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plate element
相关语句
  板单元
    On the Stress in Shell Plate Element in Direct Strength Analysis of Ship's Structure
    船舶结构强度直接计算中板单元应力的取法
短句来源
    What this paper does is as following:First, on the basis of Przemieniecki finite dynamic element concept, those are respectively calculated as follow: dynamic shape functions, dynamic stiffness and mass matrices of Timoshenko beam element and QUAD4 rectangle plate element.
    1.在Przemieniecki动态有限元概念的基础上分别构造了矩形四节点Kirchoff板单元和考虑剪切变形的Timoshenko梁单元的动态形函数阵,并推得其动刚度阵及质量阵。
短句来源
    The advantages that DEM needs less elements and can provide higher precision are revealed. Fifth, for plate element, using bubble function, starting with energy functional, a uniform DEM expression is deduced.
    5.对于板单元,本文利用了气泡函数(Bubble Function)的性质,从能量泛函出发,导出了统一的动态有限元列式。
短句来源
    In this paper,a vibration analysis model for stiffened plates of ship's local structures using Mindlin plate element and reference axis beam element is proposed. The model imcorporates the shear deformations of both, the plate and the stiffeners with the eccentric effect of the siffeners. A comparison of computational accuracy of different FEM models for vibration analysis of ship's stiffened plates are given.
    采用Mindlin板单元和参考轴杆单元,建立了考虑板剪切变形、骨架剪切变形和骨架偏心影响的船舶板梁组合结构振动分析模型,并研究比较了不同船舶板梁组合结构振动分析有限元模型的计算精度。
短句来源
    In this paper, the formulations and beam plate element model for large deformation analysis of eccentrically stiffened plates are presented.
    给出了偏心加筋板大变形分析的理论公式和相应的梁板单元模型 .
短句来源
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  板单元的
    On the basis of discussing on the beam element, the thickness of the plate element t and the inertia Iy as the parameters of sensitivity analysis were discussed to analyze the structure parameter by themethod of the difference sensitivity analysis.
    本文应用差分敏感性分析的方法对结构物理参数进行分析,通过前面对梁单元的讨论,将计算模型中敏感性分析的参数缩小为仅讨论板单元的厚度t_p和梁单元的惯性矩I_y。
短句来源
    On the basis of discussing on the beam element, the thickness of the plate element t and the inertia I_y as the parameters of sensitivity analysis were discussed to analyze the structure parameterby themethod of the difference sensitivity analysis. The more sensitive parameters were get after analysis, and it can be used to the amending of dynamical optimize.
    应用差分灵敏度分析的方法对结构物理参数进行分析,本文仅对板单元的厚度t_p和梁单元的惯性矩I_y进行灵敏度分析,得到灵敏度较高的单元,在此基础上进行结构动力优化。
短句来源
    Based on Smith method, the Simplified Progressive Collapse Method for analyzing ship structure ultimate longitudinal strength is presented by applying beam-column theory, elasto-plastic assumption, plane section assumption and plastic hinge theory. The whole procedure has been coded into a FORTRAN program called SPCM. The bending moment-curvature curve is calculated by integrating the moment of each stiffened plate element to the instant elastic neutral axis of the whole section.
    本文基于Smith方法,应用梁-柱理论、理想弹塑性假设、平截面假设和塑性铰理论建立了加筋板单元的应力-应变关系曲线,导出了船体结构总纵极限强度的简化逐步破坏分析方法并编制成FORTRAN计算程序。
短句来源
    Using Rahman's curves of the standard relationship of stiffened plate element,this article issues a progressive method to compute ultimate strength for Ships.
    基于RAHMAN建立的拉伸和压缩加筋板单元的标准应力—应变关系曲线,开发了船体极限强度的逐步破坏分析方法。
短句来源
  “plate element”译为未确定词的双语例句
    This paper takes a combination of plate element and concerntrated mass as the mechanical model. Beam model is used as the main hull when coupling vibration of superstructure and hull is taken into consideration so that to simplize the caluclation of the formation of mechanical model.
    本文提出了用膜元与集中质量的组合作为上层建筑物的力学模型,而在考虑上层建筑与船舶总体的耦合振动时主船体仍采用梁模型,从而简化了计算力学模型的形成工作。
短句来源
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  plate element
The first element is a thin-plate element that is based on the Kirchhoff plate assumptions and captures both membrane and bending stiffness effects.
      
The results indicate the differences in the dynamic response of the transverse shear deformable eight-noded element as compared to a four-noded plate element.
      
The development of a shear-deformable laminated plate element, based on the Mindlin plate theory, for use in large reference displacement analysis is presented.
      
An eight noded composite plate element for the dynamic analysis of spatial mechanism systems
      
The results have been included for the first few frequencies of the plate element for all the boundary conditions viz.
      
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The structural model test of a bulk carrier with topside tanks is carried out under four different loading conditions.The analysis is made by means of the finite element method in which beam elements and plate elements are employed. The technique of dependent nodes which are kinematically dependent upon the master nodesis introduced in order to reduce the number of degrees of freedom. The calculation method of equivalent nodal forces is discussed. It is found that the calculated results fitted...

The structural model test of a bulk carrier with topside tanks is carried out under four different loading conditions.The analysis is made by means of the finite element method in which beam elements and plate elements are employed. The technique of dependent nodes which are kinematically dependent upon the master nodesis introduced in order to reduce the number of degrees of freedom. The calculation method of equivalent nodal forces is discussed. It is found that the calculated results fitted the test data well.

对带有顶边水舱的散装货船的舷侧结构模型,在四种不同工况下进行了强度试验。用组合(杆和平面应力板单元)有限单元法进行了分析,为了减少独立自由度数,引进了运动上附属于主节点的附属节点,探讨了相当节点力的计算方法。计算结果与试验数据吻合程度较好。

A novel calculation method-composite modal synthesis method-is developed for fluid-structure coupling vibration. On the basis of hybrid substructure modal composed of fluid and solid substructure, this method combines bound mode(i. e. static transformative mode), which is applied to fluid substructure, with structure mode, which are treated as the following two modes, i. e. ( 1 ) Dynamic transformation mode given by the supe-relement modal synthesis method and( 2 )Craig' s fixed interface boundary mode, and...

A novel calculation method-composite modal synthesis method-is developed for fluid-structure coupling vibration. On the basis of hybrid substructure modal composed of fluid and solid substructure, this method combines bound mode(i. e. static transformative mode), which is applied to fluid substructure, with structure mode, which are treated as the following two modes, i. e. ( 1 ) Dynamic transformation mode given by the supe-relement modal synthesis method and( 2 )Craig' s fixed interface boundary mode, and transforms motion equations in two different ways for hybrid fluid-structure substructures by using the composite mode as the generalized coordinate. By applying the technique of first assembling fluid substructure and then assembling solid substructure, the method can eliminate all degrees of freedom of fluid element and all internal degrees of freedom of solid substructure while only maintain interfacing boundary degrees of freedom for solid substructure. The subsequently calculated matrix of the eigen value retains the same order with achievable by the superelement modal synthesis method and Craing's normal(principal) mode method, thus resulting in great reduction of computer time.This method has been applied for the calculation of the fluid-structure coupling vibration of a cubic rectanguler box composite plate elements of both curved elements and plane film elements, and for the finite elements of a three-dimensional rectangular body, and has given identical numerical results with integrated finite element method and experimental results of optical measurement testing.This method is especially applicable to the calculation of ship fluid-structure coupling vibration which features large amount of fluid-structure interfacing degrees of freedom and small amount of structural interfacing degrees of freedom, as well as to calculation problems of the same kind of offshore structure and other engineering structures. Compared with con ventional calculation method for fluid-structure coupling vibration, it is of practical significence and economic effectiveness.

本文提出了流固耦合振动一种新的计算方法——组合模态综合法。该方法建立在流体-固体有限元组成的杂交子结构模型基础上.对流体子结构采用约束模态(静力变换模态),同固体子结构的两种模态——模综超元法中的动力变换模态和Craig的固定界面模态进行组合,以组合模态作为广义坐标对流固杂交子结构的运动方程进行变换获得两种形式的计算方法。本方法中采用了先装配流体子结构后装配固体子结构的技巧,从而消除了流体元的全部自由度和固体子结构的全部内自由度,仅保留固体子结构对接边界自由度,使最后计算特征值的矩阵阶数保持与结构中的模态综合超单元法及Craig法的阶数完全相同,大大减少了计算机时。 通过曲弯曲板元和平面膜元的组合板元构成的立体方盒结构以及三维矩形有限元的流固耦合振动计算,获得了与P.C.Chowdhury用整体有限元计算及光测实验一致的数值结果。

This paper takes a combination of plate element and concerntrated mass as the mechanical model. Beam model is used as the main hull when coupling vibration of superstructure and hull is taken into consideration so that to simplize the caluclation of the formation of mechanical model. Both auto-counting of the mass of entrained water and model synthesis (dynamic substructure method)are adopted in the calculation program.Therefore, the coupling relation between the vibrations of superstructure and hull can...

This paper takes a combination of plate element and concerntrated mass as the mechanical model. Beam model is used as the main hull when coupling vibration of superstructure and hull is taken into consideration so that to simplize the caluclation of the formation of mechanical model. Both auto-counting of the mass of entrained water and model synthesis (dynamic substructure method)are adopted in the calculation program.Therefore, the coupling relation between the vibrations of superstructure and hull can be easily judged. The calculation method of the coupling vibration of superstructure and beam its computing procedure are emphatically describ ed in the paper. This method is useful to ship designers, especially at the detail design stages.

本文提出了用膜元与集中质量的组合作为上层建筑物的力学模型,而在考虑上层建筑与船舶总体的耦合振动时主船体仍采用梁模型,从而简化了计算力学模型的形成工作。计算程序采用自动计入附连水质量和模态综合法(动态子结构法)相结合的形成,可以方便地判断上层建筑与船体梁振动之间的耦合关系。本方法可供船厂设计人员在详细设计阶段使用。本文着重论述上层建筑与船体梁耦合振动的计算方法及其在电算程序中的计算步骤。

 
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