层间接触与弹性模量对某导弹场坪动载的影响  

Effect of Interface Condition and Elastic Modulus on Launching Site Asphalt Pavement

作　　者：袁成林[1,2] 马大为[1] 张震东[1] 

机构地区：[1]南京理工大学机械工程学院 [2]解放军73307部队

出　　处：《火力与指挥控制》2016年第3期53-56,61,共5页Fire Control & Command Control

基　　金：国防基础科研基金资助项目(B2620110005)

摘　　要：为了研究某型导弹典型公路发射场坪沉降量和受力状态,利用混凝土塑性损伤模型建立某导弹无依托发射场坪有限元模型,在选取30种典型路面结构的基础上,分析了土基层弹性模量和面层与基层间黏结状况两个因素对路面动载响应的影响。结果表明:层间接触不良会导致路面弯沉、剪应力变大。同时得出该型导弹发射道路土基层弹性模量应大于20 MPa。研究结果对于评估导弹无依托发射生存能力和快速反应能力提供参考依据。In order to study the settlement and forced state of a certain type of missile launching site on some typical highway,on the basis of using concrete damaged plasticity,the finite element model of missile unsupported random launching site is established,chooses 30 kinds of typical pavement structure,the impact of soil base modulus of elasticity and the bonding condition between surface layer and base layer on the pavement structural mechanics is analyzed. The results have indicated that the poor interface bond can increase deflection and tensile stress. The value of soil base modulus elasticity should be greater than 20 MPa. The research conclusions can offer reference for assessment survivability and rapid response capability of missile launching site when unsupported random launching way is applied.

关 键 词：无依托发射 场坪 塑性损伤 层间接触状态 弹性模量 

分 类 号：TJ03[兵器科学与技术—兵器发射理论与技术]