Question

好心人帮忙翻译点英文资料，急用

The material velocity is
obtained by dividing the increment of the material position counter content AS, in a
specified interval by its duration T,.
A. Algorithms in the cutting zone
In the cutting zone, the blades are in the material and move together with it. A smooth
vertical cross-section is achieved by synchronizing the blade and material
velocities during separation, although in the case of large cross-section surfaces, a
slightly higher blade velocity may be necessary. If the velocities are not
synchronized, the cross-section will not be smooth, and the mechanical components will be
subjected to increased stresses. Synchronization of blade and material velocities will be achieved if the blades move
as shown in。
C. Reduction of kinetic error
The position control algorithms have been deve1oped assuming that the actual blade
velocity follows the reference value without any kinetic error. Since the speed control
loop of the dc motor drive behaves as a lowpass filter, kinetic error is unavoidable.
By using the proportional-integra1 speed controller With parameters selected in
accordance with the "symmetrical optimum", and taking into account aependence of the reference blade velocity, the following expression for the kinetic error during the acceleration and deceleration is obtained [4]
Obviously, the kinetic error depends on the dynamic behavior of the armature current and
speed control loop as well as on the derivation of the blade velocity reference
value. In the cutting zone the kinetic error expression is more complex due to a change in the cosine waveform of the blade velocity reference value. But, the kinetic error also
depends on the derivation of the reference value of the blade velocity. Consequently, by introducing a correction signal vbc = EK and by adding it to the blade velocity reference signal Vbr, the kinetic error can be completely compensated for in the
synchronizing zone and significantly reduced in the cutting zone C5l.This directly improves the accuracy and the quality of cutting.
111. IMPLEMENTATION OF THE FLYINQ SHEAR CONTROL SYSTEM
The block diagram of the flying shear control system is shown in Fig. 2. It may be
seen that the armature current and speed control loops are implemented by analogue
circuitries, the position control algorithms being microcomputer-implemented. The desired
waveforms of the blade velocity and position, as well as those of the material paths are
shown in Fig. 3. In addition, a photosensor signal indicating the presence of the material
together with some characteristic values of the variables are indicated to illustrate the
function of the flying shear control System more clearly.
能不能像点样子啊，在线翻得都不通顺

Answer 1

物质速度是
obtained通过划分物质位置柜台内容的增加，在a<dnt>由它的期间T的</dnt>specified间隔时间。
A.算法在切口区域
In切口区域，刀片在材料并且与它一起移动。 一光滑
vertical横断面通过同步刀片和材料达到 <dnt>在大短剖面表面情况下， </dnt>velocities在分离时，虽然， a
slightly更高的刀片速度也许是必要的。 如果速度不是
synchronized，横断面不会是光滑的，并且机械组成部分将是 <dnt>对增加的重音的</dnt>subjected。 如果刀片移动<dnt>，刀片和材料速度的同步将达到如。所显示的</dnt>
C.运动错误的减少
The职位控制算法有是假设的deve1oped实际刀片
velocity跟随参考价值，不用任何运动错误。 从速度控制
loop