加速度

The invention is suitable to working platform in XY coordinate plane at high speed, high acceleration and precision.

本发明适合于作为高速、高加速度、高精度定位的XY两坐标平面运动平台。

In order to produce domestic controllers of wind turbine generators, by analyzing corer problems, hardware type-choosing methods and software control processing, a solution to the pitch control algorithm of the MW wind turbine generator controller is proposed, based on the PID control of blade's rotate speed, accelerated speed and pitch angle.

为实现风力发电设备核心控制器国产化，通过分析风力发电机核心控制器所要解决的主要问题、硬件选型方法和软件控制流程，对兆瓦级变桨变速风力发电机组核心控制器提出基于叶轮转速、加速度和角度PID控制的变桨控制算法解决方案。

In this case, the rapping acceleration is independent of ρ×J. From this new point of view, a critical rapping acceleration equation can be given based on the correlation curve of ρ and J presented by Oglesby.

从这一新观点出发，根据Oglesby提供的粉尘层击穿前的电晕电流和粉尘比电阻的相关曲线，得出临界振打加速度计算式。

Actually I don't know the details of how our local galatic group is moving in this frame (perhaps a cosmologist reading this will tell me), but certainly our acceleration is also extremely tiny.

我们的本星系群在这个参考系中如何运动我并不很清楚（也许哪个宇宙学家可以告诉我），但可以肯定那个加速度是极端微小的。

From this experiment, frequency response function could be found, and modal parameter also could be known by curve fitting, then compared with the differences of mode shape and natural frequency by using those modal parameters, also compared with finite element analysis, the results could be applied to detect the structure of beams and prevent it from damage and corrode for the safety in the future.

将实验中三种驱动器搭配加速度计实验分析结果较佳的一组方法，来从事结构之非破坏检测，探讨当固定梁有缺陷产生时，其结构之自然频率与模态振型的变化，并比较其不同缺陷处之固定梁实验模态结果，将来可应用於梁结构物损坏或腐蚀时侦测其安全性之分析。

For analysis of traditional experimental modal, hammer and shaker are often used to force the structure as the clamped-clamped beam to raise the vibration of the structure, meanwhile accelerometer is placed on the structure as a sensor, then the modal parameter could be found.

传统实验模态分析大多使用冲击鎚或激振器施加点力於结构例如固定梁，做为驱动器激发结构的振动，利用加速度计做为感测器置於结构上，以求取结构之模态参数，但传统之模态实验设备都有实验操作不易以及价格昂贵的缺点。

When the crosshead coupling is in the application, the kinematics model can be made by applying the principle of mechanism.

用机构学原理，建立了滑块联轴器及其应用时的运动学模型，分析了其产生的位移、速度、加速度和惯性力等运动学问题，并推导出相应的计算公式。

The simulated results show that when muzzle velocity is zero the cumulative error induced by acceleration of 0.6g can be up to 2.5 nm in 0.4 s, which is not negligible in nanometer measurement.

仿真结果表明，在0.4s时间内0.6g加速度所引起的累积误差可达2.5 nm左右，这对于纳米精度的测量是不应忽视的；初速度不为零时加速运动会引起更大的误差，而减速运动所引起的误差则相对小。

By the proposed method, the true north value can be obtained in 10 s after gyro operates through a counting cursor to calculate the movement velocity and acceleration, and it can also compensate the low precision caused by an electronic compass.

该方法通过计算光标运动的速度与加速度值，能够在陀螺开始寻北数秒后即测量出真北值，并且能够弥补电子罗盘初寻北精度过低的问题，是全自动寻北策略的重要组成部分。

In this paper, a performance index, which is used to evaluate the operating uniformity of multi-cyclinder engine, is presented based on the fact that the fluctuation of gas pressure in the expansion stroke cyclinder leads to the fluctuation of instantaneous angular velocity. The value IP is propotional to the fluctuation of instantaneous angular acceleration. Fuzzy diagnostic index for misfire fault is introduced and investigated also in this paper.

根据多缸发动机曲轴瞬时转速波动不均匀性主要由缸内循环气体压力波动不均匀性引起这一基本事实，以曲轴瞬时转速的实时检测为基础，在一个工作循环内按着火顺序将作功冲程中瞬时角加速度的波动作为评定各缸工作不均匀性的指标，将所得IP模糊化用于多缸机的故障诊断也作了初步的探讨。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失