• 单元阻尼实际的工程结构来说有意义

    The elemental damp proerty is more meaningful for real project structure.

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  • 为此,本文提出了两种处理即切线最小当量线性阻尼,并找出它们关系

    Two methods have been presented in this paper to treat this case. They are tangent method and minimum equivalent linear damping method. Their relation has been found, too.

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  • 理论上讲,优于传统固定阻尼共轭梯度

    For this theory, it is better than the traditional fixed damping conjugate gradient method.

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  • 同时针对阻尼绕组提出了用回路计算阻尼电流提出一种数据传递方式实施阻尼绕组的监测

    A multi circuit calculation method is suggested for calculation of the current of the damping winding bar and a method of data transfering is offered to monitor damping winding.

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  • 同时针对阻尼绕组提出了回路计算阻尼条电流,提出一种数据传递方式实施阻尼绕组的监测

    Be directed to damp winding damp bar is calculated though multi circuit method, and a way to transfer data is offence to monitor damping winding.

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  • 模态分析推广刚度矩阵可以导且质量矩阵、阻尼矩阵刚度矩阵均不必对称情形。

    The complex modal analysis method is generalized to the cases in which stiffness matrix may be singular and mass matrix, damping matrix and stiffness may be nonsymmetric.

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  • 本文采用自由振动”,设计了个等效单自由度振动体系,对核电站基岩阻尼特性进行实验研究。

    The damping characteristics of the bedrock in a nuclear power station are studied experimentally by free vibration system with one degree of freedom.

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  • 无条件稳定性证明,可不要求阻尼矩阵满足振型正交条件

    The proof of its unconditionally stable requires no damping matrix to satisfying the condition of the orthogonality of modes.

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  • 采用表面振动进行柴油机表面辐射噪声的诊断,并对附加自由复合阻尼薄壁进行辐射效率试验研究和整机试验。

    The experiment of sound radiation efficiency and engine noise test were carried out when the engine was equipped with thin-wall components with free and compound damping.

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  • 采用测试信号通过计算发电机组次同步电气阻尼特性分析设计SEDC发电机组次同步振荡的抑制效果。

    By using test signal method, the sub-synchronous electrical damping characteristics of a generator and the impacts of the designed SEDC on the generators electrical damping are analyzed.

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  • 写出阻尼谐振哈密函数,对直接量子化,分离变量得出了薛定方程

    The Schrdinger equation is given directly from the classical Hamiltonian function of a damping harmonic oscillator, and its solution is obtained by the separation of variables.

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  • 最后阻尼系数作了对比分析

    The method of small damping coefficient is discussed finally.

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  • 本文根据原型振动实测位移记录,应用时间识别求得了结构的前态的固有频率阻尼比。

    Some modal natural frequencies and damping coefficients of a structure are derived by means of in-sita testing displacement records and the time domain identification technique.

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  • 为了确定建筑结构阻尼本文采用了具有鲁棒性的临界激励

    In order to get the optimal damper of building structures, in the paper, a robust critical excitation approach is adopted.

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  • 采用板片状试样共振测定同一成分铸锭合金(IM)快速凝固粉末冶金(RSPM)铝合金的阻尼温度频率谱。

    The temperature spectra and frequency spectra of the damping capacity in the IM and RS/PM Al-Li alloys with the same composition were measured by the resonance method with the plate specimens.

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  • 摄动解决阻尼系统参数变化较大时特征值问题,具有较强的实用性

    The high-order perturbation method is very useful because it could solve eigenproblems even if the parameter of the damped has a great change.

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  • 悬链面找发现,黏性系数大于0.7时,动力松弛收敛,网格节点分布较无阻尼时均匀。

    During form-finding of catenoid, when the viscosity coefficient was not more than0.7, the dynamic relaxation method taking damp into account had good convergence and the nodes distributed more even.

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  • 将分段等效磁路应用于磁流变阻尼磁路计算

    A computation method of the partitions equivalent magnetic circuit is applied to the MR fluid damper.

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  • 采用刚度对某直升机救生绞车支架进行表面阻尼处理分析

    The complex stiffness method is adopted to carry out the analysis of surface damping treatment for the support of life winch of a certain typed helicopter.

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  • 识别阻尼比方面,本文传统半功率带宽改进阻尼识别精度得到很大提高

    At identify the model damping, this text returning rightly tradition take the breadth method to make improvement, make the accuracy to get very big exaltation.

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  • 阐述了弹性材料振动作用阻尼机理,指出声波模量统一性综述了互穿聚合物网络技术要点,并解释分离体系玻璃化转变区间形成机理;

    The damping mechanisms of viscoelastomeric materials under the vibration waves and the formation mechanisms of the wide range glass transition of micro phase separation IPNs systems are reviewed.

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  • 本文根据塑性关系,利用均匀塑性变形,推导挤压阻尼器的阻尼滞回模型

    Based on the rigid plastic constitutive equation of lead, the damping force model of lead extrusion damper was deduced from the even plastic deformation energy method.

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  • 运用层次分析我校生产机械阻尼器的质量、成本进行了优化研究。

    An optimal design with analytical hierarchy process on nuclear mechanical dampers manufactured by our university was described.

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  • 提出基于测试信号TCSC功率振荡阻尼(POD)控制器设计避免了计算庞大状态矩阵特征值计算。

    A new test signal method based approach to design power oscillation damping (POD) controller for TCSC is proposed, by which the bulky eigenvalue calculation of state matrix can be avoided.

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  • 有限元分析结构动态响应特性基础上,利用有限元分析得到结构表面振动速度分布,分析表面阻尼处理板结构的声辐射

    Based on the finite element analysis results of the dynamic properties of the structure, the acoustic radiation of the structure is analysed using the results of the surface velocity distribution.

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  • 首次将弹性阻尼耦合对应用到客车系统中采用特征值系统横向稳定性进行了分析。

    In this paper, the Elasto Damper Coupled Wheelset (EDCW) model is introduced in the passenger car system whose lateral stability behaviors are analyzed by eigenvalue method.

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  • 第一根据临界激励确定计算所有可能布置位置中的临界阻尼选择最小的临界阻尼位置作为配置

    The first method is based on the critical excitation, and the smallest critical damper among all placements is chosen as the optimal placement.

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  • 光学系统优化设计过程中,应用阻尼最小适应解决了相对孔径畸变MTF匹配问题。

    In optimized design, damped least squares method and adaptive procedure are used to get higher relative aperture, lower distortion and appropriate MTF, and so on.

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  • 光学系统优化设计过程中,应用阻尼最小适应解决了相对孔径畸变MTF匹配问题。

    In optimized design, damped least squares method and adaptive procedure are used to get higher relative aperture, lower distortion and appropriate MTF, and so on.

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