用脉动法由某15层百货大楼的随机响应信号中识别其动力学参数。
This paper describes the pulsating analysis technique for identifying the dynamic parameters of a 15-story building from its random response signals.
利用脉动法对-试验工程进行了动力特性测试,得到了该结构的固有频率和振型。
The dynamic characteristics of an experimental structure were tested by means of pulsating method and frequencies and modes of structure are gained.
在脉动风的作用下,对穹顶结构进行脉动法实测,将实测值与有限元分析结果进行比较。
The pulsating method is used to test the dome structure of the building under pulsation wind. Measured experimental data are compared with those obtained from the finite element analysis.
该文介绍了结合光脉动法和相关测速法同时在线测量煤粉粒径、浓度和速度的技术和装置。
This paper presents the on line measurement of size, concentration and velocity of pulverized coal with light fluctuation and correlation method.
应用脉动法测到的信号分析结构的固有频率和振型,利用作者提出的改进的单纯形法来识别结构刚度。
The frequencies and vibration modes of structures are analyzed with pulsating method and structural stiffness is identified with modified simplex method, which is presented by authors.
该方法简化了消光系数的计算过程,能够满足工程测量的精度要求,有助于光脉动法在线测量的实现。
It simplifies the calculation of the extinction coefficient, meets the engineering measurement requirement, as well as helps to implementing real-time measurement.
结果表明理论与实测的前几阶结构动力特性基本吻合,用脉动法对桥梁结构的动力特性进行测试是有效的。
It shows that the dynamic properties of the first steps by theory essentially agree with that by practical test, and that the impulse response method is efficient in dynamic test of bridge.
消光系统在光脉动法颗粒粒径测量技术中是一个十分重要的物理量,但现有的消光系数处理方法有许多不完善的地方。
Extinction coefficient is a very important parameter in the field of particle sizing technology using optical fluctuation method. But the existing method dealing with it is not perfect.
介绍了光脉动法的基本原理,及基于该原理开发的可用于直吹式和中间仓储式煤粉制粉系统的煤粉粒度和浓度实时在线监测系统。
The principle of light fluctuation is presented, on which a novel system for on-line monitoring pulverized coal stream was developed by authors.
根据摆线泵的啮合线方程,建立了用几何法求解摆线泵的瞬时流量、排量、流量脉动率的数学模型。
Based on the equation of action line for cycloidal pump, a geometrical mathematical model is built to solve instantaneous flow, displacement, average flow and the pulsation of the pump.
与采用超声波、电容作为传感器的相关测量法相比,利用压力传感器测量压力脉动随机信号的相关测量法成本较低。
Compared with correlation measure by adopting ultrasonic and capacity as sensor, it has lower cost that adopting random signal of fluctuating pressure by pressductor measured.
建立了间歇精馏无回流操作过程的数学模型,采用四阶龙格库塔法求解初值问题,计算无回流开工过程及间歇精馏脉动操作过程中无回流周期内各塔板浓度变化的动态特性。
The dynamic characteristic of concentration change on plates of batch rectification column in no reflux start up process and in no reflux period of pulse operation process have been calculated.
目的研究血管粘弹性对脉动血流在扌衮法推拿作用下切应力的影响。
Objective To investigate the effect of vasal viscoelasticity on wall shear stress of pulsatile flow under the influence of Rolling Massage.
对管内流体流量的温度相关测量法进行了理论分析,并对柴油机排气温度脉动信号进行相关处理,得出相关流量。
The theoretical analysis is performed for in tube flow measurement by correlation methods, and the correlation flow is obtained from analyzing stochastic temperature signals of diesel gas.
最后得出对转矩脉动最优的斩波方式为PWM—ON—PWM,并在三个位置传感器的条件下运用位置预测法实现。
Finally it is concluded that PWM-ON-PWM is the existing optimal PWM mode for reducing commutation torque ripples, and achieves this mode on condition of three position sensors.
本文介绍了一种基于脉动高频电压信号注入法实现面装式永磁同步电机无传感器控制的方法。
A method to implement sensorless control of Surface Mounted PMSM based on fluctuating high frequency voltage signal injection was introduced.
与采用超声波、电容作为传感器的相关测量法相比,利用压力传感器测量压力脉动随机信号的相关测量法成本较低。
Compared with correlation measure by adopting ultrasonic and capacity as sensor, it has lower cost that adopting random signal of fluctuating pressure by pressductor...
当秘法强化,燃火或冰寒脉动消失时,将失去所有的时间偷取叠加层数。
When Arcane Power, Combustion, or Icy Veins expires, all stacks of Stolen Time are lost.
针对这种反电动势波形偏离理想波形的情况,本文提出了一种最优电流跟踪法来抑制转矩脉动。
Aiming to minimize the torque ripple in condition of non-perfect BEMF waveform, the dissertation present a optimum current tracking control technique.
应用POD法识别作用在结构表面的脉动风荷载的时频域特性。
The proper orthogonal decomposition(POD) technique was applied to identification random wind pressure time or frequency domain specific property.
最后,探讨了旋转、脉动高频电压信号注入法下定子电阻对转子位置估算影响的问题。
Finally, the stator resistance effect of rotor position estimation in high frequency voltage signal injection is investigated.
利用有限元法求解声学波动方程,建立了管内气流的有限元运动方程,计算出管内气柱的固有频率和气流压力脉动。
The FEM equation of acoustic wave is used to calculate the air-current natural frequency and pressure pulsation in the pipeline.
利用有限元法求解声学波动方程,建立了管内气流的有限元运动方程,计算出管内气柱的固有频率和气流压力脉动。
The FEM equation of acoustic wave is used to calculate the air-current natural frequency and pressure pulsation in the pipeline.
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