| 1. | Camber stiffness coefficient 外倾刚度系数 |
| 2. | Glazing and mirrors . insulating glazing . determination method of the stiffness coefficient kv and of the distortion ability 玻璃.镜子.隔热璃璃.刚性模量kv和扭曲能力测定方法 |
| 3. | The method for design thin - wall core box cast - in - site concrete hollow floor using common structural computing software is put forward and the scale for the magnifying stiffness coefficient of the spandrel beam and middle beam is discussed 5 、提出了采用常用的结构计算软件计算薄壁箱体现浇混凝土空心楼盖设计的方法,提出了边梁和中梁刚度放大系数的建议。 |
| 4. | Each parameter affecting to its natural frequency and vibration characteristic is analyzed ( such as the supporting stiffness coefficient , the supporting distance , the internal pressure and the velocity of fluid in the pipeline ) 分析了各参数(支承刚度系数、支承跨距、管内压力、管内流体速度)对振动特性的影响;对速度波动、压力波动对固有频率的影响作了探讨。 |
| 5. | An effective and well robust unstructured dynamic grid method is developed to solve the unsteady aerodynamic problem . on the basis of classic linear spring analogy , several modified methods for the linear spring stiffness coefficient is introduced 在现有的经典线性弹簧方法的基础上,通过对网格单元边、面和体的考虑,引入了对线性弹簧倔强系数诸如抗拉、抗扭和抗压等多种修正方法。 |
| 6. | And the impact of every parameters of f - ved element , stiffness coefficient and damper coefficient of ved element , normal stiffness , tangent stiffness and sliding friction of frd element and the cross - section area of the brace on the capability of dissipating vibration energy is computed and analyzed 并对f - ved单元中ved单元的刚度系数、阻尼系数、 frd的法向刚度、切向刚度、滑动摩擦力及支撑横截面面积等参数对单元阻尼效果的影响进行了分析研究。 |
| 7. | In the test , static - dynamic method is used to measure the stiffness , the eight stiffness coefficients of the radial part and the two stiffness coefficients of the thrust part can be obtained though loading slowly to the testing bearing which is in a equilibrium position 首先,对处于平衡位置的测试轴承分别沿水平方向、铅垂方向及轴向缓慢施加载荷,根据静动法原理求得各个转速下测试轴承径向部分内、外膜8个刚度系数以及推力部分内、外膜2个刚度系数。 |
| 8. | By the test of anchor cable pull - out intensity , research is carried on anchor capability , stiffness coefficient and prestress losses of anchor cable in reinforcing similar soil slopes . the mechanisms of reinforcing similar soil slopes by prestressed anchor cable sash ( beam ) are studied by the method of combination of field test , theory analysis and numerical simulation , as a result , the calculational pattern of internal force of anchor cable sash ( beam ) is put forward 本文通过大量野外调查,提出类土质边坡的概念,并分析了它不同于一般粘性土边坡的特性;通过锚索抗拔试验研究了类土质边坡的锚固力大小、锚索刚度系数和锚索预应力损失情况;通过现场试验、理论分析和数值计算相结合的方法,研究预应力锚索框架(地梁)加固类土质边坡的机理,提出预应力锚索框架(地梁)的内力计算模式。 |
| 9. | With synthesizing the relevant other internal and external researchers " the achievements of theory and the results of experiment , the follow work have been done in this project : revising the formulas of ground stiffness coefficient and the mass of vibrating soil and the dynamic affecting degree of depth , which apply the theory of elastic half - space and the knowledge of the soil mechanics and consider the influence of the soil characteristic and inertial action , the interaction between foundation and ground , the diverse load ; making the model of ground and foundation system calculating natural frequency by using the big - scale software supersap which is for special purposes of finite element analysis ; according to the experiment analysis , correcting and adjusting the finite element model in order to have it accord with the fact and meet the engineering demands ; doing the vibrating experiment for testing the results of the theoretical analysis and the finite element calculation ; summing up some regulars of the ground stiffness 本文综合参考了国内外其他学者的理论成果和实验结果,进行了如下研究工作:运用弹性半空间理论和土力学的知识,考虑土体特性和惯性作用、基础与地基的相互作用以及不同荷载形式等因素的影响,对动力机器基础进行了严密地理论分析,修正了地基刚度、参振土质量和动力影响深度的计算公式;利用专门用于有限元计算的大型分析软件supersap对地基基础体系进行了建模计算,根据实验分析,对有限元模型不断地进行修正和调整,使其更加符合实际情况,满足要求;通过振动实验对理论分析和有限元计算结果进行了验证;总结出了一些地基刚度的变化规律。 |
| 10. | By using the solution developed and the frequency - dependent stiffness coefficient and damp coefficient , the dynamic behavior , especially the one concerned with the variation of the dimensionless maximum response along the depth , for the pile with finite length or with infinite length was studied . it was shown that to simplify computation a pile of finite length can be taken as the one of infinite length if the ratio of pile length to its diameter ( i . e . lid ) is greater than 15 利用所得解,采用与频率相关的刚度系数和阻尼系数的近似表达式,对有限长桩和无限长桩的动力特性特别是对最大无量纲响应沿深度的变化曲线进行了参数研究,表明在常见桩土参数下,当长径比大于15时,可将有限长桩视为无限长桩以简化计算。 |