Research on Dynamic Response of Launching Site for Missile Unsupported Random Launch

doi:10.3969/j.issn.1000-1093.2014.10.012

Abstract

Abstract: To obtain the dynamic response of launching site, the Hongnestad equation and improved Saenz equation are used to construct the upward and downward stress-strain curves of compressed concrete, which is suitable for asphalt concrete. Damage factor and Sidiroff energy equivalent principle are introduced to establish a plastic damage dynamic constitutive model of launching site for missile unsupported random launch. The dynamic response of the site during launching is analyzed based on nonlinear structural dynamics model considering launching site. The results show that the dynamic response of site below back supports is more significant than that below front support before missile launching. The settlement of site below the bottom of canister launcher is larger, and the sites below the back supports and the bottom of canister launcher are seriously damaged during launching.

Key words: ordnance science and technology, unsupported random launching, launching site, stress-strain relationship, plastic-damage, dynamic response

CLC Number:

TJ03

ZHOU Xiao-he, MA Da-wei, HU Jian-guo, ZHONG Jian-lin. Research on Dynamic Response of Launching Site for Missile Unsupported Random Launch[J]. Acta Armamentarii, 2014, 35(10): 1595-1603.

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