2) reduced frequency
简约频率
3) frequencies into degeneration
频率简并
4) normal frequency
简正频率
1.
It will be more complicated to be calculated with the increase of degrees of freedom,but it will become easy if the method of transformation matrix by the computer is used,by means of which,we can gain normal frequency,normal coordinates and coupled oscillation graph of .
应用矩阵方法进行计算,随着系统自由度数的增加,计算工作量很大,为此必须借助计算机进行计算,得出系统的简正频率、简正坐标及耦和振动曲线图。
5) frequency constraint
频率约束
1.
Optimum design of midship section of container ships in view of crankle strength and frequency constraints;
考虑弯扭强度和频率约束的集装箱船中剖面优化设计
2.
Based on the application of first-order optimized calculation and sensitive analysis, an optimized design method with frequency constraint for cable-stayed bridge is proposed in the paper, and a relevant program has been made with general finite elemen.
文章通过运用一阶优化计算方法并引入灵敏度分析,提出了带频率约束条件的斜拉桥优化设计方法,并以通用有限元软件ANSYS为平台,编制了相应的程序,实现了斜拉桥结构在频率、应力、变形等约束条件下的设计优化。
6) frequency constraints
频率约束
1.
Topological optimization of continuum structure with static displacement and frequency constraints by ICM method;
用ICM法拓扑优化静位移及频率约束下连续体结构
2.
An evolutionary node shift method is presented for shape (geometry) optimization of a space truss structure with several frequency constraints.
在多阶固有频率约束条件下,采用“渐进结点移动法”,对空间桁架结构的形状进行优化设计,使结构重量达到最小。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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