2) flutter derivatives
颤振导数
1.
Identification of flutter derivatives of full-bridge aeroelastic model;
全桥气弹模型颤振导数识别
2.
Simulations for identification of flutter derivatives of bridge section using the coupled-forced-vibration method;
桥梁颤振导数的耦合强迫振动仿真识别
3.
The identification of flutter derivatives for 2-DOF and 3-DOF bridge sectional model applying the forced vibration method;
两自由度及三自由度桥梁断面颤振导数的强迫振动识别法
3) flutter derivative
颤振导数
1.
Based on static dynamic force test of segmental models of Chongqing Chaotianmen Bridge,dynamic force test,the varying law of the coefficients of three-dimensional static component forces with the changing of attack angles and properties of main girder and main arch,and flutter property of main girder are obtained,and eight flutter derivatives of main girder are recognized.
通过重庆朝天门长江大桥的节段模型静力试验和动力试验,获得了主梁及主拱的静力三分力系数随攻角的变化规律、主梁的颤振特性,识别了主梁的8个颤振导数,并对试验获得的结果进行了详细分析;对该桥的主梁和主拱结构的抗风性能进行了评价。
2.
It is found that the flutter derivatives are dependent from the amplitude and frequency in the practical range of wind speed.
利用我们开发的国内第一个强迫振动法试验方法 ,研究了三种不同断面的桥梁颤振自激力特性和Scanlan提出的颤振导数理论的若干假定。
3.
Model stiffness and support location effect on flutter derivatives is studied in bridge deck section dynamical test.
通过试验研究了桥梁节段模型动力试验中模型本身的刚度和支撑位置对颤振导数测量结果的影响 。
4) vibrational induction
振动诱导
1.
The experimental equipment of vibrational induction for dynamically full vulcanization was designed and used to measure and analyze the property and micromorphology of thermoplastic vulcanite(TPV).
在开发设计的振动诱导动态全硫化实验装置上,对热塑性硫化橡胶(TPV)的性能与微观形态进行了测试与分析。
5) induced vibration
诱导振动
1.
Scale prevention with flow induced vibration in heat exchanger tubes of different materials;
不同材质换热管内流体诱导振动阻垢技术研究
2.
Analysis on Dynamic Characteristic and Flow Induced Vibration of Heat Exchanger Tube Bundles;
换热器管束动态特性分析及流体诱导振动研究
3.
First, a uniform viscous and incompressible flow past a circular cylinder was simulated by using the Ansys/Flotran CFD software, then the induced vibration for a viscous flow past a circular cylinder supported by elastic spring and dash pot was simulated with the Ansys/Flotran CFD software and stepwise integration.
利用计算流体力学软件Ansys/FlotranCFD,首先对粘性不可压缩流体的固定圆管绕流进行了数值模拟,然后结合逐步积分法完成了同时考虑纵横两向弹性支撑圆管绕流旋涡脱落诱导振动的数值模拟,并通过快速傅立叶变换,得到了弹性支撑圆管和固定圆管的升力及弹性支承圆管横向位移响应的功率谱。
6) vibration of overhead line
导线振动
补充资料:点振子振动和点电极振子振动
分子式:
CAS号:
性质:又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内,形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积,且与厚度有适宜的匹配关系。在交变电场作用下,沿厚度方向产生振动,其振幅随着至电极中心距离的增加,呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄,有时考虑到压电陶瓷自身强度太低,可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。
CAS号:
性质:又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内,形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积,且与厚度有适宜的匹配关系。在交变电场作用下,沿厚度方向产生振动,其振幅随着至电极中心距离的增加,呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄,有时考虑到压电陶瓷自身强度太低,可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。
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