查询词典 first order

The equations of buckled equilibrium were derived based on the displacement field of the first order shear-deformation theory.

用一阶剪切变形理论的位移场推导出5个屈曲平衡方程。

Based on stochastic finite element theory and first order second moment approach, the structural system dynamic reliability analysis methods are studied.

最后开发出适用于大型结构系统极限强度与静强度可靠性分析的程序系统，并由实际工程算例验证了算法的可行性与程序的可靠性。

By using virtue work principle and first order shear plate theory,the finite element formulations of piezoelectric sensors and actuators arederived.

给出了采用虚功原理及一阶剪切变形理论导出的压电传感和作动有限元方程。

By using o f the first order shear deformation shell theory, the strain-displacement relat ionships were presented.

采用Hamilton原理、压电理论和层合板壳的一阶剪切变形板壳理论，推导了压电层合板壳系统的运动方程。

The main research work involves:(1) Based on first order ODE approximation theory and Hopf bifurcation theory, the nonlinear motion stability of the train is studied emphatically.

2利用模型A和模型B研究了车辆系统的非线性运动稳定性，利用模型E和模型F研究了列车系统的非线性运动稳定性。

Rigorous first order vector couple-wave theory of planar grating are expanded to more complicated surface-relief grating case.

从计算结果可以看出：在特定的条件下，光栅可以达到非常高的衍射效率，理论上接近100％。

Based on the improved first order second moment theory and aimed at the problems of mechanical reliability analysis and mechanical reliability design of single designing variable, this paper put forward a kind of explicit iteration algorithm for computing the structural reliability and determining the designing parameters of structural reliability.

引言改进的一次二阶矩理论是结构可靠性分析和设计的一种实用方法[1]，具有建立结构可靠性分析和设计计算模型简单等优点，在这种方法中，Hasofer和Lind推荐的可靠度指标是定量评估机械可靠性的一种基本参数。

Based on the first order shear theory and the Von Karman non-linear assumption , the corresponding finite element formula was developed , and an appropriate progressive failure criterion was adopted.

基于一阶剪切理论和 Von Karman非线性变形假设建立了含分层损伤复合材料 A GS结构的有限元模型，并推导了考虑温度和湿度效应的 AGS结构有限元列式，同时给出了材料破坏准则。

After introducing the mechanism of seismic displacement control with dampers, 3 kinds of assessment functions for seismic response control effect are formulated based on the seismic response characteristics of longspan suspension bridges and a new optimal placement method of dampers using penalty function and first order optimization theory is proposed.

从地震位移控制的原理出发，根据大跨悬索桥结构地震响应的特点，建立了其地震位移控制效果的3种评估函数，提出了一种基于罚函数和一阶优化原理的阻尼器最优布置方法。

Based on deformation assumption and Mindlin first order shear deformation theory, a finite element method was proposed for free vibration analysis of the composite sandwich plates with debonded damage along the face/core interface.

基于Zig-Zag变形假定和Mindlin一阶剪切理论，提出了具有面板和芯体开裂损伤复合材料夹层板自由振动的有限元分析方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。