单元阻尼法,对实际的工程结构来说更有意义。
The elemental damp proerty is more meaningful for real project structure.
为此,本文提出了两种处理方法,即切线法和最小当量线性阻尼法,并找出了它们的关系。
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.
从理论上讲,它要优于传统的固定阻尼共轭梯度法。
For this theory, it is better than the traditional fixed damping conjugate gradient method.
同时针对阻尼绕组提出了用多回路法计算阻尼条电流的方法,并提出一种数据传递方式实施对阻尼绕组的监测。
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.
同时针对阻尼绕组提出了用多回路法计算阻尼条电流,并提出一种数据传递方式实施对阻尼绕组的监测。
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.
把复模态分析法推广到刚度矩阵可以奇导且质量矩阵、阻尼矩阵和刚度矩阵均不必为对称的情形。
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.
本文采用“自由振动法”,设计了一个等效单自由度振动体系,对某核电站基岩的阻尼特性进行了实验研究。
The damping characteristics of the bedrock in a nuclear power station are studied experimentally by free vibration system with one degree of freedom.
法的无条件稳定性的证明,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.
采用表面振动法进行了柴油机表面辐射噪声的诊断,并对附加自由和复合阻尼的薄壁件进行了声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.
采用测试信号法,通过计算发电机组的次同步电气阻尼特性,分析所设计的SEDC对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.
写出阻尼谐振子的哈密顿函数,对其直接量子化,用分离变量法得出了薛定谔方程的解。
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.
最后就小阻尼系数法作了对比分析。
The method of small damping coefficient is discussed finally.
本文根据原型振动实测的位移记录,应用时间域识别法,求得了结构的前几阶模态的固有频率和阻尼比。
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.
为了确定建筑结构的最优阻尼,本文采用了具有鲁棒性的临界激励法。
In order to get the optimal damper of building structures, in the paper, a robust critical excitation approach is adopted.
采用板片状试样的共振法,测定了同一成分的铸锭合金(IM)和快速凝固粉末冶金(RS/PM)铝锂合金的阻尼温度谱和频率谱。
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.
高阶摄动法能解决阻尼系统参数变化较大时的特征值问题,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.
对悬链面找形时发现,当黏性系数不大于0.7时,动力松弛法收敛,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.
将分段等效磁路法应用于磁流变阻尼器的磁路计算。
A computation method of the partitions equivalent magnetic circuit is applied to the MR fluid damper.
采用复刚度法对某型直升机救生绞车支架进行表面阻尼处理的分析。
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.
在识别模态阻尼比方面,本文还对传统的半功率带宽法作了改进,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.
阐述了粘弹性材料在振动波作用下的阻尼机理,指出声波法和模量法的统一性。综述了互穿聚合物网络技术要点,并解释相分离体系宽玻璃化转变区间的形成机理;
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.
本文根据铅的刚塑性本构关系,利用均匀塑性变形能法,推导了铅挤压阻尼器的阻尼力滞回模型。
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.
运用层次分析法对我校生产的机械阻尼器的质量、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.
提出了一种基于测试信号法的TCSC功率振荡阻尼(POD)控制器的设计方法,避免了计算量庞大的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.
在用有限元法分析结构动态响应特性的基础上,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.
首次将弹性阻尼耦合轮对应用到客车系统中,并采用特征值法对该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.
第一种方法是根据临界激励法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最优配置。
The first method is based on the critical excitation, and the smallest critical damper among all placements is chosen as the optimal placement.
在光学系统优化设计的过程中,应用阻尼最小二乘法和适应法解决了大相对孔径、低畸变和MTF匹配等问题。
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.
在光学系统优化设计的过程中,应用阻尼最小二乘法和适应法解决了大相对孔径、低畸变和MTF匹配等问题。
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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