固体火箭技术2016，Vol.39Issue(1)：139-145,7.DOI:10.7673/j.issn.1006-2793.2016.01.025
不同场坪面层对适应性底座附加载荷影响
Influence of different types launching site surface layer on adaptive base additional load
摘要
Abstract
To study the effect of launching site on adaptive base additional load,a stress-strain curve by using Hongnestad equa-tion improved uniaxial equation of Saenz was constructed for concrete in compression.By introducing damage factor and combined with the principle of energy equivalence,the damage plastic dynamic constitutive of missile unsupported random launching site surface layer was established.Furthermore,the numerical model considering coupling effects between adaptive base and different types of launching site was built to study,the adaptive base additional loads at different launching site surface layer through the additional load integral expressions.The results show that the additional loads are related to the adaptive base touchdown areas under launching load.Adaptive base touchdown area of asphalt concrete pavement launching site is smaller than that of the cement concrete pavement;the asphalt con-crete launching site manifests as local settlement and the cement concrete presented as overall settlement;asphalt concrete pavement launching site additional load is greater than the cement concrete pavement;the additional load has little difference between different types of cement concrete pavement.关键词
无依托发射/适应性底座/附加载荷/不同场坪面层/数值分析Key words
unsupported random launching/adaptive base/additional load/different types launching site surface layer/numerical analysis分类
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周晓和,任杰,高原,马大为,朱忠领..不同场坪面层对适应性底座附加载荷影响[J].固体火箭技术,2016,39(1):139-145,7.基金项目
国家自然科学基金(51303081),江苏省自然科学基金( BK20130761)。 （51303081）
