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Modify the non-conforming nominal derivation of BCIZ element according tothe weak continuity condition,obtained convergent element too.

应用弱连续条件,对法向导数不连续的BCIZ元进行修正,得到了收敛的有限元。

Moreover, 3D discrete element code (3DEC) was used to solve the deformation of the high slope in the modes of mixed discontinuousness and degenerate continuousness. The influence of structural plane on the calculated result was discussed, and the stability of the high slope at inlets after excavation and reinforcement was analyzed by comparison of the calculated results in different calculation modes.

运用三维离散单元法(3DEC)进行了混合不连续和蜕化连续2种方式的求解,在比较不同求解方式所得计算位移的基础上,探讨了结构面对计算结果的影响,分析了进水口边坡在开挖、加固作用下的变形状况和稳定性。

Optimization solution algorithm is the most important in topology optimization.Algorithms fit for discrete structure and continuum structure are all investigated. Thecharacteristic and different using limit of both optimization criteria method andmathematics programming method are all analyzed in this paper. OC algorithm and theseries MMA algorithm based on SIMP approach are deducedand used for the topology optimization problem of continuum structure.

优化求解算法是拓扑优化问题求解的核心和关键,本文系统分析了适用于离散结构和连续体结构优化的优化求解算法,重点讨论了 OC 算法和 MP 算法,分析比较了不同算法的特点和适用范围,推导了基于 SIMP 理论的优化准则法和 MMA 系列算法,并将MMA 系列算法应用于连续体结构拓扑优化问题的求解。

Thecharacteristic and different using limit of both optimization criteria method andmathematics programming method are all analyzed in this paper. OC algorithm and theseries MMA algorithm based on SIMP approach are deducedand used for the topology optimization problem of continuum structure. MMA algorithm hasa bad convergence but it has a high computational efficiency, while GCMMA is excellent onconvergence and stability with bad calculation efficiency.

优化求解算法是拓扑优化问题求解的核心和关键,本文系统分析了适用于离散结构和连续体结构优化的优化求解算法,重点讨论了 OC 算法和 MP 算法,分析比较了不同算法的特点和适用范围,推导了基于 SIMP 理论的优化准则法和 MMA 系列算法,并将MMA 系列算法应用于连续体结构拓扑优化问题的求解。

During the calculation the results got by quintic spline kernel was the best so it was chosen as the proper kernel for the SPH simulation. By comparison of the simulation results got by SPH and finite volume method, it was proved that the buffer cells method proposed in the SPH simulation to implement the Dirichlet boundary conditions was accurate, and this is of great importance for the simulation of flows pass a pipe. At last, the SPH method was improved to simulate the liquid-solid two phase flows and the results show that this method was appropriate for the simulation of flows containing viscous fluid and macroscopic solid components. Now the two methods are both able to predict the continuum flows and rarefied flows severally, but the hybrid program still has some aspects to be improved.

首先用标准算例验证了SPH方法的理论模型和计算程序的准确性;通过比较确定选用五次样条核作为计算低雷诺数下的粘性连续流动时的核函数;采用SPH方法和有限体积法分别对同一管道流动进行了对比计算,证明了本文提出的边界缓冲区方法在实现SPH方法中的流体边界条件时的有效性,解决了SPH方法模拟管道流动时的一个关键问题;巧妙地使用SPH方法对化工分离流动中常见的固液两相流及固液耦合作用进行了模拟尝试,获得了较好的结果;在跨尺度计算方面,目前两个子程序已经能够分别模拟连续的和稀薄的二维管流问题,二者的耦合计算程序还处于调试和优化阶段,各个参数对于计算精度和计算速度的影响规律仍在探索中。

In this way, it is easy to regularize discrete scheme and programming. Besides, the numerical solutions can be more steady and the convergent process faster.

为便于统一编程和利用有限边界元素法进行方程的离散,作者对粘性流场的控制方程组进行了标准化处理,通过在连续方程中引入内部阻尼项,使连续方程和动量方程及能量方程具有相同的标准化形式。

There is no significouldt variation between the function of Method 1 and 3 in the indexes of digestive and absorptive function,except the effect on body weight and food intake;as well,model 2 shows no significouldt influence on the indexes besides body weight lose.1.4 ConclusionsContrast the three modeling methods,model 3 is the most obvious and steady method for the establishment of deficiency of spleen YANG.2 comparison on the efficacy of Lizhong Pills influenced by dried ginger and its different components on digestive and absorptive functions and energy metabolism2.1 ObjectivesThis research was designed to observed the different influences of Lizhong Pills formula on the models,which contains dried ginger or its main group of components(volatile oil and water solubles).It would be explored from two levels of material base,single herb dried ginger or its different components,to confirm that the whole effects of Lizhong Pills do mainly depend on its main herb dried ginger in the formula just as the traditional acknowledgement in TCM.Further more,the connotative meaning of dried ginger used as the main herb in Lizhong Pills egthe aspect of pharmacology and chemistry would be preliminary revealed.2.2 MethodsEach group of model rats of deficiency of spleen-YANG were to be duplicated by method 3 for 14 days,and be treated by corresponding drug samples for 8 days.

造模方法1对消化吸收相关药理指标的改变与造模方法3的影响相似,但对模型动物的体重和食量的影响不明显;造模方法2除能使模型动物的体重减轻外,对其他各指标均无显著影响。1.4结论对比实验采用的三种石膏-知母的给药方法,方法3的造模效果最为显著和稳定,即以每日灌胃给药,连续12天,恢复9天,是本实验证实的最有效的脾阳虚证候模型制备方法。2干姜及其不同有效部位对理中丸消化吸收功能及代谢的影响2.1目的通过对理中丸中君药干姜,以及干姜中挥发性成分和水溶性成分对理中丸主要功效影响的研究,从药味和化学成分群两个层次,证实君药干姜及干姜中的主要活性成分群对理中丸整体功效的决定性影响,以初步揭示理中丸中君药核心地位的药理学和化学内涵。2.2方法采用石膏-知母复合造模法制备大鼠脾阳虚证候模型,造模期为14天1;治疗期间各给药组分别给予治疗药物,连续给药8天。

The continuous dialysis realizes the continuous production of the calcium phosphate nanometer biomaterial, avoids fussy intermittent operations and reduces the production cost.

连续透析法实现了纳米钙磷生物材料的连续化生产,避免了繁琐的间歇式操作,降低了生产成本。

Third, by the analogy of multi-point supported continuous beam, the equation for live load deflection was deduced.

不必在吊杆处断开;推导了基于虚拟梁法的新形式相容方程,以建立主缆任意2个连续状态之间的联系;利用多点支承连续梁的求解方法,给出了加劲梁的活载挠度方程。

The viscosity solutions for partial differential equations of parabolic type havethree different basic definitions.The three definitions are equivalent when the equa-tions are continuous.But for the discontinuous equations,the equivalence of themare still unknown.

因为抛物型方程粘性解有三种基本定义法,它们在方程为连续时相互等价,对于不连续情况,它们间关系尚不明确,因而在本章里,我们特别证明了其中二个定义:定义1,定义2之间的关系。

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?