查询词典 be excited about

The dynamic properties of parametrically excited viscoelastic belts are investigated in this dissertation. The main contents are as follows.

研究粘弹性传动带系统和轴向运动弦线的动力学建模、横向非线性振动及其控制问题具有着重要的理论意义和实际应用价值。

Finally, we discussed the application of the bifurcation theory on nonlinear mechanical system. A parametrically and externally excited mechanical

最后，给出了结论与展望，概述了本文所获得的主要研究成果，并指出进一步研究的方向。

The system can be modeled as a parametrically excited equation with damping term and cubic terms of x and x, etc.

针对海洋工程中的潜水艇拖缆问题的参数激励方程，研究其稳定性和复杂动力学特性。

The analytic method,existence,stability and bifurcation of general stronglynonlinear nonautonomous system and parametrically excited system with peri-odic coefficient are studied in this thesis.

本文主要研究一般的强非线性非自治系统和周期参数激励系统的解析方法，周期解的存在性、稳定性及其分叉。

Active and semi-active controls for the parametrically excited instability of an inclined cable under support-motion excitations are studied in this thesis.

本文研究斜拉索在支座运动激励下参激不稳定性的主动与半主动控制。

One of multiple modes of the governing equation was obtained using Galerkin s method to obtain a parametrically excited Duffing s oscillator,and the fixed points and homoclinic orbit s .

用Galerkin方法将系统简化为参数激励和强迫激励耦合的单模态Duffing振子，得到了系统的不动点和同宿轨道。

Primary parametric resonance of a parametrically excited simply supported thin rectangular plate on nonlinear elastic foundation is analyzed.

分析非线性弹性地基上受参数激励小挠度矩形薄板的主参数共振问题，由冯卡门方程和伽辽金方法得到系统的非线性振动方程，它是杜分-马休型方程，应用非线性振动的多尺度法得到平均方程。

Based on the elastic theory of large deflection and by taking into account the variation of the axial force and its effects on bending deformation of the drillstring in vertical section ,the vibration of the drillstring induced by fluctuating weight on bit is described by a parametrically excited system.

基于弹性大变形理论，考虑到轴力沿钻柱轴线的变化及其对钻柱弯曲变形的影响等因素，将受自重作用的铅垂井段钻柱在波动钻压激励下的振动转化为一个参数激励系统，用 Galerkin方法首次得到了描述此系统的 Mathieu方程，并通过将方程的解展成富里叶级数的方法，得到了该振动系统的动力分岔值曲线及其所包围的动力不稳定区。

A simplified model is formulated in this paper to take account for the parametrically excited roll motion of a RoRo-ship in irregular following waves.

本文针对驶上驶下船在不规则艉浪中考虑参数激振横摇运动，推导简化之分析模式。

Using the method of strained parameters for the two types of the parametrically excited systems including nonlinear and/or linear coupling term, the stability regions were derived.

船舶顶浪情况下，采用约束参数法分别对非线性耦合和线性耦合的方程进行了稳定性分析，得到稳定区域传递曲线方程。

Those who loved reading were obliged to send for their books from England; the members of the junto had each a few

那些喜欢看书的人就得从英国购书，讲读俱乐部的的成员每人都有几本。

Three fourths of the earth's surface is covered with water.

地球表面的四分之三被水覆盖着。