查询词典 reciprocating motion

The simulation study mainly concentrates on the following aspects: the relations of attack angle versus caudal fin motion, the phase difference of heaving and pitching motion of caudal fin motion, swimming velocity and body motion, body wave length and body motion, heaving amplitude and body motion, Strouhal Number and body motion.

具体研究内容包括：最大击水角度对尾鳍运动的影响；尾鳍摆动—平动运动相位差对尾鳍运动的影响；游动速度对鱼体运动的影响；鱼体波波长对鱼体运动的影响；尾鳍后缘最大摆幅对鱼体运动的影响；斯德鲁哈尔数对鱼体运动的影响。

Have adopted the new chain-type cutter of tooth form, have realized high speed cut with high speed feed, it is the 3 times of the cutter of reciprocating type that it cuts speed to reach; Operating speed is the 1.5 times of the cutter harvester of reciprocating type; It is the 1.5 times of the cutter harvester of reciprocating type that unit cuts the productivity.

输送带主动带轮与切割器主动链(来源：AcbfbBC论文网www.abclunwen.com)轮同轴驱动，简化了传动，使整机结构紧凑，传动可靠，作业性能稳定，生产性能可靠，从理论和实践上实现了高速切割与高速进给及高速输送的有机匹配。

On the research of reciprocating pump,if the linear motor-driven piston or reciprocating plunger being applied,the structure of reciprocating pump will be greatly simplified.And the movement of the piston can be changed so that the flow of pump is constant;Meanwhile easily to achieve automatic control,and when using the intelligent control system,easily to implement automated production.

在往复泵的研究中，如果采用直线电机直接驱动做往复运动的活塞或柱塞，那么往复泵的结构将大为简化，泵总体结构紧凑，系统效率高；并且可以通过改变活塞的运动规律，使泵的流量恒定；同时便于实现自动化控制，若采用智能化控制系统易于实现自动化生产。

On the research of reciprocating pump, if the linear motor-driven piston or reciprocating plunger being applied, the structure of reciprocating pump will be greatly simplified.

在往复泵的研究中，如果采用直线电机直接驱动做往复运动的活塞或柱塞，那么往复泵的结构将大为简化，泵总体结构紧凑，系统效率高；并且可以通过改变活塞的运动规律，使泵的流量恒定；同时便于实现自动化控制，若采用智能化控制系统，易于实现自动化生产。

Based on description method of damping motion in mechanical vibration, variables movement of generator are divided into two basic motion models: damping oscillation and critical damping motion. Detail methods of extracting damping parameters from simulation data is introduced to establish variable motion models. An approximate method is put forward to simulate low-frequency signal and generator response characteristic, from which motion models and damping parameters of main variables are obtained. The influences of oscillation amplitude, frequency and initial operating point of power system to the motion damping parameters are analyzed.

借鉴机械振动中阻尼运动的描述方法，将低频振荡下发电机主要变量的运动归纳为阻尼振荡和临界阻尼两种基本运动形态；介绍了从仿真数据提取阻尼参数建立参数运动模型的方法，实现对发电机振荡特性的量化分析；提出一种系统侧低频振荡信号的近似模拟方法，并应用于发电机响应仿真，获得了主要变量的运动模型和阻尼参数；分析了系统侧振荡幅度、频率以及初始工况对发电机功角振荡的影响。

This proposal has been tested in the present study, in a second-order motion configuration, which was assumed to be irresolvable for the linear filter model. A luminance defined first-order motion and a motion-contrast defined first-order motion were used as control conditions. The results suggest that there was no significant difference between the amplitudes of the flash-lag effect in the second-order motion and in the first-order motion.

用视网膜外推机制不再有效的二阶运动刺激取代前人实验中的一阶运动刺激来研究闪现滞后现象，发现在视网膜推断机制失效的情况下，闪现滞后现象并没有减小，而是和一阶运动刺激条件下的量相当。

Around the topic, the weak points of the traditional platform is analyzed first, such as complex arithmetic, long calculating time, high needs of hardware and so on. A real time control method based on virtual simulation is suggested to separate the complex positive/negative calculation of space kinematic and real time motion control. And a"3-2-1"type 6DOF platform is designed with the reference of the MAST (Multi-Axis Shaking Table) of MTS. The kinematic and dynamic calculation of the platform is finished. According to the calculating result, the control system of the"3-2-1"type 6DOF platform including 6 linear servo electric cylinders is designed and constructed. And the professional software Pro/E is used to do the 3D model and 6DOF motion simulation of the platform. The motion curves of the pistons of the 6 cylinders are exported with the simulation. At last the control software is programmed with Microsoft Visual Basic 6.0 and realizes the functions with the commands of GE series motion controllers. When loading the motion curves exported with the simulation, every cylinder can follow the curve very well and the platform realizes the hoped 6DOF motion.

围绕选题，本论文首先分析了传统的运动平台控制方法所存在的算法复杂、解算耗时长、硬件需求高的缺点，提出了一种基于虚拟仿真的实时控制方法，该方法将复杂的空间运动学正、反解与实时运动控制相分离；之后，参考MTS公司的MAST多轴振动平台，设计了新型的"3-2-1"型六自由度平台，并进行了运动学及动力学计算，根据相关计算结果，设计与搭建了包括驱动6个直线伺服电动缸在内的"3-2-1"型六自由度平台控制系统；接着，使用Pro/E对"3-2-1"型六自由度平台进行了三维建模和六自由度运动学仿真，并由仿真直接获得了6个直线伺服电动缸的活塞杆的相应运动曲线；最后使用Microsoft Visual Basic 6.0编写了控制软件界面，通过调用GE系列运动控制卡的各种命令函数实现了控制系统的相关功能，而当加载仿真得到的各缸运动曲线后，每缸均能很好地跟踪输入曲线，使平台实现了期望的多自由度运动。

Although these kinds of motion events have their own specific characteristics, they are related to factive motion closely, for fictive motion, statal motion and temporal motion are all evolved from factive motion.

除了&述+下去&短语中物理空间位移事件义的出现频率少于时间位移事件义之外，其他述补短语中物理空间的位移事件义在各事件义中都处于主要地位。

Reciprocating pump is a positive displacement pump is dependent on the piston pump cylinder for reciprocating motion to change the volume of work, so as to achieve the purpose of transmission fluid.

往复泵是容积式泵的一种，是依靠泵缸内的活塞作往复运动来改变工作容积，从而达到输送液体的目的。

Reciprocating pump is a positive displacement pump is dependent on the piston pump cylinder for reciprocating motion to change the volume of work, so as to achieve the purpose of transmission fluid.

杂谈 往复泵是容积式泵的一种，是依靠泵缸内的活塞作往复运动来改变工作容积，从而达到输送液体的目的。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。