本文根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
浆纱机经纱退绕张力控制系统缺乏精确的数学模型，且具有非线性和时变性的特点。
Warp unwinding tension control system for sizing machine lacks an precise mathematical model, and has nonlinear and time-varying Characteristics.
考虑深海柔性张力腿平台的几何非线性特征，建立柔性平台结构非线性随机振动响应分析方法。
Considering the geometrical nonlinearity, a new method for the nonlinear random vibration of flexible Tension Leg Platform (TLP) is presented in this paper.
考虑表面张力的作用，研究了不可压缩、无粘性流体流过变化壁面时的共振流动，分析了不同的底部壁面变化对非线性表面波的影响。
The resonant flow of an incompressible, inviscid fluid with surface tension on varying bottoms was researched. The effects of different bottoms on the nonlinear surface waves were analyzed.
推导出张力腿平台六自由度有限运动非线性控制方程。
The governing differential equations of tension leg platform considering comprehensive nonlinearities are deduced.
研究了大型环状索杆张力结构这一新结构的几何非线性稳定性能，为其应用于实际工程提供了理论基础。
The large annular cable-bar dome is a new type structure. In this paper, the geometrical nonlinear stability of this structure was studied for the practical engineering .
文中还讨论了运动响应的非线性问题，最后对在生存海况下估算张力式平台纵荡及横荡的方法提出了看法。
The paper discusses the nonlinear problem of motion response as well as methods for predicting surge and sway of TLP in survival conditions.
根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
在驱动索系定位控制的同时，耦合索系张力分配的非线性控制，有效地避免了钢索虚牵。
Nonlinear control for distributing tension among cable network is applied simultaneously with positioning control of the cable drive architecture and effectively avoids runtime cable over-sagging.
由于卷绕系统是一个复杂的、非线性系统，收卷机的卷径时刻在变化，转动惯量也难以计算。张力调节器如采用传统的控制理论进行设计，不一定能获得很好的控制效果。
Because the rolling system is complicated, nonlinear, and its load is variable, if the tension controller is designed basing on the tradition control theory, we would not achieve good control effect.
MARE建立了平整分卷机组中张力装置的非线性有限元模型，通过实验验证，证明了模型的准确性与可靠性。
MARE, a nonlinear finite element modeling of the tension device in the skin pass mill for hot strip was built. The accuracy and reliability of this model was proved by experiments.
本文根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
印刷机张力系统是个变参数的非线性系统，它变速范围大，所以采用的是变频器驱动交流电机作为执行机构。
Tension system of gravure printing machine is a nonlinear system with variable parameters, the change of this system is very wide, so the author USES frequency conversion motor as its executive body.
本文研究海洋张力腿平台的张力腿由于涡激产生的非线性振动的稳定性。
The paper concerns the stability of Tension Leg Platform (TLP) tethers nonlinear oscillation induced by vortex shedding.
根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
桅杆的非线性是相当复杂的，它是由拉索的几何非线性和拉索的张力产生的，拉索的张力又依赖于拉索的几何位置。
Because the cables possess the geometric nonlinearity and the tension force depends on the geometric positions of cables, the nonlinearity of guyed mast is very complex.
纬纱张力系统是一个非线性、时变的系统，针对这一特点，采用模糊pid算法进行伺服控制。
Tension of warp system is time-variant and nonlinear system. According to characteristic of tension of warp system, Fuzzy-PID algorithm is adopted.
计算中同时考虑了几何和材料双重非线性的影响，给出了轧制压力、摩擦力和前后张力的分布。
In the calculation, both material and geometric nonlinearities are considered. The rolling pressure, friction, front tension and back tension distributions are given.
通过求解势流方程，获得了一个包含三阶非线性项、外激励及表面张力影响的非线性振幅方程。
A nonlinear slowly varying amplitude equation, which incorporates cubic nonlinear term, external excitation and the influence of surface tension, was derived from potential flow equation.
本文根据几何非线性有限元理论，采用8结点曲面四边形等参单元，编制了用于张力膜结构内力分析的有限元程序。
The internal forces in tensile membrane structures were analyzed using geometrical nonlinear finite element theory using curved quadrilateral isoperimetric 8 node elements.
根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with8 nodes for initial form analysis of tensile membrane structures is presented.
本文根据几何非线性有限元理论，采用8结点曲面四边形等参单元，编制了用于张力膜结构内力分析的有限元程序。
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
基于系统的非线性静平衡方程 ，通过最小二乘运算和优化策略 ，获得了适于伺服电机控制的索系平衡张力和索长。
Based on the nonlinear static equivalent equations of the cable-cabin system, forces and lengths suitable for servo motor control are obtained by least square method and an optimum strategy.
引入偏心空间薄壁梁单元及空间组合索单元，导出弹性刚度阵、几何刚度阵、质量阵。拉索张力随垂度变化的非线性由等效几何刚度计入。
Having introduced the eccentric space thin-walled girder and the space combined cable elements, the author has derived element elastic stiffness matrix, geometric stiffness and masse matrix.
引入偏心空间薄壁梁单元及空间组合索单元，导出弹性刚度阵、几何刚度阵、质量阵。拉索张力随垂度变化的非线性由等效几何刚度计入。
Having introduced the eccentric space thin-walled girder and the space combined cable elements, the author has derived element elastic stiffness matrix, geometric stiffness and masse matrix.
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