动力

Then through dynamical analysis, every instantaneous acceleration distributing of slope under dynamical earthquake can be got too. According to this result, adding earthquake force to structure by way of inertial force, this paper analyses the slope stabilization by using FEM strength reduction method and gains every instantaneous safety factor and its corresponding slide. Curves of safety factors versus duration can be made by curvefitting. By safety factors versus duration curves and slides, we can value structure's quakeproof stabilization and point its slide out. By these principles, programs of FEM stabilization analysis for each moment are organized.

首先通过三维非线性有限元静力分析得到动力分析的初始应力，再进行动力分析得出边坡在动力作用下每一瞬时的加速度分布，根据每一瞬时的加速度分布的结果，将地震作用力作为惯性力加在结构上，用有限元强度折减法进行边坡稳定分析，得出在地震动力作用下每一瞬时的安全系数及对应滑裂面，拟合可得到一条安全系数随时间变化的曲线，根据这条安全系数时程曲线及滑裂面，综合得出结构的抗震稳定安全系数及对应的滑裂面。

First, we made a model of exhaustive exercise in rats, and used sucessfully the model in this study. We studied the effects of exhaustive exercise on adhesive behaviour of leukocytes in mesenteric venules by using an intravital microscope video system Its results indicated that the adhesiveness of circulating leukocytes to mesenteric venules enhanced after exhaustive exercise in rats.

首先，本文以游泳方法建立了大鼠模拟运动力竭模型，并成功地将此模型运用到本研究中；设计制作了肠系膜固定有机玻璃板，组成了一套活体显微观察实验系统；研究了大鼠运动力竭前后肠系膜微循环中白细胞粘附行为，结果表明：大鼠运动力竭后肠系膜微循环血流流态发生了明显的改变，大鼠运动力竭后肠系膜微循环中白细胞粘附性增强、白细胞滚动速率降低、在体白细胞变形性减小，将影响微循环正常的灌注，是导致微循环障碍发生发展的一个重要原因，进而最终表现为机体运动能力和运动质量下降。

Rumjantsev used Hamilton's principle with Lagrange's multipliers to generate the dynamical equations of a rigid-fluid coupled system in 1954 and the dynamical equations and their dynamical boundary conditions of a fluid-elastic coupled system in 1969, where the fluid is incompressible and inviscid. In 1990, Liu used Jourdain's principle with Lagrange's multipliers to generate the dynamical equations of a rigidfluid coupled system, where the fluid is incompressible and viscid.

Rumjantsev利用带Lagrange乘子Hamilton变分原理于1954年建立了刚—流耦合系统的动力方程，于1969年建立了流—弹耦合系统的动力方程及其动力边界条件，其中所考虑的流体是不可压无粘液体；Liu利用带Lagrange乘子Jourdain变分原理于1990年建立了刚—流耦合系统的动力方程，其中所考虑的流体是不可压粘性液体。

Introduces a method of taking the value of braking deceleration when the shaft single-rope winding cage was braking,and breaking deceleration when overfall puts forward the gravity of a cage with braking force and the deceleration degree three correlation,puts forward reasonable value characteristic index of safety catch and overfall ,thus attaining to the optimun design of braking force.

介绍了立井单绳提升罐笼在断绳时制动减速度、过放时防坠器制动力的取值方法，提出了罐笼的重力与制动力及减速度三者间相互关系，防坠器及防过放制动力特性系数的合理取值，从而达到制动力优化设计。

The effect of Reynolds number on rudder hydrodynamic performance is also analyzed. Up to the stall angle the computed lift and drag agree well with measurements and other author's calculations, whereas stall angle, lift and drag beyond the stall angle are slightly under-predicted. The solver is used to investigate laminar and turbulent separated flows around a 6: 1 prolate spheroid at high incidence angles and their effects on hydrodynamic forces. The second separation flows are successfully identified in both laminar and turbulent flow simulations.

应用所开发的求解器，以6：1长椭球体为算例计算了回转体在大攻角下定常斜航运动时的三维粘性流场及水动力，对层流流动和湍流流动分别进行了计算，分析了层流与湍流分离流动和涡旋产生的特点及其对水动力的影响；计算结果与他人的试验和计算数据比较，吻合程度良好，表明应用本求解器能够正确模拟这种以层流／湍流分离流为主的复杂粘性流动，得到相当精确的水动力，检验和验证了该求解器精确模拟回转体在大攻角下的粘性分离流动和计算水动力的能力。

The solver is used to investigate laminar and turbulent separated flows around a 6:1 prolate spheroid at high incidence angles and their effects on hydrodynamic forces. The second separation flows are successfully identified in both laminar and turbulent flow simulations. The computations are shown to agree well with available experimental and numerical data and the physics of 3D large-scale flow separations and vortex shedding are confirmed.

应用所开发的求解器，以6：1长椭球体为算例计算了回转体在大攻角下定常斜航运动时的三维粘性流场及水动力，对层流流动和湍流流动分别进行了计算，分析了层流与湍流分离流动和涡旋产生的特点及其对水动力的影响；计算结果与他人的试验和计算数据比较，吻合程度良好，表明应用本求解器能够正确模拟这种以层流/湍流分离流为主的复杂粘性流动，得到相当精确的水动力，检验和验证了该求解器精确模拟回转体在大攻角下的粘性分离流动和计算水动力的能力。

Firstly, based on the Duhamel integral and dynamic reciprocity theorem, the generalized Duhamel integral expression is written to a point in the half infinity space under moving load. Secondly, the train load is considered as a series of centralized loads with fixed distance. The dynamic response expression of a point in frequency domain and frequencywavenumber domain are derived out through the Floquet transform and Fourier transform under a moving load, and then the dynamic response of a point is gotten ...

以Duhamel积分为基础，首先应用动力互等定理，得到了移动荷载作用下，半无限大弹性连续介质空间上任意点的动力响应的广义Duhamel积分表达式；然后将列车荷载简化考虑为一系列具有一定间距的集中荷载，采用Floquet变换、Fourier变换等方法，得到了一个集中移动荷载作用下任意拾振点ξ的动力响应在频域和频率波数域内的表达式，进而由叠加原理得到列车荷载作用下的动力响应解；最后，通过算例说明该算法的适用性。

This thesis based on the combination of production practice and theory study by author in Hunan Sunward Co.

本文是本人在湖南山河智能股份有限公司的生产实习与理论相结合的前提下，分析了潜孔钻机动力头液压回转系统的工作原理，建立了潜孔钻机动力头液压回转系统的工作原理图，研究分析了潜孔钻机动力头回转机构各种执行元件对机构回转的工作原理的影响，通过对动力头回转液压系统的回路压力损失和液压系统的发热温升的验算，获得了具有设计指导意义的数据，取得了较显著的效果。

At 135 mm depth and 0.28 m/sec speed, the biomimetic furrow opener surface with UHMWPE tubular ridges recorded 0.62 kN and 0.17 kW, while at 135 mm depth and 0.92 m/sec speed, the values were 0.91 kN and 0.82 kW. The experimental values of resistance force and power for the conventional surface furrow opener at 100 mm depth, and 0.28 m/sec speed were 0.72 kN and 0.20 kW, while at 100 mm depth and 0.92 m/sec speed, the values were 1.11 kN and 1.0 kW. At 135 mm depth and 0.28 m/sec speed, the conventional surface furrow opener recorded 0.93 kN and 0.25 kW, while at 135 mm depth and 0.92 m/sec speed, the values were 1.50 kN and 1.35 kW.

试验测试结果：当耕深100 mm和耕作速度0.28 m/sec时，实测的普通开沟器的土壤阻力和动力消耗分别为0.72kN和0.20kW；当耕深100 mm和耕作速度0.92 m/sec时，实测的普通开沟器的土壤阻力和动力消耗分别为1.11kN 和1.0kW；当耕深135 mm和耕作速度0.28 m/sec时，实测的普通开沟器的土壤阻力和动力消耗分别为0.93kN和0.25kW；而当耕深135 mm和耕作速度0.92 m/sec时，实测的普通表面开沟器的土壤阻力和动力消耗分别为1.5kN和1.35kW。

The predicted values of resistance force and power for the conventional surface furrow opener at 100 mm depth and 0.28 m/sec speed were0.51 kN and0.14kW, while at 100 mm depth and 0.92 m/sec the values were0.98kN and0.88kW. At 135 mm depth and 0.28 m/sec speed, the conventional surface furrow opener recorded 0.70 kN and 0.20 kW, while at 135 mm and 0.92 m/sec speed, the values were 1.40 kN and 1.26 kW. The predicted values of resistance force and power for the biomimetic furrow opener surface with UHMWPE tubular section ridges at 100 mm depth and 0.28 m/sec speed were 0.45 kN and 0.12kW, while at 100 mm depth and 0.92 m/sec speed, the values were 0.73kN and 0.66 kW.

对于超高分子量聚乙烯材料仿生脊型非光滑结构表面，当耕深100 mm和耕作速度0.28 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.45kN和0.12kW；当耕深100 mm和耕作速度0.92 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.73kN和0.66kW；当耕深135 mm和耕作速度0.28 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.62kN和0.17kW；而当耕深135 mm和耕作速度0.92 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.91kN和0.82kW。

Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录，所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。