瞬态

First of all, this paper analyzes the distributing situation of sectional temperature of two steel frame models within an hour utilizing the transient thermal analyse module of ANSYS;Secondly, carries on the failure analysis to two steel frame models at high temperature and obtains the fire-resistant limit and critical temperature of steel frame, utilizing the static nonlinear analyse module of ANSYS and considering the influence of geometry nonlinearity and material nonlinearity; Finally, according to the fire-protection designing requirement of structure, deduce a method to computer the thickness of fireprotection layer for steel structure and ask out the thickness of fireprotection layer of two steel frame models according to this method .

首先，利用ANSYS瞬态热分析模块，分析出两个钢框架模型在一小时内钢框架的截面温度场分布情况；其次，利用ANSYS静力非线性分析模块，综合考虑几何非线性及材料非线性影响，对钢框架模型在高温下进行失效分析，分析出两个钢框架的耐火极限及临界温度；最后，根据结构防火设计要求，推导出一种钢结构防火层保护厚度的计算方法，并据此方法求出两个钢框架模型的防火层厚度。

In order to verify the accuracy of heat transfer coefficient,2D nonlinear finite element axisymmetric model is established by the means of finite element software MSC.Marc, which is utilized to simulate the transient temperature field coupled with phase transformation process and nonlinear synthetic surface heat transfer coefficient of several typical steels in the different quenchants.

Marc作为模拟平台，建立了淬火过程二维非线性有限元模型，模拟淬火过程中的瞬态温度场，在模拟过程中以多种常用钢在不同淬火介质中的非线性表面综合换热系数为边界条件，同时耦合了相变过程的影响。

The temperature distribution in two kinds of solid fuel combustion have been measured instantly by BOXCARS with single laser pulse.

用单脉冲交叉相干反斯托克斯喇曼散射技术测量了两种不同固体燃剂的瞬态燃烧场的温度。

Besides improved transient response, this cone adds stiffness to relieve stress concentrations that may accumulate at the base of the cone under high power and high-pressure applications.

除了改善瞬态响应，这锥增加了刚度，以减轻应力集中，可能在积累的基础下锥高功率和高压力的应用。

The author has studied large amount of literatures, set up comprehensive control methods for stationary and transient engine control and introduced a new closed-loop observer and nonlinear fuel film compensator based AFR control method.

作者在查阅大量参考资料的基础上建立了完整的基于发动机平均值模型的汽油机静、动态控制模型，提出了基于发动机闭环状态观察器和非线性油膜补偿器模型的瞬态空燃比和启动工况空燃比控制方法。

The dynamic response of the large crosssection shallow tunnels in new sand loess under viscouselastic boundary is calculated by means of transient dynamic FEM so as to find out the weak points of the lining and the stress, deformation and safety of the tunnel structure.

对大断面浅埋砂质新黄土隧道，利用瞬态动力学有限元方法，计算了粘弹性边界条件下，隧道在Ⅷ度地震荷载作用下的动力响应，找出衬砌的薄弱部位和结构的受力、变形及安全性，为设计提供指导和参考作用。

The displacements, stresses and pore pressures change with time are analyzed in the paper.

分析在瞬态载荷作用下位移、应力和孔压随时间的变化情况。

It has been found that the magnitude of the transient photovoltaic peaks of the cell increased with increasing the intensity of the incident light.

随着 3种波长激发光脉冲强度的增加，瞬态光电压信号均增强。

The method of ignition transient interior ballistic calculat ion of solid rocket motor was presented. Many factors influencing the performance of interior ballistic such as e rosive burning,friction,pressure velocity were taken into consideration.

探讨了固体火箭发动机点火瞬态一维非定常内弹道模型，综合考虑侵蚀燃烧、加质、摩擦、压力升高速率等因素对内弹道性能的影响，建立控制方程组并采用隐式差分方法结合特征线法求解，应用VC++。

The relation between reactivities of chars of Heshan coal and their burnouts is studied.

本文更新了煤焦反应性在煤焦燃尽过程中具有不变性的概念，文中首次提出了煤焦瞬态反应性的概念，研究了煤燃烧过程中焦的反应性与燃尽度的关系。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。