本文详细考察了滑动轴承支承的转子不平衡质量的大小及分布对系统稳定性的影响。
This paper studies in detail the effect of magnitude and distribution of rotor unbalance on the stability of rotor-journal bearing system.
利用压电式力传感器作为动平衡测量系统中的敏感元件来测量不平衡质量引起的振动。
The piezoelectric pressure transducer is applied to dynamic balancing measurement system for measuring the vibration caused by imbalanced mass.
对电脑弹簧机旋转体的不平衡质量可以用补焊、铆接、胶结等方法来加配电脑弹簧机质量;
The quality of computer spring machine rotor imbalance can repair welding, riveting, cementing way to add with computer spring machine quality;
在旋转机械中,存在着大量的转子不平衡故障,这是由转子不平衡质量的惯性力或惯性力矩所造成的。
In a rotating system, unbalance default often happens which is resulted in the inertial force or inertia moment of unbalance weight.
这些随机的不平衡质量在洗衣机运行过程中产生了随转速变化的离心力激起洗衣机的随机振动,并引发随机的噪声。
Under different operation speeds the random unbalance mass produces the unbalance force, by which the vibration and noise of the machine is excited.
因此其质量相当不平衡。
根据建立的机组轴系动力学模型,计算得到了测试位置处振动量所对应转轮的质量不平衡量值的大小。
Based on calculation of the shafting dynamics model of unit, the value of unbalance mass of runner correspond to the value of vibration quantity in the testing site was obtained.
论述了期刊影响因子与期刊的有用性、显示度、论文质量的关系以及学科间影响因子不平衡分布的问题;
The relationship between journal impact factor and paper quality, and the imbalance distribution of impact factors among different subjects are discussed.
本文是从分析挠性转子的不平衡单质量的动态响应出发,找出用影响系数法平衡挠性转子的理论依据。
The dynamic response of unbalanced single disc rotor is analysed and theoretical aspects of flexible rotor balancing by the influence coefficient method are studied.
转子质量不平衡是造成转动设备振动的主要原因之一。
Unbalance mass of rotor is one of the causes resulting in vibration of rotating devices.
研究了锰的质量分数、固溶处理温度和淬火冷却速度对锰不平衡偏聚的影响和不形成锰偏聚的条件。
It includes the effect of manganese content, solution treatment temperature and cooling rate on the non equilibrium segregation of manganese and condition of segregation formation.
当无功功率不平衡时,将会导致系统电压降低、电能质量下降、功率因数降低、线损增加等问题。
When reactive power is unbalance, it will cause some problems, such as lower voltage, worsen voltage quality, lower power factor and increase line loss.
目前我国电能质量国家标准主要规定了五个指标:频率、谐波、电压偏差、三相不平衡及电压波动与闪变。
At present, our country power quality national standard was chiefly stipulated five quotas: frequency, harmonic and voltage deviation, three-phase unbalance and the voltage fluctuation and flicker.
为了有效地降低回转机械由于质量不平衡引起的振动故障,基于转子动力学理论和有限元数值分析方法,进行了柔性转子系统虚拟动平衡研究。
A virtual balancing method of a flexible rotor based on rotor dynamic and finite element method is proposed in this paper to decrease the vibrations caused by mass unbalancing.
质量包括电源电压的质量的能力的概念与有关,例如,电压下跌,不平衡,谐波失真,电压波动并且摇曳,等等。
The concept of power quality includes the quality of the supplying voltage with respect to, for instance, voltage sag, imbalance, harmonic distortion, voltage fluctuation and flicker, etc.
本文主要通过对动平衡测试系统的动力学分析,推导车轮综合不平衡与平衡校正质量的大小和位置。
From which the correcting mass quantity and location related to the adjustment of the synthetic unbalance of motorcar wheels were derived.
结论黑龙江省卫生人力的特点是拥有量大、质量低、分布不平衡。
Conclusion Large possession, low quality and unbalance distribution of health technical staffs is typical nature of health manpower in Heilongjiang province.
在磨削加工中,砂轮不平衡量是引起砂轮主轴系统振动、降低磨削质量的主要原因。
In the course of the grinding process, the unbalance of the grinding wheel is the main reason for the vibration of the axis and the low grinding quality.
产品质量自动检测是一种类不平衡的模式识别分类。
Automated defect inspection is a kind of classification for imbalanced classes.
本文给出了转子和平衡环质量不平衡的双平衡环挠性陀螺的动力学方程,推广了理想情况下的陀螺动力学方程。
The dynamical equations for a two-gimbal dynamically tuned gyroscope with mass unbalance in both the rotor and the gimbals are put forward as a development based on ideal suspension.
实际运行证明,立式双校正面平衡方法不仅改善了高速离心机及呈悬臂支承结构的转子的平衡质量,而且使转子的不平衡残余值明显降低,平衡状态稳定可靠。
It(?) proven that this method improves the balancing grade of high speed centrifuge, and decreases the residue unbalance of rotor. Therefore the working condition of rotor is steadily and dependable.
在冶金工业中使用的电弧炉可引起电网三相负荷不平衡,产生谐波引起电流闪变,严重影响电网电能质量。
Electric Arc Furnace (EAF) used in metallurgy industry often causes unbalanced three-phase load power, and therefore generates severs flicker to the grid, which seriously impact the power quality.
摘要:针对动叶可调双级轴流风机长期运行中叶片磨损造成转子质量不平衡,引起风机振动增大的问题。
Abstract: the vibration increasing of adjustable vane double-stage axial flow fan caused by the rotors mass unbalance for the vane abrasion in long period running is a main malfunction.
在此基础上研究了电能质量监测理论,详细介绍了电压电流有效值、功率、三相不平衡度、谐波和闪变的数字测量方法。
Based on this requirement, this paper introduced the theory of power quality monitoring, include RMS of voltage and current, power, three-phase unbalance, harmonic and flicker.
由于转子质量不平衡引起的振动将导致出现各种机械故障。
The vibration due to the imbalanced quality of the rotor will cause a variety of mechanic malfunctions.
同时本文对电能质量的有关指标:电压偏差、频率偏差、各种功率、谐波含量、电压波动和三相不平衡的计算和检测方法,进行了详尽地阐述。
And some indexes of power quality: voltage deviation, real power, reactive power, harmonic content, voltage fluctuation and unbalanced three-phase voltage and current, are discussed at length.
同时本文对电能质量的有关指标:电压偏差、频率偏差、各种功率、谐波含量、电压波动和三相不平衡的计算和检测方法,进行了详尽地阐述。
And some indexes of power quality: voltage deviation, real power, reactive power, harmonic content, voltage fluctuation and unbalanced three-phase voltage and current, are discussed at length.
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