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1)  FRF matrix
频响矩阵
1.
A method is presented for FRF matrix measurement when multiple sinusoidal vibration response is controlled.
应用频响矩阵建立了多维振动系统输入输出之间的数学模型。
2)  generalized frequency response function matrix
广义频率响应函数矩阵
1.
The stability of multivariable nonlinear control system is discussed in connection with the generalized frequency response function matrix.
基于广义频率响应函数矩阵,讨论了多变量非线性系统的稳定性问题。
3)  response matrix
响应矩阵
1.
Research on groundwater management model and its application based on unit pulse saline intrusion response matrix;
基于单位脉冲-海水入侵响应矩阵的地下水管理模型及应用
2.
In view of demands of the optimum design on deep excavation(pit) dewatering under complicated hydrogeological condition,the pulse and response relation and principle between the state variable,and controlled variable in groundwater system as well as how to construct groundwater table response matrix are introduced.
基于解决复杂水文地质条件下矿(基)坑降水优化设计,介绍了反映地下水系统的状态变量与可控输入变量之间的脉冲与响应关系原理和构建地下水水位响应矩阵的基本方法。
3.
A method that fit the measured response matrix to the model response matrix is developed to calibrate the linear optics.
目前广泛开展的响应矩阵方法研究,可以分析出磁铁元件以及束流位置测量元件的误差,使束流基本参数得到校正。
4)  influence matrix
影响矩阵
1.
The results obtained by the non-linear programming method are in agreement with those by the influence matrix method.
基于分段悬链线法,介绍自锚式悬索桥主缆线形计算原理和步骤,考虑弯矩对加劲梁轴向刚度的影响,在迭代计算过程中,提出采用非线性规划方法,并与传统的影响矩阵法进行对比,计算结果表明,两者结果吻合,从而使借助大型通用优化软件对自锚式悬索桥主缆线形进行精确求解成为可能。
2.
This paper gives the example using cable-stayed bend bridge with minimum radius in China,offsetting unclosed state by influence matrix and iterative method.
以国内弯道半径最小的斜拉桥为例,引入影响矩阵,通过迭代消除不闭合问题,从而可使施工索力得到优化,达到预先设定的成桥内力和线形。
3.
An efficient computational method of the influence matrix is proposed for cable force optimi-zation so as to calculate the cable force of cable-stayed bridges under dead loads easily.
文章提出了一种简便的计算影响矩阵的方法,可以方便地进行斜拉桥成桥恒载索力优化。
5)  effect matrix
影响矩阵
1.
Application of BP neural network in the effect matrix of flatness control;
BP神经网络在板形控制影响矩阵中的应用
2.
By using the effect matrix,the nonlinear earthquake response of bridges under multi-support excitation is discussed in this paper.
通过影响矩阵讨论桥梁在多点激振下的非线性地震响应 ,并用算例比较一致输入和多点激振下的线性和非线性响应 ,讨论地震动输入方式和结构参数对地震响应的影响。
3.
In the nonlinear respondense analysis of bridges under multi support excitation,the effect matrix and Wilson θ method are used.
:用影响矩阵考虑了桥梁在多点激振下的非线性地震响应 ,并利用 Wilsom-θ法编制了相应的程序 。
6)  effective matrix
影响矩阵
1.
A concept of system effective matrix is presented, and subsequently, a new method-effective matrix based diagnosis is given.
提出了系统影响矩阵的概念,在此基础上提出了故障诊断的一种新方法——基于影响矩阵的诊断方法。
补充资料:频响范围
   

    从声学的角度来说,声音是以波的形式存在并传播的。而波是振荡的,波的单位是Hz(每秒钟振荡的次数),因此这也就成了声音的一个单位。声波的Hz数值越小,声音就越响,Hz值越大,声音就越小。从人耳的结构而言,理论上最轻听到20000Hz的声音(但在现实生活中几乎很少存在),而一些动物则可以挺高更高Hz数的声音,如狗据称可以听到50000Hz。

    MD机的频率范围在一定程度上指的是产品可以播放的响度范围,目前常见的是20-20,000Hz,但是实际上真的到了最大值或者是最小值,人耳实际上都是无法接受的。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条