| 1. | Numerical solution method for reservoir backwater storage in reservoir routing based on observed data
基于实测资料的水库动库容调洪数值解法 |
| 2. | By means of the drillstring ' s finite element model and the numerical solution method , and based on the mechanical models of bit / rock interaction , the dynamic models for torsional vibration of cone bits and drillstrings are established
利用钻柱动力学有限元模型的数值计算方法，在考虑了钻头与岩石互作用力学模型的基础上，建立了钻头和钻柱扭转振动动力学仿真模型。 |
| 3. | The software can automatically deducate the character state equation from the power bond graph input by user , then put the result and parameters input by user into the ode file which is required by matlab . matlab can solve the ode file with numerical solution method of ordinary differential equation . so the timedependent solution of system parameters can be gained
该软件从用户输入的功率键合图入手，自动推导出系统的字符型状态方程，并将推导结果同用户输入的各种参数一起输入到matlab所要求的ode文件中，然后采用matlab所提供的常微分方程数值解法对该ode文件求解，从而得到系统各主要参数的时域解。 |
| 4. | Conical roller bearings are the most important supporting parts in automotive rear bridge , interfered initially . after introducing research & development and basic theory of contact problems , theoretical analysis of finite element numerical solution method is made for contact problems of conical roller bearings in automotive rear bridges
本文在对接触问题的研究和发展现状及接触问题的基本理论进行介绍的基础上，对汽车后桥传动锥轴承弹性接触问题的有限元数值求解方法进行了理论分析。 |
| 5. | The dissertation provides a numerical solution method of stable and transient temperature fields as well as thermal stress field in different types of structures under initial temperature values at the boundaries or thermal resources in the structure by use of the finite element method
在土木工程中，温度应力对道路、桥梁、隧道、厂房、高层建筑等都有影响，因此分析温度应力可以对结构采取控制措施，以防建筑结构开裂。本文主要讨论用有限单元法分析温度对结构强度和刚度的影响。 |
| 6. | The thesis focus on the numerical analytical method of curved broadband wire antennas . first , the paper introduced the development of broadband antennas , the common measures to broaden antennas " bandwidth and the study on curved antennas . second , the generalized halen integral equation ( mei ' s equation ) was derived based on the three basic equations of wire antennas by two means and its numerical solution method was discussed
本文就曲线宽频带线天线的数值分析方法展开研究，首先介绍了宽频带天线的发展，实现天线宽频带的常用方法和曲线天线的研究现状，然后在直线加载天线满足的方程的基础上用两种方法推导了曲线天线满足的推广的海伦积分方程( mei ’ s方程) ，讨论了不同基函数下方程的数值解法。 |
| 7. | Abstract : in this paper , using numerical solution method of vector diffraction theory , we discuss the dependence of reflectivity upon structural parameters of subwavelength grating , particularly upon substrate thickness . it can be used as the basis for design and fabrication of binary optical element with proper antireflection property
文摘:利用矢量衍射理论的数值求解方法，研究了亚波长光栅结构参数对反射率的影响，特别是基底厚度对反射率的影响，这些为设计和制作具有优良的抗反射性能的二元光学元件提供了设计依据。 |
| 8. | This paper has presented the calculation formula and numerical solution methods to determine the range and volume of partially cavity , supercavity by using surface panel method , and has predicted the range and volume of unsteady cavitation of propeller by using surface panel method for the first time inland
本文叙述了应用面元法确定非定常螺旋桨局部空泡、超空泡的范围和体积的计算公式和数值求解方法，在国内首次应用面元法预报了螺旋桨非定常空泡的范围和体积。 |
| 9. | Different channel has different shannon limits , only the continuous input and output awgn channel has a compact shannon limit description . but the other channels have no brief description for the limit , so the numerical solution for the limit is needed . this paper introduces the calculation method of multi - dimension integral and linear interpolation , and indicates the usage of these numerical solution methods in the shannon limit calculation
不同信道模型有不同的香农限,只有理想的输入输出均连续的awgn信道有较为简洁的香农限计算,对于其它信道模型的香农限计算难有简明的代数解析解,而只能进行积分方程的数值解计算,所以本文对多重积分的数值解以及线性插值法进行了介绍,并详细的指出了应用数值计算方法计算香农限的过程。 |
| 10. | Abstract : based on the conceptual two - flow model and pic numerical solution method developed in the companion paper , the present paper further investigate the model application in simulation of the typical debris flows . the model validation was carried out with the experimental data obtained by other investigators at dongchuan debris flow observation and research station in yunnan province . predictions were made in terms of the main controlling facetors including the channel slope , flow density and time interval between two blasts of debris flows . the predicted results could well reflect the observations reported by the geographers and sedimentologists
文摘:采用文献[ 1 ]中提出的阵性泥石流运动与堆积的欧拉-拉格朗日模型,模拟了阵性泥石流的运动过程和堆积形态,得出了与地学研究中观测结果较为一致的认识.文中针对影响阵性泥石流的关键条件,重点通过改变密度,坡度和各阵泥石流的时间间隔等参数,分析了这些参数变化对泥石流运动及堆积规律的影响,提出了简化分析整个阵性泥石流的条件.研究表明,应用经试验资料验证的数学模型不但可以方便、快捷地定量描述阵性泥石流的一般特性,而且能够提供关于阵性泥石流运动及堆积的更多细节 |
