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Journal of Projectiles, Rockets, Missiles and Guidance >

2025 , Vol. 45 >Issue 1: 80 - 84

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.01.011

Research on Unlocking Characteristics of Storage and Transportation Device Under Accidental Vehicle Ignition Condition

  • HAO Yuchen ,
  • ZHANG Baogang ,
  • LI Yulin ,
  • YAN Jinzhen ,
  • ZHANG Xuecheng ,
  • ZHANG Xingyong
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  • Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China

Received date: 2024-08-09

  Online published: 2025-03-12

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Abstract

The reliability and safety of the unlocking device in a missile launcher are much more important to the launch system of an aircraft and they even influence its flight mission. In order to investigate the unlocking performance of storage and transportation device under the accidental vehicle ignition condition, the longitudinal lock in the typical lever locking mechanism of the launcher is taken as the objective in this paper. The nonlinear explicit numerical test method is adopted to establish a fracture model for the longitudinal lockto analyze its unlocking performance alongwith proof test. The results show that under the action of axial thrust generated by the motor, the end thread of the bolt is damages and failure, and the outlet is extruded to reduce the contact between each other, so that the unlocking function is finally realized according to the fracture of the longitudinal lock. Based on the numerical experiments, the critical force for the longitudinal lock is 27 kN, and the safety margin under actual working condition is 11%. The reliability of numerical experiment have been verified by using a simulated missile loading test to get actual fracture condition of the longitudinal lock. The results can provide theoretical reference for the safety analysis of the storage and transportation device.

Key words： storage and transportation device; fixing device; cylinder longitudinal lock; accidental condition; unlocking characteristics

Cite this article

HAO Yuchen , ZHANG Baogang , LI Yulin , YAN Jinzhen , ZHANG Xuecheng , ZHANG Xingyong . Research on Unlocking Characteristics of Storage and Transportation Device Under Accidental Vehicle Ignition Condition[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(1) : 80 -84 . DOI: 10.15892/j.cnki.djzdxb.2025.01.011

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