Analysis about Thermal-structure Coupling Effect of High Firing Rate Automatic Mechanism of a Gun

doi:10.3969/j.issn.1000-1093.2016.09.026

Abstract

Abstract: The prototype of a high firing rate automatic mechanism of a gun has a periodic fire stop failure during firing. The classical thermal expansion theory and the finite element method are used for the thermal-structure coupling analysis of high firing rate automatic mechanism. The analysis results show that the size of its structure can be appropriately adjusted to meet the requirement of the current firing rate and further improve the rate of fire. The improved structural design of demonstration prototype has non periodic fire stop phenomenon after several rounds of live ammunition tests. Thermal-structure coupling method can be used to solve similar failures in engineering practice.

Key words: ordnance science and technology, automatic mechanism, finite element, thermal-structure coupling

CLC Number:

TJ303⁺.3

DAI Yong, QIAN Lin-fang, WU Xiao-jin, XU Ya-dong. Analysis about Thermal-structure Coupling Effect of High Firing Rate Automatic Mechanism of a Gun[J]. Acta Armamentarii, 2016, 37(9): 1738-1743.

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