Finite sum formulae for rigidity and damping coefficient of a kink have been obtained.
得出弯结刚性和阻尼系数的有限求和表达式。给出了有关数值计算结果。
It is analyzed that clearance of gland seal has damping action to vibration of the unit, and relationship of amplitude and damping coefficient of them is analyzed.
分析了汽封间隙对机组振动的阻尼作用及其阻尼系数与振幅的关系。
Based on the model experimental results from the Ship Hydrodynamics Laboratory of Shanghai Jiao Tong University, the damping coefficient of the JD flume tank are given.
根据上海交大船舶流体力学研究室槽型减摇水舱模型试验的结果,给出jd槽型水舱的阻尼系数值。
By which linear and nonlinear frequency response function was estimated, and nonlinear stiffness coefficient and damping coefficient of the model were optimized by least square method in this paper.
利用该方法对非线性频响函数进行估计,并利用了最小二乘法对模型的非线性刚度系数和非线性阻尼系数进行了优化。
The study also goes to the influence, upon stress waves, of the piles relaxation time, the equivalent viscous damping coefficient of soil around the pile and the unit rigidity of soil below the pile.
同时,分析了桩身驰豫时间、桩侧土的等效粘滞阻尼系数、桩底土的单位刚度等因素对应力波的影响。
Identification of dynamic natural frequencies and viscosity damping coefficient for a large-scale structure in practical working condition is a very difficult problem.
大型构件在实际工作环境中的系统动态固有频率和粘性阻尼系数辨识一直是一个“棘手”的问题。
Viscosity damping coefficient is an important dynamic parameter of diesel engine.
粘性阻尼系数是柴油机调速器的一个重要的动态参数。
The data indicates that the machining accuracy will be promoted when the span of spindle and the rigidity of bearing or damping coefficient are increased.
研究表明,要降低振动对加工精度的影响,应当适当加大主轴跨距,同时增大轴承支承刚度和系统阻尼系数。
To analyze helicopter rotor dynamic stability with a high degree of accuracy, accurate and reliable damping coefficient determinations of rotor structure are needed.
为了提高旋翼动稳定性理论模型的分析精度,需要精确地确定旋翼系统的结构阻尼系数。
In this paper, we discuss the optimal control problem for an elastic oscillating system of fine-long cube flying object with structure damping coefficient.
本文讨论具结构阻尼系数的细长体飞行器的弹性振动方程支配系统的最优控制问题。
The method of small damping coefficient is discussed finally.
最后就小阻尼系数法作了对比分析。
Each one of the MTMD possesses the same stiffness and damping coefficient but unequal mass.
MTMD具有相同的刚度和阻尼系数但不同的质量。
The equivalent damping ratio and stiffness coefficient of the LED device are studied, and the general equivalent formula of energy dissipation devices is established.
研究了将铅挤压阻尼装置等效成阻尼比和刚度系数的方法,建立了消能装置的通用等效计算公式;
The effect of stiffness constant, viscosity damper coefficient and variable mass on the damped frequency and the relative damping ratio of the system were studied.
研究了系统刚度、粘性阻尼系数尤其是变质量等参数对系统固有频率和阻尼比的影响。
A unified definition for damping torque coefficient of synchronous machines is proposed in this paper according to the principle of synthetic damping coefficients deduced from the Lyapunov Theorem.
根据由李亚普诺夫定理导出的综合阻尼系数的原理,统一定义了同步发电机的动态阻尼力矩系数和动态同步力矩系数。
The article introduced methods of drilling shaker dynamic measurement based on IVC, taking damping coefficient, natural frequency and vibration model as examples.
并以振动筛阻尼系数、固有频率和振型为例,介绍了基于智能控件化虚拟仪器技术的钻井振动筛动态特性检测方法。
By introducing new design parameters such as control move damping coefficient and state feedback weighting fact, the poles of the closed loop predictive control systems can be assigned arbitrarily.
通过引入控制作用衰减系数及状态反馈加权系数,状态反馈预测控制系统的极点可任意配置。
It finds that the damping coefficient is directly proportional to not only wave frequency, but the filling fraction of bigger damping material.
讨论了不同填充比下固有频率对应的衰减系数关系曲线,得出了衰减系数随着大阻尼材料填充比的增大而增大。
The asymptotical stability of the subharmonic resonances and the sensitivity of the amplitude responses to the variation of damping coefficient were examined.
考察了亚谐响应幅值系数对阻尼的敏感性及亚谐振动谐波成分的渐近稳态性。
It is demonstrated that the errors of the unified valve model are dependent on the damping coefficient alone using a non-dimensional approach.
采用非量纲分析法,验证了统一模型的误差仅依赖于阻尼系数。
Based on the shear theory of hydrodynamics, the damping coefficient in plasticizing process is determined in this paper.
依据流体动力学的剪切理论,确定预塑过程聚合物熔体的阻尼系数。
Based on Reynolds equation, the analytical formula of gas-film damping inside two parallel plates has been obtained, which analyses gas-film damping coefficient changes with contact distance.
基于雷诺方程,得到两平行板内部气膜阻尼的解析公式,分析了气膜阻尼系数随接触距离的变化情况。
The method of rolling decay model test for determing damping coefficient was discussed for the case of combined non-linearities both in terms of damping and restoring moment.
对于同时具有非线性阻尼力矩和非线性回复力矩的情形,探讨了利用横摇自由衰减试验来测量横摇阻尼的方法。
This paper introduces the working principles of the damper type down-ward belt conveyor, analyses the belt tension, reports the test result of the damping coefficient.
本文介绍阻尼式下运带式输送机工作原理,对输送带的张力进行了分析,并对阻尼系数进行测试。
Under the assumption of constant torque damping coefficient, the step response of an ultrasonic motor is obtained from the moment equation of the rotor, and also the property is deduced.
从超声马达转子的运动方程入手,在假定转子受定常阻尼的条件下,求解出阶跃响应,并由此推导出超声马达的输出特性。
The impact of turbine governor on the damping characteristic of power system can be determined by the sign and magnitude of the added damping coefficient.
汽轮机调速系统对电力系统阻尼特性的影响可以通过其提供的附加阻尼系数的符号和大小来确定。
Then the damping effect of elastic restraint is verified and the influence of the damping coefficient and the spring stiffness on the damping effect is discussed.
验证了弹性约束对拉索振动的减振效果,讨论了阻尼系数和弹簧刚度对减振效果的影响;
The results showed that the fluctuating amplifying coefficient evidently reduces with the increase of damping ratio.
结果表明,结构阻尼比增大,风振脉动增大系数明显减小。
Analysised the impact of temperature, soil coefficient, damping and geometric parameters of the system, etc. on the main resonance.
分析温度、地基系数、阻尼、几何参数、激励等对系统主共振的影响。
Analysised the impact of temperature, soil coefficient, damping and geometric parameters of the system, etc. on the main resonance.
分析温度、地基系数、阻尼、几何参数、激励等对系统主共振的影响。
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