连续方程

The modifined formula of interlaminar stresses is derived and by using continuous conditions.

给出了复合材料层合板壳弯曲变形的高阶位移模式，利用连续条件，导出了层间应力修正公式，并推导了相应的有限元方程。

Nonlinear wave equation; nonlinear intensity; solitary wave solution; nonlinear differential-difference system; compacton; peakon; noncontinuous solitary solution; bifurcation

非线性波动方程；非线性强度；奇异孤立波；非线性微分—差分系统；紧孤立了；尖峰孤立子；不连续孤立波；分岔

Based on Chaboche's Continuum Damage Mechanics Model, this study suggested low-cycle fatigue damage model under nonproportional loading, in which maximum shear stress and mean hydrostatic stress are considered as two basic parameters and nonproportionality of loading path is considered as a damage parameter to enter damage evolution equation which may well describe damage evolution law of low-cycle fatigue under nonproportional loading.

按Chaboche的连续损伤力学方法建立的多轴非比例加载下低周疲劳损伤模型，以最大剪应力和平均静水应力作为两个基本参量，将路径的非比例度作为损伤参量引入损伤演化方程中，可以较好地描述非比例加载下低周疲劳的损伤演化。

Horizontal diffusion was used to control small-scale noise that results from numerical dispersion, nonlinear instability, and discontinuous physical processing, etc. by adding a linear forth-order monotonic horizontal diffusion with orographic flux limiting to the prediction equation.

水平扩散方案是将一个通量受地形限制的线性四阶单调水平扩散项加到预报方程，去控制由数值扩散、非线性不稳定及不连续物理过程等引起的小尺度噪音。

This paper is the fourth section of the serial articles, it's primary contents included: based on the basic theory of the continuous medium mechanics, we have given rotational dynamical equations of the solid inner core of the Earth, taken into account influence of the self\|gravitational potential, of the fluid pressure acting on the instantaneous surface of the SIC, and of the degree 2 tesseral component of the tidal generating potential on the rotation of SIC, and has presented their practical expression, in order of magnitude of O.

中国科学院国家天文台/云南天文台，昆明 650011；2。徐州师范大学物理学系，徐州 221116；3。中国科学院测量与地球物理研究所，武汉 430077摘要：本文是序列文章的第四篇，其内容包括：基于连续介质力学的基本理论，给出了固体外核自转的动力学方程，考虑了地球的自引力、液核对内核边界的压力和二阶外部引潮力位对SIC自转的影响，并在O的量级上给出了其实用的表达式。

At the same time, variational equations, their finite element formulations and numerical convolved integration algorithm of the model in current configuration usually called co-moving coordinate system are given.

基于非线性几何场论，建立了材料非局部连续模型、变分方程及相应的实时拖带系大变形有限元数值模型，设计了这一模型的数值卷积算法。

In general, the major results are:(1) Established the geometrical model for the enwinding of the wire rope in the roller, such as the inclination of the wire rope and the climbing equation of roller in the commutation process;(2) Established the tensile force kinetic model for the enwinding wire rope used the Lagrange kinetic equation and the continual kinetic theory in the start up and retard moment. Solved the equations by the method of modal analysis and separation of variables(3) Based on the analysis on the enwinding mechanism of the wire rope, we did the research on the mechanics behavior of the wire ropes enwinding process.(4) According to the research above, we made the computer program to solve the mechanics models. And after parametric analysis, we made the suggestion for the improving of the current wire rope enwinding system.

主要研究工作有：(1)建立了钢丝绳在滚筒缠绕几何模型，研究了钢丝绳缠绕过程极限偏角及换向过程在滚筒爬坡机理及几何模型；(2)依据LAGRANGE系统广义动力学方程、连续体动力学理论分别建立起升系统启动及制动过程钢丝绳缠绕快绳拉力的动力学模型，并分别采用模态分析法及分离变量法求解；(3)结合对钢丝绳在钻机滚筒缠绕机理分析的基础上，研究了钢丝绳在滚筒缠绕过程力学行为；(4)编制计算机仿真程序对上述模型进行求解，在参数分析的基础上提出对目前钢丝绳缠绕系统结构改进建议。

Established the tensile force kinetic model for the enwinding wire rope used the Lagrange kinetic equation and the continual kinetic theory in the start up and retard moment.

依据LAGRANGE系统广义动力学方程、连续体动力学理论分别建立起升系统启动及制动过程钢丝绳缠绕快绳拉力的动力学模型，并分别采用模态分析法及分离变量法求解

Firstly,based on the WR Sexton method,the method and mathematic models of supplementing the sub-idle rotating component characteristics is presented.Secondly,the turbofan windmilling high-low pressure rotor co-working equations and the whole engine co-working equations are established.lastly,a turbofan engine windmilling characteristics under various windmilling conditions are simulated and analyzed.

首先，基于不可压流理论，附以可压缩效应修正的指数法发展了补充慢车转速以下部件特性的计算模型和计算程序；其次，根据流量连续、压力平衡、功率平衡、燃烧室进出口总温相等及转速相等等约束条件建立了风车状态时涡扇发动机高低压转子及整机的共同工作方程；最后发展了具有一定计算精度的涡扇发动机风车状态特性计算模型和程序，并以某型涡扇发动机为例，计算分析了不同飞行条件下发动机的风车特性，从计算结果看，其趋势是合理的。

The Update Lagrangian formulations of deck beam finite element in transverse stripe are induced based on the three-dimensional continuum virtual work incremental equilibrium equation, and the effect of large deformation is taken into consideration.

基于三维连续体的虚功增量方程，导出了横向条带板段单元的UL列式，并考虑了板段单元位形变化的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。