By use of te slope-deflection method, the buckling equations and the effective length factor of rigid frame in sway and no-sway buckling modes are obtained. 用转角位移法对柱脚固接的刚架进行了弹性稳定分析,给出了刚架发生无侧移对称屈曲和有侧移反对称屈曲时的屈曲方程,并求出了相应的计算长度系。
The critical buckling strain is an important effect factor in the strain-based design of pipeline. 在基于应变的管道设计方法中,临界屈曲应变是一个重要指标。
From the test, several conclusion are made as follows: ( 1) the synthetic buckling safety factor of dam shoulder and foundation of Jinping ⅰ hydro-power station are determined as 4.68-4.94 and the security of the engineering is evaluated; 通过研究获得以下成果:(1)锦屏一级工程坝基坝肩综合稳定安全度,其值为4.68~4.94,由此评价了工程坝基坝肩的安全性;
First, the global response predictor ( such as deflection, frequency and buckling load) was computed from the general finite element analysis procedure without using shear correction factor. 首先按照一般的有限元分析过程(没有引入剪切修正系数)计算出全局响应(如挠度,频率和屈曲载荷等)的预测值;
Affect Analysis on Buckling Critical Pressure for Different Non-circular Section Factor 筒体椭圆度对外压失稳临界压力的影响分析
Taking a hat-stiffened composite panel of blended wing-body aircraft as example, the structural weight response surface is developed as objective function, and strength and buckling factor response surfaces as constraints. 以复合材料翼身融合体帽型加筋板的质量优化为实例,建立加筋板模型的重量响应面目标函数、强度和翘曲稳定性响应面约束条件;
Paper considers the influence of initial geometry defect using plate and shell finite elements, studies the ultimate carrying capacity of thick plate-welded or stiffened box-section compression bars and suggests reasonable buckling safety factor. 本文利用板壳单元,考虑几何初始缺陷和残余应力影响,对厚板焊接箱形压杆和带有加劲肋的箱形压杆的极限承载力进行了研究,并给出了建议的稳定安全系数取值。
In addition, the influence of initial imperfection to ultimate nonlinear buckling load must be considered in buckling analysis and the loading capability of joints may be a control factor in the design. 非线性屈曲荷载与特征值屈曲荷载相差较大;初始缺陷虽然对稳定极限承载力影响不明显,但是也不能忽视,而且节点承载性能也可能成为支架承载性的控制因素。
And then, the reactor geometry buckling and multiplication factor are given in output tapes. 反应堆的几何曲率和增殖因子在输出通道中给出。
The buckling coefficient and the effective length factor μ of the column are obtained by calculating the critical bucking conditions based on MATLAB. 4. The static and dynamic buckling of portal frame is simulated by using ANSYS. 用MATLAB编程计算双层门式刚架的动力临界屈曲条件,得到了动力屈曲参数,进而可得到柱的计算长度系数μ和屈曲参数k1。