1) free vibration
自由振动
1.
Interval analysis for free vibration of composite laminated beams;
复合材料层合梁自由振动的区间分析
2.
The free vibration of the circular plate for the piezoelectric-piezomagneto and elastic media;
压电、压磁耦合弹性介质圆板的自由振动
3.
Transverse free vibration of asymmetrically supported composite beams with embedded SMA wires and subjected to thermal load;
热载荷作用下非对称支承嵌入SMA丝复合材料弹性梁的横向自由振动
2) Free floating
自由浮动
1.
The paper discusses Australia s experience with the transformation from managed floating to free floating and its relevancy to China.
该文介绍了澳大利亚汇率制度演变的历史进程和外汇管理的基本情况,探讨该国从有管理的浮动汇率转向自由浮动汇率过程中的经验教训,并结合当前我国经济、金融发展的现状,就完善人民币汇率形成机制、调整外汇管理政策以及发展、完善外汇市场等提出了若干思路。
2.
Since October 2001,Hungarian forint has experienced two kinds of exchange rate regimes: pegged exchange rate within horizontal bands and free floating.
2001年10月以来匈牙利福林汇率先后实行水平区间盯住和自由浮动制度。
3) free vibrations
自由振动
1.
Analysis of free vibrations of rectangular plates by barycentric rational interpolation collocation method
重心有理插值配点法分析矩形板自由振动
2.
The free vibrations of the system were disposed as one-demension problems,a semi-analytical method was presented to analyze the free vibrations of the systems,and the free vibration frequencies were obtained by Galerkin method.
基于Bernoulli方程,通过对弹性体与流场耦合作用机理的分析,建立了弹性底板矩形贮箱流固耦合系统的自由振动方程。
3.
Based on Flugge shell theory, the equations of free vibrations of a orthotropic circular cylindrical shell under hydrostatic pressure are obtained.
本文对静水压力作用下正交各向异性圆柱壳的自由振动特性进行了分析。
4) automatic routing
自动路由
1.
According to the actuality and characteristics of power line communication currently,an automatic routing method based on ant colony algorithm was presented,which could achieve remote meter reading.
针对当前我国电力线通信的现状和特点,提出了一种能够实现远程抄表自动路由的改进蚁群搜索算法,给出了路由协议的基本框架,并建立了路由模型。
5) Free-floating
[英]['fri:'fləʊtɪŋ] [美]['fri'flotɪŋ]
自由浮动
1.
Based on the assumption mode method, the Lagrange equation and the momentum conservation principle,the paper derived the dynamics model of a free-floating flexible dual-arm space robot that holds a rigid payload in a horizontal workspace.
本文基于假设模态法、La-grange方程和动量守恒原理,推导了一种自由浮动柔性双臂空间机器人协调操作刚性负载闭链系统的动力学模型。
6) vibration
[英][vaɪ'breɪʃn] [美][vaɪ'breʃən]
自由振动
1.
The aim of the present research is to investigate the free vibration features of the ring-stiffened cylindrical shell filled with fluid or empty.
分析中空和充液加肋圆柱壳的自由振动特性 ,基于Love壳体理论 ,列出了中空圆柱壳和考虑充液耦合下的振动微分方程 ,对于两端简支的边界条件 ,推导出关于中空和充液圆柱壳的频率的特征方程。
2.
An analytical numerical study was presented for the bending and vibration of RC cantilever plates strengthened with fiber\|reinforced polymer(FRP) strips.
基于 Reissner- Mindlin一阶剪切变形板理论 ,讨论了钢筋混凝土悬臂板在纤维增强复合材料补强情况下的弯曲及自由振动问题 。
3.
Frequencies of the simple propping square plate in vibration by using defletion of the static force were determined,and the frequencies formula for the simple propping square plate in vibration for dispersed and consecutive system were obtained.
利用静力挠度很方便地确定了简支方板作自由振动时的频率。
补充资料：自由振动
| 自由振动 free vibration 系统受初扰动后不再受外界激励时所作的振动。例如单自由度的弹簧振子，其振子质量为m，弹簧的刚度为k，且阻尼可以忽略，则其振动微分方程为mx+kx＝0。其解为x＝Asin(ωnt+j)，式中x为位移；t为时间；  为角频率，它与初始条件无关而取决于系统的参数，也称固有频率 ；A、j分别为振幅和初相位，由振子的初位移x0和初速度 确定： ；j＝arctg(ωnx0／ )( ≥0)，j＝π+arctg(ωnx0／ )( ＜0)。单自由度系统的无阻尼自由振动是简谐运动，其周期T 和频率f为：T＝1/ f=2π 。在无阻尼自由振动的过程中，系统的动能和势能不断地相互转换，且机械能守恒；其振幅决定于系统在起振的时候所具有的能量，且大小保持不变。有阻尼的自由振动参见衰减振动。 |
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