某型导弹冷发射装备场坪适应性研究

为研究某型导弹冷发射装备的场坪适应性，找到影响发射装备场坪适应性的影响因素和评价指标，推导出场坪垂向刚度和风载荷两个重要影响因素的计算方法，确定影响因素取值范围。基于此，采用优化拉丁超立方试验设计方法生成试验样本点。利用有限元数值模型对发射装备的动力响应进行大子样仿真分析，获得样本点空间内导弹出筒时的角位移和角速度，并选择径向基神经网络法建立导弹出筒姿态近似模型，分析导弹出筒姿态敏感度。在敏感度分析的基础上，给出考虑多个因子共同作用下的场坪适应性综合判据，为发射装备的场坪适应性评估提供参考。通过分析可知，当风速不大于2.5 m/s，路面纵坡不大于1.2°时，该发射装备在4级沥青路面即可满足该型导弹发射要求，说明其具有良好的场坪适应性。

Research on Adaptability of a Cold Launching System of Missile to Launching Site

In order to study the adaptability of a cold launching system, the influencing factors and evaluation indexes of adaptability of cold launching system to launching site are found, and the calculation methods of vertical stiffness and wind load are derived. According to the range of influencing factors and evaluation indexes, the test sample points are generated by use of Latin hypercube design method. The angular displacement and angular velocity of sample space are obtained from dynamic response analysis of large sample simulation based on the equipment FEM model. An approximate model of missile attitude is established, and the sensitivity of missile attitude is analyzed by using the radial basis neural network method. On the basis of sensitivity analysis, a synthesis criterion considering multiple factors of adaptability is given, which provides a reference for evaluating the adaptability of launching system. It is shown through the analysis that the four-stage asphalt pavement can meet the missile launch requirements when the wind speed is not more than 2.5 m/s and the longitudinal slope of road is less than 1.2°. Key