体积弹性模量

Introduced the basic principle of the measurement of liquid bulk elastic modulus, designed and assembled the experimental equipment.

介绍了采用超声光栅效应测量液体体积弹性模量基本原理，设计组装了实验测量装置。

Analyzed the variation law of several representative liquid bulk elastic modulus according to the experimental data.

根据实验数据分析了液体体积弹性模量的变化规律。

In order to get the bulk modulus of hydraulic oil, a bulk-modulus measuring device has been designed basing on the definition of the bulk modulus.

摘 要：为了检测油液的体积弹性模量值，根据油液的体积弹性模量的定义，设计了一种油液弹性模量检测装置。

Simulation results shows that when the effective bulk modulusβe and the reaction force f change, the controller is robust.

仿真结果表明，该滑模控制器在体积弹性模量βe和锻件抗力f变化时具有鲁棒性。

The structure data of simulation results at ambient temperature were agree well with the experiments, and the thermal expansivity and bulk modulus of TiO〓 and K〓Ti〓O〓 were obtained.

常温下模拟得到的结构参数能很好的和实验数据吻合。模拟了随温度和压力变化造成的热膨胀系数和体积弹性模量，对本实验室合成的六钛酸钾晶须的性能进行了预测。

Second, the equivalent bulk modulus of elasticity of brake cylinder and brake line are derived out, the lumped parameter model of brake line is developed, the dynamic performance of the model are analyzed, the effect of physical and geometric parameters on natural frequency and damping are studied.

其次，计算出制动器的刚度以及轮缸与管路的等效体积弹性模量，采用集中参数分析法，建立了制动管路的理论模型，分析了该模型的时域与频域特性，研究了制动管路及制动器参数对动态特性的影响。

The paper analyzed the influencing factor of bulk modulus and leakage coefficient, it also described the method of self-tuning fuzzy PID design.

本文分析了系统体积弹性模量和泄漏系数的影响因素，自整定模糊 PID 控制器的设计方法。

As a result of oil mixed with air, the system bulk modulus and the leakage coefficient is no longer a constant during the process of pump-control-motor running.The conventional PID controller can't meet the requirement of the dynamic characteristics of the system.

泵控马达系统在运行过程中，由于油液中混入了空气，系统体积弹性模量和泄漏系数不再是恒定的值，常规 PID 控制不能很好地满足系统动态要求。

In this paper we proposed a hypothesis of difference fiber volume fraction and presented expressions respectively. The fiber volume fraction of unit cell is not equal to that of each lamina, which need calculate eachly. The paper also advanced conception of weighted average of three cell's stiffness.

本文提出了差别纤维体积分数的假设，各个纤维束的纤维体积分数与单胞的纤维体积分数并不相等，需要分别进行计算，并分别给出了各纤维束的纤维体积分数计算式；还提出了三单胞弹性模量按比例叠加的思想，并给出了比例计算式，计算出了结果。

First, based on the relations of stress and strain between the whole medium and its macroscopically isotropic constituents, an explicit relation between elastic matrices of the whole medium and its constituents was derived. Combining the explicit relation of elastic matrices with the strain's relation, two coefficient tensors were defined and analyzed to get a general relation between the hulk and shear modulus of the whole medium under the assumption that all the field variables are in a unified coordinate system. Secondly, combining these relations with the classical Hashin-Shtrikman elastic modulus bounds, four new expressions of elastic medium of the whole medium were obtained and compared with the original hounds. Last, these formulae were applied in the computation of effective elastic moduli of clean sandstone saturated with pore water.

首先基于整体介质与宏观各向同性组分满足的应力和应变组分关系，推导出整体介质弹性矩阵与组分弹性矩阵之间的显式关系，联合其应变关系，定义和分析了对应的两个系数张童，并据此导出了相关场变量位于统一坐标系时整体介质体积模量与剪切模量的关系；然后将经典的Hashin-Shtrikman弹性模量边界模型与上述关系式结合，得到4个新的整体介质弹性模量的估算公式，再与原始的Hashin-Shtrikman弹性模量边界进行了比较，最后针对饱和水纯净砂岩介质进行了试算。

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。