plate element

For a right triangle bending plate element, the impedance matrix expansion terms to the second order are formed.

对直角三角形弯曲板元，建立了直到二阶的阻抗阵展开项。

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The analytical trial function method was used to extend the existing Kirchhoff triangular thin plate element, to the corresponding lock-free Mindlin triangular thick plate element.

为了有效克服剪切闭锁问题，利用已有的薄板单元构造厚薄板通用单元，提出了采用解析试函数法（ATF），将已有的Kirchhoff三角形薄板单元推广为相应的Mindlin三角形厚板单元的通用方法。

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The method overcomes the limitation of plate element under Kirchhoff assumption applied only to the thinnest laminated composite plate element with high modulus and thinner laminated composite plate element with low modulus. The method presents such advantages as simpler theory, wider application and greater accuracy.

该方法克服了在Kirchhoff假定下的板元素只能适用于很薄的高模量层合板元和较薄的低模量板元的局限性，具有实用性更广，精度较高的优点。

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Local dynamic effect modification of right-angled triangle plate element under arbitrary excitation

任意载荷激励下直角三角形板单元局部动力效应

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The singularity of thick and thin plate element stiffness matrix due to the use of the reduced integration on the basis of the finite element is investigated.

本文研究了薄厚板壳有限单元统一性理论中，由于采用降阶积分而使得刚度矩阵产生奇异的问题。

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This paper established two models of sonar target glint deviation using the highlight model and plate element method. The glint characteristic of rigid sphere and Benchmark targets was analyzed with these models.

本文分别利用声纳目标回波亮点模型与板块元方法建立了声纳目标角闪烁的两种模型，对刚性球及Benchmark目标的角闪烁特征进行了分析。

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Approach on the connection between plate element and 3-dimensional block element in SAP-5

SAP－5程序中板壳单元与三维块单元间联接问题探讨

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Mises yield condition and imitate moment yield limit with an exponent curve. Taken advantage of DKT plate element and a kind of compatible quadratic plane element including vertex rotations, an ideal shell element is formed.

Mises屈服条件，并对弯矩屈服极限用一指数曲线模拟，利用DKT板元和一种带有角点转角自由度的相容二次平面元来组成一种理想的平壳元。

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On the convergence of the fourth degree nonconforming plate element

关于四次非协调板元的收敛性

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The structure coordination and shear unlocking middle thick plate element is a problem to which people pay close attention in the finite element analysis of plate.

在板的有限元分析中，构造协调和无剪切闭锁现象的中厚板单元一直是人们所关注的问题和难题。

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In the case of thin plate, this thick/ thin plate element is degraded into corresponding thin plate element automatically and is free from shear locking.

对于薄板极限情况，这种厚薄板通用单元自动退化为原有的薄板单元，完全无剪切闭锁现象发生。

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A Curved Plate Element with Rib-beam

一种带肋的曲线板单元

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A thick-thin triangular plate element

一个厚薄板通用的三角形板弯元

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A Triangular Thick/ Thin Plate Element with Shear Strain and SUPplementary Deflection Fields

增补挠度场和剪应变场的厚薄板三角形广义协调元

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Thick/ Thin Rectangular Plate Element with Complementary Rotation and Shear Strain Fields

增补转角场和剪应变场的厚薄板通用矩形单元

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The correction mold of incomplete quadratic plate element

不完全双二次板元的修正型

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Research results: The analysis process of frame bridge with skew angle has been given by use of MIDAS. We obtained the outcomes from two models and the difference between results with 2D rigid frame and 3D space model of thick plate element.

研究结果：给出了用MIDAS分析斜交框架桥的详细分析过程，得出斜交框架桥三维空间模型和二维平面模型分析的结果，并得出2种模型计算结果的差别。

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Research methods: This paper analyzes the skew frame with 2D rigid frame and 3D space model of thick plate element with MIDAS Civil structure design system, and their results have been contrasted with comparison method.

研究方法：运用MIDAS有限元分析软件，分别建立厚板单元的三维空间模型和平面刚架的二维平面模型对某斜交框架桥进行分析，并采用对比法对2种模型结果进行对比。

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A Thin and Moderately Thick Plate Element Satisfying the IE Test and Its Application in Dynamic Eigenvalue Problems

通过单体检验的中厚板&薄板单元体及其在动力特征值问题中的应用

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