查询词典 undamped

The computational accuracy of the methods is analyzed theoretically; and the amplitude decay and period elongation of the methods are formulated under undamped case.

给出线弹性和弹塑性情况下的单自由度结构振动算例，对算法在弹塑性情况下的表现进行初步研究。

Based on the dynamic characteristic of an original model, the transform analysis of undamped system equation is performed with the frequency characteristic functions at designated modification freedoms, and the general expressions of local mass and stiffness parameters are derived.

该方法根据原结构模型的动态特性，利用与调整点自由度相关的频率特性函数，通过对无阻尼自由振动方程的推导，给出结构局部质量或刚度调整的通解。

In the reference [5], the author has suggested a method of vectorial graphicalcomputation of the undamped forced vibration of the system with one degreeof freedom.

在参考文献[5]中，作者曾提出单自由度系统无阻尼强迫振动的矢量图解计算方法，本文将这方法进一步推广，应用到单自由度系统阻尼强迫振动。

The resultant audible frequency when two sources of unequal undamped electrical oscillations of constant amplitude act simultaneously in the same circuit.

振幅为常量的非平衡无衰减电子振荡的两个振荡源在同一电路中同步振荡时产生的音频。

After the action of an initial disturbance, the vibration of a system around its equilibrium position under the action of only a restoring force is called an undamped free vibration.

物体受到初干扰后，仅在系统的恢复力作用下在其平衡位置附近的振动称为无阻尼自由振动。

Structural modification ; frequency characteristic functions ; dynamic characteristic ; undamped ; addition technique

结构调整；频率特性函数；动态特性；无阻尼；附加技术

The use of the free undamped normal modes is seen to ensure that the linear and angular momenta of the dis to rtional motion vanish.

看来采用自由无阻尼正规模态可保证变形运动的线动量和角动量为零。

A state variable feedback based system control approach, which indirectly controls load voltage by means of controlling the supply current, is proposed, thus the problem that the undamped DC transient component of supply current, which is caused by the linking inductance between power supply and power loads under PI control mode, is solved.

分析了仅由1套逆变器构成的并联型综合电能质量调节器的结构特点和控制目标，提出了一种基于状态变量反馈的系统控制方法，通过控制电源电流来间接控制负载电压，很好地解决了常规比例–积分控制时电源和负载间的连接电感所导致的供电电流直流暂态分量不衰减的问题。

The first-order of the modal flexibility for a real symmetric undamped structure with distinct eigenvalues was derived based on an efficient algebraic method. The formulae are simple and compact, and it is easy to program. Moreover, it only requires one eigenvector to be known to calculate the sensitivity of modal flexibility.

代数方法解析推导出无阻尼线性系统模态柔度一阶灵敏度的解析表达式，该表达式简洁紧凑，便于编程，而且在计算阶模态柔度的灵敏度时，只需一阶模态信息，具有显著的优点。

A length of straight line and a length of undamped sinusoid of 1/4 period replace the envelop as the response. By the new methods, calculation error is greatly reduced and system character analysis is completed with advantage.

新方法使取代曲线由包络线改为与响应曲线非常接近的一段直线和一段1／4周期的不衰减正弦曲线，从而使计算误差大大减小，这将有益于提高系统性能分析的质量。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了