Wu Kai & Luo Zhijun & Gu Lixiang & Zuo Wenjia & Liu Yuchang, 2026. "Research on the Health Monitoring Technology of Preload for Complex Aerospace Equipment Fastening Devices," Springer Series in Reliability Engineering,, Springer.
    • Handle: RePEc:spr:ssrchp:978-3-032-22873-4_30
    DOI: 10.1007/978-3-032-22873-4_30
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