从能量原理出发,以最小应变能为控制条件,给出两点吊吊点最佳位置的设计。
Starting from the energy principle and regarding the minimum strain energy as control condition, we get the best position design of the hanging point.
较之仅着眼于纹尖场某一点的最小应变能密度因子理论,新判据更多地顾及到了尖端场的全局。
The new criterion includes the integral features of the whole field, while the theory of minimum strain-energy-density factor considers only a single point in the crack tip field.
作者工作的意义在于揭示了在适当的几何约束下,自组装形成的花样是总应变能最小的结果。
The significance of our work lies in the revelation that, under proper geometrical constraint, the various patterns can develop through minimization of the strain energy.
最小弯曲能量法以结构的弯曲应变能为目标函数,通过求出最小弯曲能量来求得合理索力。
The least bending energy method takes the bending energy as the objective function, and gets the reasonable cable forces by seeking the least bending energy.
通过对板料弯曲变形应力应变分析,提出了几种近似计算最小相对弯曲半径的方法。
A few methods, which approximately calculate minimum relative bending radius, are put forward by analyzing the stress and strain as plate bending deformation in this paper.
采用的力学准则为满应变设计准则; 在整个桁架结构重量满足一定约束的前提下,通过优化各杆件截面积,达到整体柔度最小。
Under the premise of the weight of the entire truss structure satisfying certain constraints, it achieved the minimum flexibility by optimizing the cross-sectional area of the bar.
试样内部各部位的应力大小分布不均匀,随应变速率的增大,最小应力值由自由变形的鼓形区域逐步向心部移动;
The effective stress of specimen is inhomogeneous. As the strain rate increases, the minimum stress value moves from the drum-shaped region to the heart of specimen.
以结构的总重量最小和结构的总应变能最大为优化目标,以导管的平均直径和壁厚作为设计变量,考虑强度、刚度和稳定等约束条件。
Total weight and seismic strain energy of the structure were selected to be optimal objectives. Average diameter and wall thickness of the structural element were taken as design variables.
在数值模拟中应用最小厚度作为成形极限判据,研究最小厚度值与应变路径的关系。
In numerical simulation minimum thickness was taken as forming limit criterion. The research on the relation between minimum thickness and strain paths was carried out.
本文将最小二乘法原理应用于应变式天平的静校。
The Principle of the least squares method is applied to the static calibration of strain guage balances.
为了从含噪声的位移场中计算得到可靠的应变场,提出一种基于位移场局部最小二乘拟合的全场应变求解方法。
In order to obtain reliable strain field, full-field strain measurement based on least-square fitting of local displacement for digital image correlation method is proposed.
首次提出了影响矩阵的最小扭转应变能设置支座预偏心的方法,推导出了合理支座预偏心值的数学表达式。
The suitable bearing eccentricity method of influence matrix minimum torsion strain energy was presented for the first time, and the expression of the value of bearing eccentricity was educed.
三种材料不同缺口根半径试样最小横截面上应力三维度和等效塑性应变分布形态相似。
The stress triaxiality and equivalent plastic strain distributions at the minimum cross-section of specimens with different notch root radius are similar for such three kinds of materials.
在特征定位的矩形框内限定变形模板的参数范围,当能量函数达到最小值时对应变形模板匹配的最佳位置。
Parameter ranges of the deformable templates are limited in the rectangle of feature location, and energy function minimum corresponds to the best position of facial feature.
以“弯曲应变能最小”为优化准则、采用“三步循环坐标搜索法”求解最优吊点坐标。
Using the criterion of "minimum bending strain energy", the optimum hoisting points of the column are determined with the method of "three step cycling coordinate search".
结果显示广义应变花法应变的计算精度比最小二乘配置法高。
The result shows that GSRM has higher accuracy than LSCM in strain calculation.
以薄壳结构整体应变能最小为目标,建立了薄壳屋盖的形状优化与拓扑优化模型,并提出了薄壳屋盖形状优化与拓扑优化的的求解方法。
In this paper, aimed at minimizing the whole strain energy of thin shell structure, the model of shape optimization and the topology optimization were built up.
以初始应变能最小为预应力优化目标和重量最轻为截面优化目标进行了优化设计,获得了合理的初始预应力分布和截面大小。
Taking the minimum initial-strain of the structure as the objective function of the optimal prestress design and the minimum light of the structure as the.
从应变能的最小化考虑,这些取向的晶粒将依次优先生长。
Considering strain energy minimization, we predicate that the grains with these orientations should be favorable in crystal growth successively.
为了获得可靠的应变场,满场应变测量最小二乘法拟合的局部位移的数字图像相关方法的基础上提出的。
In order to obtain reliable strain field, full-field strain measurement based on least-square fitting of local displacement for digital image correlation method is proposed.
试样端面沿径向的等效应变和显微硬度不同,心部最小,边缘处次之,中间区域最大。
The strain-effective and microhardness of different regions in the specimen are different, the center region is smallest, the corner region is bigger, the middle region is biggest.
以三维有限元模拟的应变值与三轴压缩实验观测应变数据残差平方和最小为参数反演的目标函数。
The objective function was defined as minimization between strains obtained from finite element method and ones observed from three-axial compression test in laboratory.
结果显示广义应变花法应变的计算精度比最小二乘配置法高。
The result shows that GSRM has higher accuracy than LSCM in strain...
结果显示广义应变花法应变的计算精度比最小二乘配置法高。
The result shows that GSRM has higher accuracy than LSCM in strain...
应用推荐