助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   free vibration equations 的翻译结果: 查询用时:0.173秒
图标索引 在分类学科中查询
所有学科
力学
更多类别查询

图标索引 历史查询
 

free vibration equations
相关语句
  自由振动方程
     Nonlinear Free Vibration Equations of Suspension Bridges
     悬索桥的非线性自由振动方程
短句来源
     The real mecheanics model of pantographs is analyzed with master/slave freedom technique in this paper The element stiffness matrix of pantograph and the free vibration equations under hybrid coordinate are derived.
     本文利用主从自由度概念分析了剪式单元真实的力学模型,并推导了混合坐标下剪式单元的刚度矩阵和自由振动方程
短句来源
     Based on simplified Donnel shell theory and acoustic wave propagation equation in a pipe with fully developed turbulent flow, free vibration equations of fluid flowing piping system were derived. Types of wave corresponding to various circumference mode ( n =0, 1, 2, 5) and various axial wavenumber were analyzed in details. The fundamental types of wave were determined which were responsible for vibration energy transmission in pipe.
     推导了含流动流体管道耦合系统自由振动方程,对管内流体声压的特征,不同周向模式(n=0,1,2,5)和不同轴向波数所对应的波类型进行了分析,从而确定决定流体管道中能量流的基本波类型.
短句来源
     Bending-torsion-liquid coupling free vibration equations of a semi-circule curved pipe conveying fluid is derived, based on D. Alembert principle.
     根据D. Alembert原理导出了半圆形输液曲管弯曲-扭转-流体耦合问题的自由振动方程
短句来源
     Based on Bernoulli equation,the mechanism of solid-fluid interaction was analyzed,and the free vibration equations of solid-fluid interaction rectangular containers with elastic bottoms were established.
     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.
短句来源
  “free vibration equations”译为未确定词的双语例句
     Based on Maxwell, Kelvin, generalized Kelvin and Poyting-Thomson(P-TH) models, the free vibration equations of viscoelastic thin plate are derived, and the analytical solutions to the natural frequencies are given for thin rectangular plate on Maxwell and kelvin models. Their dynamic behaviors are analysed and compared.
     基于Maxwel、Kelvin、广义Kelvin和Poyting-Thomson(P-TH)模型导出了粘弹性薄板的振动微分方程,给出了Maxwel模型和Kelvin模型矩形薄板的固有频率的解析解,并对其振动特性进行了分析和比较。
短句来源
     In this paper, the alternate iteration method is used in static analysis of cable truss hybrid structural system, and the simplified non damping free vibration equations have been drawn.
     本文采用交替迭代法分析索—桁结构体系,并导出了这种杂交结构无阻尼自由振动的简化方程。
短句来源
     Based on Maxwell,Kelvin,three elements models of viscoelastic foundations,the free vibration equations of viscoelastic foundation plate on viscoelastic foundations are derived. And the analytical solutions to the natural frequencies are given for viscoelastic rectangular plates of Kelvin and three elements models on Kelvin viscoeastic foundations. Their dynamic behaviors are analyzed and compared for different models.
     推出了Winker粘弹性地基上Maxwell,Kelvin和三元件3种粘弹性薄板在时间域上的动力学方程,给出了Kelvin粘弹性地基上Maxwell模型和三元件模型矩形薄板的固有频率的解析解,并对振动特性进行了分析和比较,最后给出了算例和结果分析。
短句来源
     With the elastic bearing, the model of elastic bending beam was firstly used to simulate the cable and deck of cable-stayed bridge. The dynamic governing equations of beam of multi-cables and one girder composite structure were derived by Hamilton’s principle and the free vibration equations of beam with consideration of axial force.
     将斜拉桥的拉索和桥面抽象为带弹性支承的压弯弹性梁模型,并根据轴向受力梁的弯曲振动方程和哈密尔顿原理,建立了考虑拉索索力影响的单梁多索索梁结构-梁的动力学控制方程,应用传递矩阵法进行求解,并编制了求解程序.
短句来源
  相似匹配句对
     SYMMETRICAL FREE VIBRATION OF BELLOWS
     单层波纹管的轴对称振动
短句来源
     Free-vibration of waist structures
     带腰架结构的自由振动研究
短句来源
     Nonlinear Free Vibration Equations of Suspension Bridges
     悬索桥的非线性自由振动方程
短句来源
查询“free vibration equations”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  free vibration equations
The time domain free vibration equations of motion are obtained by applying the principle of virtual work, and are mapped into the frequency domain by the harmonic balance method.
      
With the Kirchhoff hypothesis of plate, the free vibration equations of the piezoelectric rectangular plate considering damage is established.
      


Currently used finite dynamic elements are all expressed by frequency expansions of both mass and stiffness matrices, namelyThus, for a finite dynamic element a set of mass and stiffness matrices of successive orders must be established, In the present paper the impedance matrixfor finite dynamic element is proposed.Basing upon; this new concept, instead of deriving mass and stiffness matrix expansion terms separately, only expansion terms D'f s of D(ω) are to be derived, hence the formulation of finite dynamic...

Currently used finite dynamic elements are all expressed by frequency expansions of both mass and stiffness matrices, namelyThus, for a finite dynamic element a set of mass and stiffness matrices of successive orders must be established, In the present paper the impedance matrixfor finite dynamic element is proposed.Basing upon; this new concept, instead of deriving mass and stiffness matrix expansion terms separately, only expansion terms D'f s of D(ω) are to be derived, hence the formulation of finite dynamic element is simplified significantly. Furthermore, the incorrect stiffness matrix term K1 derived in some previous studies is avoided automatically. Thus the second order finite dynamic element free vibration equation can be consistent with the conventional finite element equation. It is shown that there exist definite relations between the mass-stiffness matrix pair and the impedance matrix expansion terms, namelyThe finite dynamic element impedance matrices of two dimensional membrane, rectangular and triangular plate elements as well as one dimensional bar and beam elements are established.The element shape function vector a is expanded inThe α'i s are derived as follows:For a×b rectangular membrane, the governing equations are and the boundary conditions areFinal results obtained area0 is determined to be the same as for the conventional finite element method, while the remaining aif s are found by Galerkin method.For plate elements the procedures of derivation are similar to that just mentioned above.Illustrative examples of membrane and cantilever plates both rectangular an triangular are worked out, numerical results are compared with those obtained by conventional method.In the present paper the finite dynamic element method is shown to be a special case of higher order Guyan reduction. Thus, from Guyan reduction analysis a frequency limitation criterion and error estimation formula for finite dynamic element are established. Numerical checks confirm the feasibility of these formulas.

动态有限元一般都是用质量阵和刚度阵的频率展开式来表示的。本文作者提出用单一的阻抗阵代替上述质量阵和刚度阵来建立动态有限元更为方便,并且可以自动保证不产生不应该有的刚度阵展开式中与频率平方相应的项。此外,可以证明在质量-刚度矩阵对的展开项和阻抗阵的展开项之间有着确定的关系式。本文综合介绍了作者对于薄膜、长方板及三角形板元的阻抗阵所作的推导工作,展开式只建立到频率平方的二次项。因此,解算具体例子都归结为二次矩阵特征值问题。最后,借助于和Guyan缩聚的对比及分析,本文对动态有限元提出一频率展开的频率限制判据以及误差估计公式。

Taking the advantages of Spline Function Substructure Method and Synthetic Discrete Method, the authors propose a new method for dynamic property analysis of high-rise tube structures. For the purpose of analysis Plane stress element with four nodal points of orthogonal anisotropy is derived. In addition, an analytical method of independent column substructures is given. In defining the displacement patterns of nodal points, the cubic B-spline function and variant intervals spline function are used in vertical...

Taking the advantages of Spline Function Substructure Method and Synthetic Discrete Method, the authors propose a new method for dynamic property analysis of high-rise tube structures. For the purpose of analysis Plane stress element with four nodal points of orthogonal anisotropy is derived. In addition, an analytical method of independent column substructures is given. In defining the displacement patterns of nodal points, the cubic B-spline function and variant intervals spline function are used in vertical and horizontal (peripheral) directions, respectively. With generalized displacements as unknowns the horizonto-torsional coupled free vibration equations are established. The numbers of D. O. F. are only related to the term number of horizontal displacement functions but not to the storey number. Clear concept, high accuracy and less computation are the advantages of the proposed method. The numerical results of the examples show a good agreement with those of model experiments.

吸取样条函数子结构法和综合离散法的优点,形成了高层筒体结构动力特性分析的新方法:样条子结构—综合离散法。推导了正交各向异性的4结点平面应力单元,还对独立柱子结构提出了处理方法。对于结点位移模式,沿子结构的纵向采用3次B样条函数,沿周向采用3次不等距样条函数。根据动势能驻值原理,建立以广义位移为未知量的筒体结构平扭耦连自由振动方程。计算中结构自由度数目与水平位移函数的项数在关,而与结构的层数无关。本文方法概念明晰,精确度高,计算工作量少。算例结果表明,本文结果与实验结果吻合良好。

In this paper, Frame-Shear wall structure is divided into frame substructure and shear wall substructure by cutting the connecting beams. The vibration equation for shear wall substructure is set up according to Timoshenko Cantilever beam. The vibration equation for frame substructure is set up according to frame structure. The mode synthesis technique is used to set up the free vibration equation of frame shear wall structure. A numerical example shows that our method is simpler...

In this paper, Frame-Shear wall structure is divided into frame substructure and shear wall substructure by cutting the connecting beams. The vibration equation for shear wall substructure is set up according to Timoshenko Cantilever beam. The vibration equation for frame substructure is set up according to frame structure. The mode synthesis technique is used to set up the free vibration equation of frame shear wall structure. A numerical example shows that our method is simpler and more precise.

本文以连杆节间为界,分别按铁木辛哥(Timoshenko)梁建立剪力墙振动方程,按一般框架建立框架振动方程,由模态综合法建立整个框架一剪力墙结构的自由振动方程,并据此计算其自由振动.通过算例说明本文方法较为精确简便,可直接手算或在微机上运算.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关free vibration equations的内容
在知识搜索中查有关free vibration equations的内容
在数字搜索中查有关free vibration equations的内容
在概念知识元中查有关free vibration equations的内容
在学术趋势中查有关free vibration equations的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社