1) bird impact
鸟撞
1.
Numerical analysis of the damage of bird impaction against composite laminates and the influence factors on absorbing energy;
复合材料层合板鸟撞损伤及吸能影响因素数值分析
2.
Numerical simulation of bird impact on bladed rotor stage by fluid-solid coupling method;
采用流固耦合方法的整级叶片鸟撞击数值模拟
3.
Numerical simulation of bird impact dynamic response for windshield;
飞机风挡结构抗鸟撞动响应数值模拟
2) bird strike
鸟撞
1.
Identification of a birdbody constitutive model and its parameters,which is very difficult,is an important factor to affect the numerical simulation result of an aircraft windshield against bird strike.
鸟体本构模型及其参数的确定是影响鸟撞飞机风挡数值模拟结果的重要因素,也是一直困扰大家的难题。
2.
Based on the measured real time signals of bird strike experiment and finite element numerical solutions, this paper constructs a dynamically delayed feed wavelet (DDFW) neural network to inverse the impact loadings.
以鸟撞实验中传感器实测信号为基础 ,结合有限元正问题计算方法与神经网络理论 ,构造小波动态延时反馈神经网络 ,并详细分析了该网络的结构参数、对比了网络单点应变输入法、两点应变输入法以及三点 (多点 )应变输入法的训练效率与反演精度 。
3.
Through a numerical example,the user material subroutine of ZWT nonlinear visco-elastic constitutive model is compiled and the keyword definition method is applied to study failure criterion for aircraft windshield against bird strike.
推导了ZWT犁非线性粘弹性本构方程的增量迭代形式;介绍了LS-DYNA3D中材料子程序和破坏准则的定义方法:通过计算实例编写ZWT型非线性粘弹性材料子程序,并将关键字定义方法应用于鸟撞飞机风挡的破坏准则研究,鸟撞有限元数值模拟采用接触碰撞耦合解法。
3) bird-impact
鸟撞
1.
Dynamic response analysis of bird-impact aircraft windshields based on PAM-CRASH
基于PAM-CRASH的鸟撞飞机风挡动响应分析
2.
A numerical simulation of bird-impact on a blade is studied.
基于显式碰撞动力分析软件PAM-CRASH及其提供的SPH方法,建立了鸟撞平板叶片数值分析模型。
4) bird impact
鸟撞击
1.
An experimental investigation into the arc windshield of a homemade aircraft subjected to bird impact was performed.
完成了国产某型飞机圆弧风挡的抗鸟撞击实验,得到了风挡抗鸟撞击的临界速度及关键点的位移、应变时程曲线等数据。
2.
The parameters and methods for evaluating bird impact damage of fan/compressor blade are discussed.
结合发动机设计准则与设计规范的要求,提出了2个用于评定叶片损伤能力的叶片变形损伤参数和塑性应变损伤参数;经对模型叶片在不同撞击位置进行的鸟撞击损伤评定,证明方法可
3.
In order to predict the blade response caused by bird impact, it is neccesary to establish the bird impact load model at firse, For this purpose ,it is neccesary to determine the impulse, temporal factor and special factor of loads.
为了预估叶片对鸟撞击的响应，首先要建立鸟撞击载荷模型。
5) bird strike avoidance
鸟撞防范
1.
Bird strike is an important reason for aircraft damage and other more disastrous accidents, so more and more attention are drawn onto bird strike avoidance.
由于鸟撞造成的巨大损失 ,鸟撞防范工作日益受到人们的重视。
6) bird-impact test
鸟撞试验
补充资料：鸟苷；鸟嘌呤核苷；9-β-D-呋喃核糖基鸟嘌呤
CAS: 118-00-3
分子式: C10H13N5O5
分子质量:283.24
熔点: 250℃
中文名称: 鸟苷；鸟嘌呤核苷；9-β-D-呋喃核糖基鸟嘌呤
英文名称: 2(3h)-imino-9-beta-d-ribofuranosyl-9h-purin-6(1h)-one；9-beta-d-ribofuranosylguanine；guanine riboside；9-beta-d-ribofuranosyl-guanin；guanosine；2-amino-inosin；vernine；2-Amino-9-beta-D-ribofuranosyl-9H-purine-6-(1H)-one
性质描述: 该品为白色或类白结晶性粉末。熔点250℃。
用途: 主要用于制造无环鸟苷；三氧唑核苷；三磷酸鸟苷钠等药物的主要原料。
分子式: C10H13N5O5
分子质量:283.24
熔点: 250℃
中文名称: 鸟苷；鸟嘌呤核苷；9-β-D-呋喃核糖基鸟嘌呤
英文名称: 2(3h)-imino-9-beta-d-ribofuranosyl-9h-purin-6(1h)-one；9-beta-d-ribofuranosylguanine；guanine riboside；9-beta-d-ribofuranosyl-guanin；guanosine；2-amino-inosin；vernine；2-Amino-9-beta-D-ribofuranosyl-9H-purine-6-(1H)-one
性质描述: 该品为白色或类白结晶性粉末。熔点250℃。
用途: 主要用于制造无环鸟苷；三氧唑核苷；三磷酸鸟苷钠等药物的主要原料。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条