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weak damping
相关语句
  弱阻尼
     Melnikov method is employed to study the bifurcations and chaos of homoclinic and subharmonic orbits for two pendulum systems. One is with weak damping and parametric excitation and the other is inverted with external driving. The parameter conditions for occurence of bifurcations and chaos are obtained.
     用Melnikov方法研究具有弱阻尼与参数激励的单摆以及倒摆运动的同宿轨道分岔、次谐分岔和混沌现象 ,得到了发生同宿轨道分岔、次谐分岔和混沌的临界参数 ,并将所得理论结果与倒摆运动的实验结果进行了比较与讨论 .
短句来源
     THE LONG TIME BEHAVIOUR OF SPECTRAL APPROXIMATE SOLUTION FOR NONLINEAR SCHRO ¨DINGER EQUATION WITH WEAK DAMPING
     带弱阻尼的非线性Schrdinger方程谱逼近的大时间性态
短句来源
     The initial boundary value problem of the nonlinear wave equation with the weak damping term and a source term was studied.
     研究了含弱阻尼和源项的非线性波方程初边值问题.
短句来源
     By using the Fourier spectral method a periodic initial value problem of nonlinear Schrdinger equations with weak damping is studied. For the approximate solution, the large time error estimate is obtained. The author proves the existence of approximate attractor A N and the weak upper semicontinuity d w (A N,A)→0.
     本文讨论带弱阻尼的非线性Schrodinger方程周期初值问题当采用谱方法求解时近似解的大时间误差估计、近似吸引子AN的存在和它们的弱上半连续性dw(AN,A)→0.
短句来源
     The result shows that different propeller blads number does not obviously effect the critical speed and transverse vibration’s spectrum of the weak damping shafting.
     结果表明:螺旋桨叶数的不同对弱阻尼轴系横振的共振转速及横振响应的频谱特性影响不大;
短句来源
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  “weak damping”译为未确定词的双语例句
     Weak damping perturbation with a repeated eigenvalue of equal first derivatives
     等导重特征值的阻尼摄动
短句来源
     Experimental Research on Effects of Different Propeller Blade Number on Transverse Vibration of Weak Damping Shafting
     不同桨叶数螺旋桨对弱阻尼轴系横向振动影响的实验研究
短句来源
     Weak Damping Perturbation Technique for Eigenvalue Cluster
     特征值组的弱阻尼摄动
短句来源
     The initial boundary value problem of nonlinear Schrodinger-Boussinesq equation with weak damping is discretized by finite difference method. The error - estimate of numerical solution is established, and the existence of the approximate attractor and its upper-semicontinuity are proved.
     用差分法对非线性Schrdinger-Boussinesq方程的初边值问题构造了近似计算格式,并得到了近似解的误差估计,还进一步论证了近似吸引子的存在性和关于原问题吸引子的上半连续性。
短句来源
     This paper takes the participation factors of rotor angle velocity for weak damping mode as the index to identify the optimum location for PSS.
     采用发电机的转子角速度对弱振荡模式的参与因子作为指标 ,选择最佳的PSS安装地点。
短句来源
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  相似匹配句对
     weak R& D ;
     研发能力弱;
短句来源
     Weak Damping Perturbation Technique for Eigenvalue Cluster
     特征值组的弱阻尼摄动
短句来源
     Weak at technology;
     技术力量薄弱,对于香兰素的外观问题始终没有解决;
短句来源
     DAMPING ALLOYS
     减振合金
短句来源
     Damping Rubber
     阻尼橡胶
短句来源
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  weak damping
Moreover the damping is assumed to be nonlinear with no growth assumption at the origin, which allows very weak damping.
      
For nor linear inertial torsion vibrations of the structure of a nematic liquid crystal in a destabilizing magnetic field, there exist low-frequency modes with anomalously weak damping.
      
When the piston velocity is always smaller than the thermal velocity we observe weak damping.
      
We investigate the microscopic mechanisms associated with strong and weak damping in the adiabatic motion of the simple piston with finite mass and finite amount of gas.
      
Strong and Weak Damping in the Adiabatic Motion of the Simple Piston
      
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The problem of building up a high-speed servomechanical system in engineering practice have been discussed. The main points are: 1. A Small inertial electronic circuit has been developed instead of the large inertial filter circuit and power element. 2. Tachometer has been used to improve performance of servomotor. The key of this work lies on designing a satisfactory power element and avoiding the spring connection of machines. 3. The method of combining the machine and electronic circuits has been proposed...

The problem of building up a high-speed servomechanical system in engineering practice have been discussed. The main points are: 1. A Small inertial electronic circuit has been developed instead of the large inertial filter circuit and power element. 2. Tachometer has been used to improve performance of servomotor. The key of this work lies on designing a satisfactory power element and avoiding the spring connection of machines. 3. The method of combining the machine and electronic circuits has been proposed to the damping of transmission effectively. 4. By using the analytic method introduced in this paper, the specification of optimal high-speed system can be nearly realized by dynamic design. This method is simplier and easier than other general synthetic methods for handling by technicians. 5. The effect of weak damping second-order element should be considered as the influence of small parameters on feedback control system is taken into account. The high-speed performance of system will be effected under the influence of correction of low-pass filter.

本文着重讨论建造快速伺服系统工程实践中的问题。其主要之点有: 1.必须研制小惯性电子线路以取代惯性较大的平滑滤波电路及功率部件等。 2.采用测速反馈改善伺服电机性能的关键在于设计理想的功率部件和避免机组的弹性联接。 3.采用机械与电子线路相结合的方法,可以有效地的增加动力传递机构的阻尼。 4.利用本文介绍的分析方法进行动态设计,可使系统接近最优快速系统的指标。方法简便,比之一般的综合方法易为工程技术人员掌握。 5.讨论小参数对反馈系统的影响时,需要注意弱阻尼二阶环节的作用,用低通滤波进行校正将会影响系统的快速性。

In this paper the equations of energy response and its Fokker-Planck equation for an oscillatory system were derived from Ito stochastic differential theory. Under the assumption of weak damping the two-dimensional Markov process was simplified to a one-dimensional Markov process.As an example, the linear system was used to illustrate the approximation of the method.

本文应用Ito微分理论导出振动体系受随机荷载作用下的能量反应方程和Fokker-Planck方程。把弱阻尼的单自由度体系的二维马尔柯夫过程简化为一维马尔柯夫过程。最后以线性体系为例讨论了本文提出方法的近似程度。

The damping of channeling radiation and the periodicity of crystal lattice field were considered. The motion equation of particles is simplified to the pendulum equation with weak damping and weak excitation. The chaotic behaviour of the system is discussed, Melnikov function in various cases is calculated, the threshold and possible approach to chaotic condition are derived.

考虑了带电粒子沟道辐射的衰减和晶格场的周期性,把粒子运动方程化为具有弱阻尼和弱激励的摆方程。讨论了带电粒子面沟道辐射的混沌(Chaos)行为,计算了系统的Melnikov函数,导出了系统的阈值和通向混沌的可能途径。

 
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