一般而言,我们所知道的所有滑翔机它们的形体结构表现出它们潜在的空气动力学……但当你看到没有任何一只蚂蚁明显显示出的直线下降能力。
In general, all the gliders that we know of have some aspect of their body shape that shows that they have some kind of aerodynamic potential... .
将身体绷成直线会减少阻力增加核心动力。
Move the body into a straight line to reduce drag and increase core power.
另外,车辆动力传递并非都是直线传递,其中的万向节就是为了连接非直线的两个传动件的。
In addition, vehicle power transmission lines are not transfer, which is to connect the linear velocity of two transmission.
这提供了直线运行往往作为动力,推动回后方锭。
This provides straight running as driving forces tend to push back the rear spindles.
描述北京质子直线加速器RFQ的参数选择及束流动力学设计研究,给出了BPL-RFQ的主要参数。
The choices of parameters and design study of beam dynamics for the BPLRFQ are described in this paper.
内燃式水动力系统将传统内燃机与柱塞式水泵技术集成为一体,直接利用活塞往复直线运动输出水动力。
Internal combustion water power system integrated traditional internal combustion engine and plunger pump technique, made directly use of the rectilinear motion of plunger for output water power.
对直线电动机的推动力和悬浮力也做了具体分析和计算。
Furthermore, the driving force and magnetic levitation force of linear motor are figured out.
应用牛顿—欧拉方法建立了由直线音圈电机驱动的隔振平台的完整动力学模型。
The entire dynamic model of the vibration isolation platform driven by the linear voice coil motors is developed with Newton-Euler method.
分析了圆筒型直线电机的性能及其作为井下泵动力系统的优势和应用前景,提出了直线电机结构改进方向。
The paper analyzes the characters of cylinder linear motor and the advantages and application future as the well pump drive system, and mentions the its structure modification direction.
通过运动分析给出了实现径向直线伸缩运动的必要条件,进行了净化机器人的运动学与动力学分析。
According to motion analysis, the necessary conditions for realizing the radial rectilinear motion were given and the kinematics and dynamic analysis of the cleaning robot were discussed.
工作台带动工件往返做直线运动,电机输出动力带动抛光轮旋转接触工件进行抛光,抛光轮上加固体或液体两种抛光蜡作为抛光介质。
Workbench drives workpiece for linear running to and for; polishing machine provides power to drive polishing wheel to turn and polishing wheel as the polishing media.
内燃式水动力装置将传统内燃机与柱塞式水泵技术集成为一体,直接利用活塞往复直线运动输出水压能。
The device integrated traditional combustion engine and plunger pump technique, made directly use of the rectilinear motion of plunger for outputting water power.
本文通过建立直线电机列车—桥梁体系动力分析模型,对直线感应电机列车作用下桥梁和车辆的动力响应进行了分析。
In this paper, by establishing a dynamic analysis model of LIM train-bridge system, the analysis on the responses of bridge and cars under the action of running train was conducted.
提出一种以压电叠堆为驱动动力源的新型精密直线驱动器方案。
A new type of precise linear actuator using the piezoelectric stack as actuating element was presented.
基于结构参数,采用简洁的直线电机推力模型,建立了平台的动力学模型,并通过仿真和扫频实验对所建模型加以验证。
Finally, based on the structural parameters and the simple force model of the linear motor, the dynamics models of the stage is built and verified using simulation and sweep testing.
立定向上变换到快步的最后一项指导:训练的时候,教你的马充满 动力地向前走直线进行快步。
A last tip for the upward transition halt to trot: in your training, teach the horse to move off straight into trot, using plenty of impulsion.
结果表明:内氧化动力学曲线,前期服从抛物线规律,后期服从直线规律。
The results show that the kinetic curves of internal oxidation obey parabolic law in initial stage and linear regularity in later stage.
氧化动力学曲线均为直线型。
The isothermal oxidation kinetic curves follow linear rate law.
当向前直线行走时,后腿是主要的推动力量。
The principal propelling power is furnished by the back legs which travel straight forward.
对压缩永久变形和压缩应力松弛性能指标进行经验直线化外推估算,得出特定温度下的性能随老化时间变化的动力学经验估算方程。
With calculating property index of compression set and stress relaxation, it obtains a calculation formulation that property changes along with aging time at the special temperature.
在左、右动力腔的交替驱动下,HFPE的活塞组件在腔体中作往复直线运动,同时泵出液压油驱动负载工作。
In a HFPE, the free piston assembly is driven back and forth between two outer dead centers by fuel energy, and at the same time hydraulic oil is pumped out for energy.
针对直线电机驱动的AMD控制系统,进行指令力、反馈驱动力、实际驱动力及控制系统时滞的性能试验。
For an AMD control system driven by linear motor, the performance of directive force, feedback driving force, actual driving force and time lag were tested.
建立了微型管道机器人在直线管道、弯曲管道的运动学分析和驱动力分析模型,为驱动力外置提供了控制依据。
The kinematics model and driving force model for the micro in-pipe robot in line pipe and bending pipe are established, which can provided control basis for external power.
永磁同步直线伺服电机的机电动力学系统是一个多变量、非线性、强耦合的系统。
The electromechanical dynamics system of permanent magnetic synchronous linear motor is a multivariable, nonlinear and strong coupling system.
该装置以直线电机为动力源,利用铰杆间的角度效应进行输出力的放大。
The output force can be enlarged through the angle function between toggles.
重载列车在直线、曲线和坡道上牵引、惰行和制动时的动力学性能;
The dynamic performance while heavy haul train traction and braking on straight lines, curves and ramps railway road condition;
从现有情况看,在这一系统中采用永磁直线同步电动机作为主要动力源是最好的方案之一。
So far, Permanent magnet linear synchronous motor as a primary drive source is one of the best subjects in this field.
通过动力电缆给井下直线电机供电后产生交变磁场,永磁体动子在交变磁场作用下带动泵柱塞上下往复运动,从而达到举升抽油的目的。
Under the action of variation magnetic field, the permanent magnet moving-coil drives the plunger pump to move up and down and lift oil up to ground.
分析了多边形车轮在板式轨道下对直线电机车辆动力学性能的影响。
This thesis develops a coupling dynamics model for LIM vehicle and slab track to investigate the influence of polygonal wheels on dynamic behavior.
分析了多边形车轮在板式轨道下对直线电机车辆动力学性能的影响。
This thesis develops a coupling dynamics model for LIM vehicle and slab track to investigate the influence of polygonal wheels on dynamic behavior.
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