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free vibration response
相关语句
  自由振动响应
     Processing the response signals by using the random decrement technique, a unique corresponding to each mode is obtained, which represents a free vibration response of the structure.
     应用随机减量技术对响应信息进行处理,相应于结构的每一振型可得到一条独特的随机衰减曲线,该曲线代表结构自由振动响应
短句来源
     In this paper the free vibration response of rotor bearing system is collected via varing the support stiffness by means of characteristics of balancing machine changing support stiffness in rotor balance.
     利用转子动平衡中 ,动平衡机可改变支承刚度的特点 ,提取改变支承刚度后转子滑动轴承系统的自由振动响应 ;
短句来源
  “free vibration response”译为未确定词的双语例句
     Discrete spectrum analysis for amplitude correction of damped free vibration response
     基于离散频谱分析的自由衰减振动信号的幅值恢复
短句来源
     (2). The exact solutions of natural frequencies, modal functions and the free vibration response.
     (2).推导了弹性轴向行进索的特征值、模态和线性自由振动解。
短句来源
     The free vibration response of the light steel structural building is analysed by Morlet wavelet.
     对粘滞阻尼线性系统的自由振动相应进行Morlet复小波变换,从脊线上的小波系数提取瞬态参数 从而识别固有频率、模态阻尼。
短句来源
     Introducing six degrees of freedom the stiffness matrix of the complex system with arbitrary arrangement of piling is derived. Dynamic analysis is made using the free vibration response for multi-degree of freedom under initial conditions.
     导出了桩基任意布置的复合体系的刚度矩阵,并按初始条件下的多自由度体系的自振问题进行动力分析。
短句来源
     The estimation methods of damping factor of bellows under noise environment by free vibration response were presented. The wavelet transform was used to reduce the effect of environ- mental noise.
     利用小波去噪抑制测量噪声的影响,采用Hilbert变换法和峰值法估计波纹管的阻尼系数。
短句来源
  相似匹配句对
     SYMMETRICAL FREE VIBRATION OF BELLOWS
     单层波纹管的轴对称振动
短句来源
     Free-vibration of waist structures
     带腰架结构的自由振动研究
短句来源
     The frequency of the acceleration response signal of free vibration is obtained.
     4.用ANSYS建立了构架-悬挂系统的模型,对其进行了刚体构架模态计算,得到构架的三阶刚体振动频率。
短句来源
     A response iteration method for nonlinear free vibration
     非线性自由振动的迭代响应法
短句来源
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  free vibration response
Closed form solutions are presented for the nonlinear free vibration response and for the responses under uniformly distributed static and step function loads.
      
Nonlinear free vibration response and the response under uniformly distributed static and step function loads are obtained.
      
The slowly-variant-system is defined and analyzed in this paper and the nonlinear relationship between its instantaneous parameters and the instantaneous amplitude and frequency of its free vibration response is established.
      
The finite element method in conjunction with first order perturbation technique have been employed to obtain the second order statistics of free vibration response of composite laminated plates with random material properties.
      
The free vibration response of the log was observed in the oscilloscope.
      


A new technique called Random decrement Technique (Randomdec) is used to accurately measure the natural frequency and damping ratio of a structure subjected to unknown random excitation such as ocean waves.The major advantage of the Randomdec is that it requires only measurements of the dynamic response and not the random excitation causing the response.A brief, rather intuitive explanation of the principles of the Random Decrement Technique is presented and the test procedure and results are described.Investigation...

A new technique called Random decrement Technique (Randomdec) is used to accurately measure the natural frequency and damping ratio of a structure subjected to unknown random excitation such as ocean waves.The major advantage of the Randomdec is that it requires only measurements of the dynamic response and not the random excitation causing the response.A brief, rather intuitive explanation of the principles of the Random Decrement Technique is presented and the test procedure and results are described.Investigation is completed on a 1/14 scale offshore platform model which is mounted on four pipe piles driven into the ground.The random excitation is simulated by hammer hit in experiment with the model.The response signals are measured by accelerometer and recorded on tape.Processing the response signals by using the random decrement technique, a unique corresponding to each mode is obtained, which represents a free vibration response of the structure.Finally, the natural frequencies and damping ratios of the structure can be found from these signatures by logarithmic decrement method.

本实验研究是利用一种称为随机减量技术的新方法,精确地测量受到如海浪那样的未知随机激振的结构物的固有频率和阻尼比。随机减量技术的主要优点是,它只要求测量动力响应而不要求测量引起该响应的随机激振。 本文简明、直观地解释了随机减量技术的基本原理,介绍了实验过程及结果。实验研究是在一座比例为1/14的海洋平台模型上完成的,平台模型安装在打入地下的四根管桩上。实验中,用锤击法模拟随机激振,用加速度计测量响应信号并记录到磁带上。 应用随机减量技术对响应信息进行处理,相应于结构的每一振型可得到一条独特的随机衰减曲线,该曲线代表结构自由振动响应。最后,用对数减缩法,由这些曲线求出结构物的固有频率和阻尼比。

This paper presents the analysis method of complex vibration of open piling pier with rubber fender due to ship impact during the berthing maneuvers. The traverse round of ship and damping effect are considered. Introducing six degrees of freedom the stiffness matrix of the complex system with arbitrary arrangement of piling is derived. Dynamic analysis is made using the free vibration response for multi-degree of freedom under initial conditions. Dynamic resisting force of pile and impact force are solved...

This paper presents the analysis method of complex vibration of open piling pier with rubber fender due to ship impact during the berthing maneuvers. The traverse round of ship and damping effect are considered. Introducing six degrees of freedom the stiffness matrix of the complex system with arbitrary arrangement of piling is derived. Dynamic analysis is made using the free vibration response for multi-degree of freedom under initial conditions. Dynamic resisting force of pile and impact force are solved by mode-superposition method.

本文对装有橡胶护舷的高桩墩式和栈桥式码头在船舶系泊时的撞击问题提出一种计入船舶横摇及阻尼影呐、考虑六个自由度的复振分析法。导出了桩基任意布置的复合体系的刚度矩阵,并按初始条件下的多自由度体系的自振问题进行动力分析。文中利用振型迭加法求解桩顶动反力及撞击力,文末对有关影响因素进行了分析。

The stability of high speed rotor bearing system is analysed by means of experimental modal analysis method.By this method,the information of system are synchronously sampled while rotor system is excited by a pulse force and,then,the stability of rotor system is evaluated by the criterion of logarithmic attenuation ratio according to the free vibration signals included within response information.The result shows that the excited free vibration response signals at the places far from exciting spots...

The stability of high speed rotor bearing system is analysed by means of experimental modal analysis method.By this method,the information of system are synchronously sampled while rotor system is excited by a pulse force and,then,the stability of rotor system is evaluated by the criterion of logarithmic attenuation ratio according to the free vibration signals included within response information.The result shows that the excited free vibration response signals at the places far from exciting spots include only the lowest order mode and the system damping in critical condition tends to make the system stable.

采用试验模态分析法对高速转子轴承系统稳定性进行分析.该分析方法是以一脉冲力激振转子系统时,同步采集系统的响应信息,并根据其响应信息中含有的自由振动信号,用对数衰减率判据评定转子系统的稳定性.结果表明:在远离激振点处激发出的自由振动信号仅含有系统的最低阶模态,界限状态下系统的阻尼有促使系统趋于稳定的作用.

 
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