Identification of Cross-section Loads Based on Measured Strain of Missile Body

LIU Yu-biao;XING Yun-lin;SHEN Zhong-han

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2016, Vol. 37 ›› Issue (2) : 332-337. DOI: 10.3969/j.issn.1000-1093.2016.02.020
Paper

Identification of Cross-section Loads Based on Measured Strain of Missile Body

  • LIU Yu-biao, XING Yun-lin, SHEN Zhong-han
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Abstract

A pressing problem facing to missile designer is to identify the cross section loads of missile load by measured strains data which would be conveniently obtained in the flight test. A load identification method based on the measured strain data of the surface of the missile body is introduced to determine the equivalent bending moment and the axial force of the cross section. In order to eliminate the interference of the fault points of the measured data, a defect rejection principle based on linear correlation theory is presented to improve the reliability of the identification method. A verification test is designed to verify the accuracy and reliability of the identification method. Results show that the method has the high identification accuracy and can be applied to the engineering practice.

Key words

ordnance science and technology / missile body / load identification / linear correlation / least square method

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LIU Yu-biao, XING Yun-lin, SHEN Zhong-han. Identification of Cross-section Loads Based on Measured Strain of Missile Body. Acta Armamentarii. 2016, 37(2): 332-337 https://doi.org/10.3969/j.issn.1000-1093.2016.02.020

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