1) chord vibrating system
弦振动系统
1.
The characteristics of conduction band and forbidden band of photonic crystals are investigated with a macroscopical chord vibrating system indirectly.
得到了类比于光子晶体的亥姆霍兹方程的弦振动系统的本征值方程,并利用该方程研究了光子晶体的导带和禁带特征。
2) non-sinusoidal oscillation system
非正弦振动系统
1.
A digital multi-function mold with non-sinusoidal oscillation system was used to replace the classic mechanical oscillation device.
采用数字控制电动式多功能结晶器振动装置取代原来的机械式振动,使结晶器作相应的运动,非正弦振动系统可克服由于结晶器偏振共振对拉速的限制,提高铸机拉速,大大降低由振动装置引起的漏钢事故,同时还可提高铸坯的表面质量。
2.
Due to the non-sinusoidal oscillation system of continuous casting mould is a eletrohydraulic servo system, its parameters are variable and model is uncertain, it is very difficult to achieve better tracking control performance and robustness by traditional PID and classical control theories.
针对结晶器非正弦振动液压伺服系统参数易变、模型不确定这一特点 ,对模型未知的系统用神经网络模型逼近 ,并采用改进的递阶遗传算法对神经网络的权值和结构同时进行训练 ,实现系统模型的精确辨识 ;将模糊控制与神经网络相结合 ,提出一种模糊神经网络控制方法 ,实现连铸结晶器非正弦振动系统的跟踪控制。
3) vibration system
振动系统
1.
Simulation analysis on two-degree-of-freedom segmented linear vibration system;
一类两自由度分段线性振动系统的仿真分析
2.
Selection and Calculation of Vibration System of Tandem Vibratory Roller;
串联式振动压路机振动系统参数的选择计算
3.
Dynamic analysis on vibration system of self-walking combine harvester;
自走式联合收割机振动系统的动力学分析
4) vibration systems
振动系统
1.
Design of eigen-structure disposition of vibration systems is investigated in this paper.
考虑了振动系统特征结构配置设计问题,其目的是设计比例加微分反馈控制律使得闭环振动系统具有期望的特征值和特征向量。
2.
In accordance to identifying the single mode and closely modes frequency of the vibration systems by impulse response and the quick sinusoidal sweep response with serious noise,wavelet transform was combined with SVD filtering.
针对从受噪声污染的脉冲响应信号和快速正弦扫频响应信号中识别振动系统的单模态和多模态的频率问题,将小波变换与奇异值分解(SVD)相结合,利用基于小波变换的能量分布函数,进行奇异值分解后,根据最大奇异值,求出主分量,然后通过主分量对应的尺度图或频率计算公式,识别出模态的频率。
5) system vibration
系统振动
1.
Effect of variable damping of ER fluid on system vibration;
电流变流体可变阻尼对系统振动的影响
2.
The paper presents a system vibration equation based on the “Bowl-Axle-Bearing" system, an axle s bending vibration differential and simple equation, and a fundamental mode and frequency equation.
全面推导了“转鼓—转轴—支承”系统的系统振动方程、转轴弯曲振动微分方程及其简化方程、主振型方程和频率方程 ,给出了某型号分离机前三阶临界转速与主振型的计算结果 ,讨论了临界转速的影响因素。
6) vibrating system
振动系统
1.
In this paper the method of reflective function is used to study the multidegree of freedom vibrating system x ′=p(t)x .
采用反射函数法研究了多自由度振动系统 x′=p( t) x,当 p( t) =diag( A( t) ,B( t) )时 ,给出其等价系统 y′=A( t) y,z′=B( t) z同相振动的充分必要条件 ,其中 A( t) =( aij( t) ) 2× 2 ,B( t) =( bij( t) ) 2× 2 ,y=( y1,y2 ) T,z=( z1,z2 ) T,p( t+2 ω) =p( t) ,ω>0 ,t∈R,x∈ R4 ,p( t)为连续可微的矩阵函数 。
2.
A new stability criterion for vibrating systems with time-invariant uncertain delays is developed,where an improved upper bound for the inner product of two vectors is introduced.
根据这种新的判别方法,受控振动系统的最大时滞量可以通过Matlab控制工具箱LMI(线性矩阵不等式)得到。
3.
This paper provides a new stability criterion for vibrating systems with time-invariant uncertain de- lays.
根据这种新的判别方法,受控振动系统的最大时滞量可以通过 Matlab 控制工具箱 LMI(线性矩阵不等式)得到。
补充资料：弦的横振动
见物体的振动。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条