查询词典 rotating speed
- 与 rotating speed 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Because the workpiece is in dynamic balance, the resultant moment acting on it should be zero. Introducing the moment from lapping tool and press head a moving differential equation is built. In this equation only workpiece rotating speed is unknown. It means that workpiece rotating speed can be got by this equation. Since there is a transcendental function in integral function of the equation an analytic result can not be got, only digital result can be got by a computer. Thus a change rule of workpiece rotating speed with lapping parameters is known, e.g. the radius of press disc ball socket, radius of press head ball, the distance between the workpiece rotating axis and lapping tool rotating axis, workpiece radius, modulus of elasticity of the press head and press disc, friction coefficients between the lapping tool and workpiece, and between the head and disc, pressure between the lapping tool and workpiece and pressure between the press head and press disc.
因工件处于动态平衡状态,其上所受到的来自于磨具和压头的力矩应相等,将二力矩表达式联立,建立工件运动微分方程,该方程中只有工件的旋转角速度是未知量,因此可以求出工件旋转角速度,但该方程积分式中含有超越函数,得不出解析解,只能通过计算机求出数值解,得出工件旋转角速度随各研磨参数的变化规律,如压盖球座半径、压头的球头半径、工件回转中心相对磨具回转中心的偏心距、工件半径、压头和压盖材料的弹性模量、磨具与工件间的摩擦系数、压头压盖间的摩擦系数、磨具与工件间的压强、压头压盖间的压力等。
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The analysis results indicate that the vibration fractional factor with rotating frequency has a close relationship with both rotating speed of rotor and damping of bearing under constant acceleration. When rotating acceleration is small and damping is large, the transient response is not sensitive to the variation of rotating speed; otherwise the imbalance response with constant acceleration and the response in stable state will build up obvious differences near critical rotating speed.
研究结果表明:在恒加速条件下,转子同频振动分量与转子的转速、支承阻尼等因素密切相关,当角加速度较小且阻尼较大时,其瞬态响应对转速的波动不敏感;而当角加速度较大或阻尼较小时,恒加速过程不平衡响应与稳态响应在临界转速附近将产生明显的差异。
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The calculation results shows that ,(1) when the rotor rotates at the working speed, a local regurgitant whirlpool that is rightabout to the rotor"s rotating direction appears in the classifying region, which makes the separated granules come back to the outside of the classification district and influences the classification efficiency of the turbine classifier;(2) in the condition of a low rotating speed of turbo rotor, ultrafine particles can follow the gas phase by and large, but when the rotating speed increases, a phenomenon of velocity slippage between two phases appears evidently;(3) A operating parameter, air flow rate is so important that can directly influence the stability of flow field in classifying chamber, the bigger the air flowrate is , the steadier the flow field is;(4) Compared with straight blades, the new shape of blades with backward crooked elbow are helpful to improve the stability of flow field and form whole stream easily, also beneficial to advance the classification accuracy and classification efficiency;(5) The motion trace of particles are very complicated when the turbo rotor rotates at a high speed, the constant bounce of the particles appear between the blades and the coarse particles are even bounce back from the inlet, only the finer can pass through the classification area from the oulet;(6) Along with the increase of the rotor"s rotating speed, radiah axial and tangential velocity all begain to fluctuate repetitively like sine-wave, the smaller the particles are, the more violently they fluctuates.
数值模拟结果表明,(1)在涡轮达到工作转速时,在分级区域形成了一个与涡轮旋转方向相反的局部回流涡,它使得分离出来的细粒重又被带回分级轮外边缘,从而严重影响分级机的分级效率;(2)粉尘粒子在涡轮低速运动情况下,基本上能跟随气体运动,但随着转速加大,两相之间出现了明显的速度滑移现象;(3)分级机工作时的风量也是一个比较重要的操作参数,它可以直接影响到分级机内腔流场的稳定性,风量越大,流场越稳定;(4)同直叶片形状相比较,带后弯导板的叶片,有利于改善流场的稳定性,流场容易形成整体流,对提高分级效率和分级精度都非常有利;(5)粒子轨迹线在涡轮转速较高时十分复杂,有的出现了反复的弹跳现象,大颗粒不能通过分级区域而从进口返流了,只有细小的颗粒才从出口处流出;(6)涡轮转速加大时,粒子的径向、轴向和切向速率出现了明显的类似于正弦波的脉动现象,颗粒越小,脉动程度越为剧烈。
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The complete wind turbine speed control firstly proposed here also improves the tracking effect of wind turbine rotating speed to variable wind speed. Wind turbine rotating speed synchronized power observer compensates the power ripple of wind turbine resulted in inverter dead time. A low pass filter used at the output of MPPT controller smoothes the speed reference, which makes the rotating speed of wind turbine more stable.
本文首次提出的变转速扰动的MPPT控制提高了风车最大功率点追踪的快速性和稳定性,风车完全转速控制提高了风车转速对变动风速的跟踪效果,转速同步风车功率观测法消除了逆变器死区所造成的风车功率波动的影响,带有低通滤波器的MPPT控制器使得风车的转速更加趋于平稳。
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An elliptic rotating field is produced when an induction motor operates in asymmetry, this paper proposes a model of jointed motion to describe the motion of an elliptic rotating vector and states that the elliptic rotating vector is jointed with two components, the main one rotates forward at a uniform speed while the adjunctive one jointed at the topend of the main one rotates backward around the joint point at a double speed, both make the elliptic rotating vector rotate at swinging amplitude, speed and direction.
感应电机不对称运转时产生椭圆旋转磁场,本文建立了描述椭圆旋转矢量的接合运动模式,说明椭圆旋转矢量是由一个主矢量带动一个付矢量一起旋转构成的接合矢量,主矢量以匀速旋转,付矢量链接在主矢量顶端同时绕着链接点相对主矢量以二倍速反向旋转,两者共同构成的一个单向椭圆旋转矢量。
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When the large rotating arm rotates, the transmission gear is driven to rotate around the fixed gear to rotate the planetary gear, which drives in turn the small rotating arm to rotate in the direction opposite to the large rotating arm, so that the shaft of the small rotating arm reciprocates across the rotation center of the large rotating arm.
当大旋臂旋转时,传动齿轮受到驱动沿固定齿轮周转并带动卫星齿轮转动,卫星齿轮带动小旋臂作与大旋臂反向的旋转,从而使小旋臂上的固定轴随着大、小旋臂的旋转不断往复越过大旋臂的旋心作直线运动。
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It design an overloading protection equipments base on the characteristic of the Super High-speed rotating equipment ,which are fit for a certain super high-speed rotating equipment,,and analysing the mechanical characteristic of the super high-speed rotating part by the finite element method.
针对超高速旋转设备的工作特点,设计了适合超高速旋转设备使用的过载保护装置,并利用有限元方法分析了超高速旋转条件下的转子力学特性;对包括模态、冲击响应、谐响应等在内的过载保护器动态特性以及工作过程中产生的不平衡量和摩擦热等影响过载保护装置正常工作的因素进行了分析计算。
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When the other parameters are fixed, the SSD can be decreased with the decrease of wheel infeed, the increase of wheel rotating speed and the increase of chuck rotating speed, and the increase of chuck rotating speed within a suitable range.
在一定的范围内,当其它磨削参数不变时,硅片的损伤深度随着砂轮进给率的增大而增大,随着砂轮转速的增大而减小,随着工作台转速的增大而减小。
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The rub-impact between rotor and stator often occurs because the rotor shaft stiffness decreases following the occurrence of the crack in the rotor shaft, and thus the coupling fault with rub-impact and crack is hackneyed fault type. Based on the nonlinear dynamical model of the cracked rotor-bearing system with rub-impact, the stability of the periodic motion and instability way were studied in unbalance-rotating speed plane and rotor/stator clearance- rotating speed plane and crack depth- rotating speed plane, and the main results were validated by the experiment.
转子轴承系统裂纹故障的出现会引起转子系统转静件之间碰摩故障的发生,因此裂纹碰摩耦合故障也是转子系统常见的故障类型,本文在裂纹碰摩耦合故障转子轴承系统的非线性动力学模型基础上,分析了系统在不平衡量-转速、碰摩间隙-转速、裂纹深度-转速等参数域内,周期运动的稳定性及其失稳规律,并用实验验证了主要理论结果。
- 相关中文对照歌词
- Rotation
- Rotating
- Accelerate That
- Up Your Speed
- Speed
- Living At The Speed Of Light
- Bad For Good
- Coyote
- Faster Than The Speed Of Night
- Speed Of Sound
- 推荐网络例句
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The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.
生产提出过百老汇的新的纽约市,在那里她赢得了约瑟夫calloway奖,她的表现,并于异型在美国的战区杂志之一, 10战区的青年艺术家观赏。
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It's a risk tradeoff, and I believe that adding test support code usually wins.
这是一个风险的权衡,我相信添加测试代码通常会占上风。
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Besides, Fantine was only a moderately good workwoman
芳汀究竟还只是一个手艺平凡的工人。