对于非线性杆件单元，本文提出一种新的简便有效的集成单元刚度矩阵的算法。
A simple and efficient method for integrating the nonlinear beam element stiffness matrix is presented in this paper.
本文给出了一般开链弹性机器人机构动力学方程。该方程是由关节广义坐标和杆件模态坐标联立的非线性微分方程组。
In this paper the governing equations of flexible manipulators are derived, which are nonlinear simultaneous differential equations of joint variables and link elastic modal coordinates.
本文根据作者提出的线性化方法，对于斜向波浪和水流作用下水平杆件上的拖曳力做了线性化。
Based on the linearization method presented by authors, the force spectrum on horizontal cylinder by diagonal wave and current is established.
利用杆件截面的弯矩—曲率关系，可以直接由弹性杆件的转角—位移方程建立单元的非线性刚度矩阵。
By using the moment-curvature relationships of the member section, the inelastic element stiffness matrix is derived directly from the slope-deflection equation of clastic member.
本文的主要目的是探讨在需要考虑几何非线性的情况下，开口薄壁杆件结构的地震反应时程分析。
The purpose of this thesis is to explore the geometric nonlinear seismic response time integration of open thin-walled frame structures.
以杆件非线性理论为基础，推导得出了杆件稳定分析的平衡方程。
Based on nonlinear theory for a bar, the equations of equilibrium were derived with consideration of the nonlinear effects.
本方法采用线性函数作为横截面翘曲位移的插值函数，适用于任意横截面形状和任意边界条件的薄壁杆件。
A linear function is used to express the warping displacements along the cross section of the thin-walled member.
根据各杆件的温度场求解结果，将非线性温度梯度等效成线性温度。
This temperature gradient mode provides the calculation basis about how to calculate the temperature effects for this type of the bridge.
根据各杆件的温度场求解结果，将非线性温度梯度等效成线性温度。
This temperature gradient mode provides the calculation basis about how to calculate the temperature effects for this type of the bridge.
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