| 1. | Conventional analysis and the design of steel frameworks are performed using the assumption that the connections are either fully rigid or ideally pinned
在钢框架的传统分析和设计中，是将框架的梁柱连接假定成完全刚接或理想铰接。 |
| 2. | Through the conventional analysis of the othorgonal testing results , we can initially determine that the best structure parameter of 3 - d ift with staggered arrangement fins
通过对正交试验结果进行常规分析，初步确定肋叉排三维内肋管的肋几何参数的优化方向。 |
| 3. | It is difficult for conventional analysis method to analyze atmospheric environment system globally and dynamically , particularly uncover the essence of complex atmospheric environment system
采用传统的数学分析方法很难对大气环境化学污染系统进行全面、可靠和动态的解析，更无法揭示复杂大气环境系统的内在本质。 |
| 4. | But for semi - rigid connections are complex and variable , in conventional analysis and design of steel structures ， it is usually assumed that the connections between columns and beams are either rigid or pinned
但由于半刚性连接的复杂性和多样性，在钢框架的分析和设计中，还是将框架的梁柱连接假设成为完全的刚接或理想的铰接。 |
| 5. | Steel frame with welding joint easily occur brittle collapse because of having a low ductility at joints then ， a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads and the using steel qualities of bracing system and joints are small so adopting a semi - rigid jointed steel frame is economical and stable but for semi - rigid connections are complex and variable ， in conventional analysis and design of steel structures ， it is usually assumed that the connections between columns and beams are either rigid or pinned the analysis of steel frames adopting the assumption can simplify the procedure of analysis and design ， but cannot precisely reflect structural practical circumstance and the errors of calculating results are large ， even ， get incorrect conclusions semi - rigid connection was referred to in chinese code for design of steel structures ( 2001 ， 10 ) ， however ， it isn ’ t specified how to apply semi - rigid joints in design in fact it cannot be carry out the purpose of the paper give a calculating method that accords practical engineering and easily put into effect worthwhile it is going to promote the development of semi - rigid jointed steel frame in design and heighten structural stability in the paper ， at first some commonly employed methods for the modeling of connection behavior are introduced richard abbott function modeling of connection is adopted for extended end plate bolted connection by the 34 test data comparing to regression analysis indicate richard - abbott function modeling of connection represents an excellent fit to test data then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring ， base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects ofj ointed flexibility geometric non - linearity and shear forces in the connection deformations have been considered in and fixed - end forces are modified finally , a program for calculating semi - rigid with incremental - iterative method has been
本文的目的就是为半刚性连接钢框架的设计提供一种既符合工程实际又简便易行的计算方法，供规范使用过程的补充、延伸或参考；同时，也将促进半刚性连接钢框架设计技术的发展，为提高结构安全性能、节省工程成本发挥应有的作用。本文首先介绍了常见的几种应用较为广泛的梁柱连接弯矩转角关系模型，在分析比较的基础上，选用richard ? abbott函数模型作为外伸端板连接弯矩转角关系模型，通过对34个外伸端板连接的实验数据与回归分析得到的参数比较可知，经回归分析得到的此模型参数与实验数据符合较好。然后用弹簧表征连接点的转动刚度，根据梁的转角位移方程推导出半刚性连接的刚度矩阵，在单元刚度矩阵中考虑了节点柔性、几何非线性和剪切变形的影响，并对固端力进行了修正，最后用增量迭代法编制有限元程序进行计算和分析。 |
| 6. | Digital simulations reveal many valuable characteristics of the power system low frequency oscillation . the limit of conventional analysis and the appearance of new technique such as wams together with the advance of the nonlinear theory , require a new method for oscillation research of power grid , which can combine small and large disturbances analysis effectively
论文指出，由于传统小信号稳定分析方法的局限性，及动态监测设备和非线性理论等新技术与理论的迅速发展，有必要研究新的振荡分析方法，以更加有效地揭示互联系统小扰动、大扰动后的振荡机理，并研究相应的控制策略。 |
| 7. | Firstly , the predesign is carried out by use of the conventional analysis , and then the acceleration curve of the cam driven component is processed and revised discretely according to the requirements of dynamics performance . . the design equation based on a refined finite - difference algorithm is established and the calculating process is realized by the computer programs . consequently , the cam profile with good performance can be attained
该方法先用常规解析法作初步设计，根据动力性要求对从动件加速度曲线进行离散化处理和修正，再用有限差分法建立凸轮型线的设计方程式，通过计算机程序进行计算求解，因而可以获得优良性能要求的凸轮型线。 |
| 8. | In conventional analysis and design of steel structures ， it is usually assumed that the connections between columns and beams are either rigid or pinned . the analysis of steel frames adopting the assumption can simplify the procedure of analysis and design , but cannot precisely reflect structural practical circumstance and the errors of calculating results are large , even , get incorrect conclusions
虽然对连接性能的这种理想化假设简化了钢框架的分析和设计过程，但采用理想的连接模型在很多情况下是不合理的，也不能反映结构工作的实际情况，计算结果误差很大，有时甚至会得到错误的结论。 |
| 9. | In the first part , demonstrations have been focused on the theoretical foundation of the information analysis in the cash flow statement . followed by the second part is the structural issue of the conventional analysis in a company ' s cash flow statement . then the analysis in a company ' s cash flow statement has been further made through the whole financial position of the company
本文主体由四部分组成，第一部分主要论述现金流量表信息分析的理论基础；第二部分主要探讨现金流量表常规分析的体系构建问题；第三部分主要从企业财务状况的全局入手对现金流量表进行分析；第四部分主要从企业战略角度对现金流量表进行更深入的分析。 |
| 10. | Abstract : an imidazole - catalyzed acylation method of phthalic anhydride is applied to the determination of hydroxyl values of reinforcing agent is211 . the analytical error is 5 . 0 10 - 3 . the relative standard deviation of the method is less than 0 . 04 and its coefficient of variation is not more than 5 . 0 10 - 3 . hydroxyl values determined in different batch samples meet the design requirement completely . this method is rapid and simple , it is adaptable to conventional analysis
文摘:以咪唑催化邻苯二甲酸酐酰化的方法测定增强剂is211的羟值，准确度高，分析误差为5 . 0 10 - 3 ；方法精密度好，标准偏差小于0 . 4 ，变异系数不大于5 . 0 10 - 3 ，测定不同批号试样的羟值完全符合商标值，方法快速、简便，适用于常规分析。 |
