自适应底座附加冲击载荷的积分表达和影响因子  

Integral expression and affecting factors for the additional impact load of an adaptive base

作　　者：仲健林 任杰[1] 蔡德咏[2] 胡建国[1,3] 

机构地区：[1]南京理工大学机械工程学院 [2]72465部队 [3]西安现代控制技术研究所

出　　处：《爆炸与冲击》2015年第5期668-674,共7页Explosion and Shock Waves

基　　金：国家自然科学基金项目(51303081);江苏省自然科学基金项目(BK20130761)

摘　　要：为研究附加冲击载荷的解析方法和影响因子,推导了附加冲击载荷的积分表达式,获得了影响附加冲击载荷的3个主要参数;建立底座的数值模型,并通过实验验证了数值模型建立方法的正确性。在数值模型基础上,结合MISO(multiple-input,single-output)多元广义多项式神经网络方法,建立了底座力学特性数学模型,对附加冲击载荷的影响因子进行智能决策分析。分析结果表明:对于附加冲击载荷的影响因子由高到低排序为帘线模量、截面面积、帘线间距,且当相应参数的变化导致附加冲击载荷增大时,该参数对附加冲击载荷的影响因子逐渐减小。To research the analytical method and affecting factors of the additional impact load, an in- tegral expression formula was derived for the additional impact load. Three major parameters affecting the additional impact load were obtained. A numerical model was built for the adaptive base. And the correctness of this modeling method was verified by the test. Based on the built numerical model, a mathematic model was developed by combining the MISO （multiple-input, single-output） multivari- ate generalized polynomials neural network to describe the mechanical properties of the adaptive base. Thereby, the intelligent decision analysis was conducted for the affecting factors of the additional impact load. The analysis results show that the affecting factors for the additional impact load from high to low levels are cord modulus, section area and cord spacing. If the change of one parameter would cause the additional load to increase, the affecting factor by the corresponding parameter on the additional impact load decreases.

关 键 词：爆炸力学 影响因子 数值模型 自适应底座 附加冲击载荷 

分 类 号：O381[理学—流体力学]