结构方程

By representing the uncertain parameters as interval numbers, the governed equations of the structure are obtained by means of the interval finite element method.

基于区间模型的结构静力分析将结构系统中的不确定性参数用区间数来表示，建立了系统的区间静力有限元控制方程。

In this paper, a free vibration equation of the semi-rigid frame structure is built. The formula to calculate the natural periods is deduced. Furthermore, the effects of semi-rigid connection on natural periods are studied.

建立了半刚性连接框架结构的自由振动方程，推导出半刚性连接框架结构基本自振周期的计算公式，分析了连接刚度对基本自振周期的影响。

Based on the classic theory of the capital structure and the three theorem of Modigliani-Miller, I use the stochastic equation as a tool to get the model of the capital structure.

在分析和借鉴西方资本结构理论的基础下，结合连续时间的Modjgliani-Miller的三个定理，考虑到市场的不确定性及汇率的波动性，利用随机偏微分方程理论，对企业的资本结构进行分析，从而得到企业总价值的模型。

Based on the dynamic characteristic of an original model, the transform analysis of undamped system equation is performed with the frequency characteristic functions at designated modification freedoms, and the general expressions of local mass and stiffness parameters are derived.

该方法根据原结构模型的动态特性，利用与调整点自由度相关的频率特性函数，通过对无阻尼自由振动方程的推导，给出结构局部质量或刚度调整的通解。

The load fatigue stress coefficient used in the load stress calculation for the porous concrete as undersurface of the cement concrete pavement were derived.

根据疲劳方程提出了以多孔混凝土作为水泥混凝土路面下面层应力计算的荷载疲劳应力系数，沥青路面基层层底拉应力验算的抗拉强度结构系数，建立了进行路面结构设计的轴载换算模型。

Motibity changed by gear-box in direction and rotate speed is transferred to the blade axis on the right side to drive the blade axis. blade axis'parameter, blade assembling frame and blade assembling means are ascertained. The load and movement of the blade axis are analyzed. And the best blade rotate speed is ascertained. According to the request of no-tillage soil, the appropriate furrow openers are chosen. They are staggered and assembled in two rows .According to the sliding cutting request, the crucial parts of the anti-blocking——the sliding cutting blade, its edge curve is analyzed and designed in principle. The academic curve function is gotten. Combined with working practice and technics request, the blade's figuration parameter is designed, 65Mn is chosen as the material for blades. The working load is analyzed. And the intension of the sliding cutting is analyzed and checked with ANSYS software. At last, the spring rack of the suppress wheal is analyzed in principle. The theory and parameter of designing the spring rack of the suppress wheal. Experiment indicated that the anti-blocking capability of this anti-blocking equipment was excellent.

设计出适合此防堵装置的动力传输方案，动力经变速箱变向变速后从右侧传给刀轴，驱使刀片切割秸秆；确定出了刀轴的参数、刀片的安装结构和安装方法，对刀轴的受力和运动进行了分析，确定出了刀轴最佳转速；根据免耕地的要求，选择恰当的开沟器，并采用双排错位安装的办法，避免了"瓶颈"现象的发生；根据滑切的要求对此防堵装置的关键部件——滑切刀片的刃口曲线进行了理论分析和设计，得到了刀刃的理论曲线方程；结合生产实践及工艺要求，设计出刀片的外形参数，选择65Mn作为刀片的材料；分析和计算了刀片在工作中承受的载荷，运用ANSYS 软件对滑切刀片的强度进行了分析校核；最后对镇压轮的弹簧支架结构进行了理论分析，提出了设计镇压轮弹簧支架的理论和参数依据。

My main research work is listed as follows: 1. Considering structure characteristics of high aspect ratio flexible wing, features of flat-straight-wing and backswept wing, the aeroelasticity of high aspect ratio of flexible wing, its structure model and aeroelastic dynamics equation of flexible wing have been studied.

针对大展弦比柔性机翼的结构特征，并考虑到平直机翼和后掠机翼的特点，对大展弦比机翼的气动弹性进行分析，分别建立其结构模型，并推导出柔性机翼气动弹性的动力学方程。

Firstly we test the stability and cointegration of data, then perform the test of Granger casuality, lastly according to the aboved results, acquire of the regression equation of industry structure 、 infrastructure and logistics cost.

顺序上首先对数据进行稳定性和协整性检验，然后进行格兰杰因果检验分析，最后针对协整性和格兰杰检验结果，对物流成本、三次产业结构和基础设施数据进行回归分析，得出产业结构、基础设施与物流成本的回归方程。

As KKД-500 gyratory crusher has large nip angle,linear steep crushing chamber profile,different throughputs of cross sections along the chamber height,it has poor crushing performance and short liner service life.Based on the structural analysis of the original crushing chamber,in the design principle of variable nip angle,the curve equations for moving cone lining and the fixed cone lining were setup by multi-stage fitted curves.

针对KKД-500旋回破碎机大啮角、直线陡锥破碎腔型，沿破碎腔高度各个截面的通过能力不尽相同，其破碎性能差，衬板使用寿命短的情况，在分析原旋回破碎腔型结构的基础上，按照变啮角设计原则，采用多段二次拟合曲线分别建立动锥衬板和定锥衬板曲线方程，利用计算机绘制衬板曲线，确定衬板结构，并优化破碎腔型。

As kkд-500 gyratory crusher has large nip angle,linear steep crushing chamber profile,different throughputs of cross sections along the chamber height,it has poor crushing performance and short liner service life.based on the structural analysis of the original crushing chamber,in the design principle of variable nip angle,the curve equations for moving cone lining and the fixed cone lining were setup by multi-stage fitted curves.lining curves were plotted by computer,the lining structure determined,and the...

针对kkд-500旋回破碎机大啮角、直线陡锥破碎腔型，沿破碎腔高度各个截面的通过能力不尽相同，其破碎性能差，衬板使用寿命短的情况，在分析原旋回破碎腔型结构的基础上，按照变啮角设计原则，采用多段二次拟合曲线分别建立动锥衬板和定锥衬板曲线方程，利用计算机绘制衬板曲线，确定衬板结构，并优化破碎腔型。通过对铝土矿的破碎试验表明，采用新型破碎腔型，其破碎性能和破碎产能显著提高。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷