查询词典 load

In the analysis, firstly, the flux boundary condition is used to simulate the frictional heat resource between wheel and rail. The non-steady heat transfer between the contacting surfaces of the wheel/rail, heat-convection and radiation between the wheel/rail and the ambient were all taken into consideration. Therefore, a heat coupling model of the wheel/rail in rolling/sliding is put forward to calculate the frictional temperature rise in the wheel and rail. Secondly, after the temperature distribution of wheel/rail, due to friction, is calculated, substitute the thermal load with equivalent fictitious body force and boundary distributed force loaded on the nodes of the corresponding elements. The wheel-load is applied to the center of the wheel.

首先，用热流边界条件模拟轮轨接触界面的摩擦热源，考虑轮轨间的非稳态热传导、轮轨自由表面与环境的热对流、热辐射的影响，建立轮轨滚动接触热耦合有限元计算模型，分析计算轮轨滚、滑工况下的摩擦温升；其次，以求得的轮轨温度场结果作为求解轮轨应力场的已知条件，轮载以集中力形式直接加载于轮心处，将摩擦温升引起的热载荷等效为假想体力和热边界面力，施加于相应的单元节点上，建立了轮轨热—机械载荷耦合作用的热弹性平面应力模型，分析热—机械载荷作用下的轮轨应力场。

In this method, based on the measured strain values, the joint load is calculated by the fitted curve equation and compared with the total load applied during test.

该方法以测量的应变值为基础，由拟合的曲线方程计算接头载荷，并与试验时施加的总载荷对比。

It has become one of the important tasks in the study on modern electric system. At first, this text has briefly introduced meanings, the current development and the main methods which the electric load forecasting are used. This paper aimed at the floatability which the load data had and the nature that neural networks model is easy to fall into part infinitesimal value and low iterative speed, this paper proposed a method based on neural networks and SVM. SVM can dispel the less summation and the larger single point errors of neural networks, and the neural networks could dispel the simplification of the model of the vector support machine.

本文首先介绍了电力系统负荷预测的意义、发展现状和主要方法；针对负荷数据具有浮动的特点以及神经网络模型算法容易陷入局部极小和迭代速度较慢的缺点，提出了一种基于神经网络和支持向量机的混合负荷预测方法，此方法能通过支持向量机消除神经网络的总和较小但单点误差较大的不利现象，而神经网络消除了支持向量机的模型简单问题。

At present, most load systems in China are fluid drive systems; this paper solves two main difficulties in electro-motion system: the realization of speediness and the elimination of the superabundant torque. It can provide some new information in load systems further investigation.

国内现有的加载系统多为液压加载，本文的研究工作解决了电动加载的两个主要难点：快速性的实现和多余力的消除，对加载系统的研究有一定的参考价值。

And a two step follower boost circuit to reduce PFC output voltage which will reduce power losses of the switching loss and conduction loss during loads of light load and typical load.

同时使用阶式输出电压方式低主动修正电的输出电压，以减少当输出负载为轻载(20%)及中载(50%)的时的换

Though the load analysis on the tunnel roof wall-rock in the fault footwall tunnel, this paper solves the problem of the tunnel support of tunneling through the great fault; and though the load analysis on the corresponding wedge of the lower abandoned tunnel, solves the problem of the influence of the lower abandoned tunnel on the upper tunnel floor.

通过对断层下盘巷道顶板围岩的受力分析，解决了煤巷掘进过大断层的巷道支护问题；通过对下部废巷道对应的楔形体的受力分析，解决了下部废弃巷道对上部巷道底板的影响问题。

Therefore, when checking the use of load inertia force, set the load to stop blocking devices and snubber devices, and the elimination of the pressure on the piston rod unreasonable force.

因此，在使用时应检查负载的惯性力，设置负载停止的阻挡装置和缓冲吸收装置，以及消除活塞杆上承受的不合理的作用力。

Under static load, and the impact of lower load mode or hot extrusion press forging die.

此钢系高强度热作模具钢，可用于制造工作温度≥550℃并承受较高的静载荷，而冲击载荷较低的锻造压力机模或热挤压模具。

On this basis, through the MATLAB software to map out the bode diagram of frequency characteristics of load stiffness, the relationship between the load changes frequency and the system stiffness was analyzed, the main parameters affecting the system stiffness were obtained.

在此基础上，通过MATLAB软件绘制出了负载刚度频率特性伯德图，并对负载变化频率与系统刚度的关系进行了分析，得出影响系统刚度的主要参数，为负荷传感型全液压转向系统的设计与改进提供理论依据。

The present paper design content is the expandable belt feeding engine, is transmits the force of traction through between the transmission drum and adhesive tape's friction force, concurrently makes the hauling organization and the load bearing organization one kind by the adhesive tape for the material equipment, expands and contracts the arm rear part establishment to have the expandable hydraulic prop, causes the complete machine length nimble elongation or the reduction, between the supporting roller the included angle increases to causes the belt fastener inclination angle to be possible to amount to 25 degrees, has for estimates in a big way, the transportation is steady, the service is convenient, the area slightly and so on characteristics, brings conveniently to the load, can the widespread application in each kind of bulk collection and distribution center production scene.

本论文设计内容是可伸缩带式给料机，是通过传动滚筒与胶带之间的摩擦力来传递牵引力，以胶带兼作牵引机构和承载机构的一种给料设备，伸缩臂尾部设置有可伸缩的液压支柱，使整机长度灵活的伸长或缩短，托辊之间夹角增大可使皮带机倾角可达到25度，具有给料量大，运输平稳，维修方便，可多点卸料，占地面积小等特点，给装车带来方便，能广泛的应用于各种散料集散地的生产现场。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷