The unit pressure in backward extruding hollow billet has been calculated by the slip line method and the upper bound method.
本文对空心件反挤的单位挤压力,采用滑移线法和上限法进行了计算。
The three-dimensional limit method for slope stability analysis includes the upper bound method and the 3d limit equilibrium method.
边坡稳定三维极限分析方法有上限解和极限平衡两种方法。
A set of equations determining the neutral Angle, rolling torque and the slip condition in asynchronous rolling are derived by upper bound method.
应用上界法推导了一组可确定异步轧制时的中性角、轧制力矩和打滑条件的方程。
The upper bound method of limit analysis can be used for the stability analysis of reinforced earth; the internal works on the slip plane is the crux of the stability analysis.
将极限分析上限法用于加筋土结构物稳定性分析的关键是滑动面上内力功如何计算的问题。
Furthermore, a generalized upper bound method for powder metallurgical material in plane strain was developed and its application was illustrated by analyzing the plane strain extrusion.
基于此建立了粉末冶金材料平面应变广义上限法,并以平面应变挤压为例说明了该方法的应用。
With upper bound method and least energy principle, the conditions are established of drawing and breaking workpiece with cross wedge rolling technique to form axial symmetry spare parts.
利用上限原理和最小能量原理,获得了用楔横轧工艺成形阶梯轴类件时杆部拉断的条件。
Two methods of the minimum expenses and maximum flux and the table dispatching method to the rotating-transporting problem with a transport amounts upper bound were given.
对运量有上界的转运问题进行研究,给出了求解此类问题的两种求解算法:表上作业法和最小费用最大流法。
Earth pressure calculation based on upper bound theorem of plasticity can be numerically performed by element integration method.
基于塑性力学上限定理的土压力计算,在数值上可以通过单元集成法来实现。
In this paper, the method of extremum of the product function is used to analyze upper bound seismic base shear force of the existing overpass and the calculation formulas are gotten.
本文利用积函数极值法,从地震作用的角度出发,推导并建立了已建立交桥桥墩的基底剪力的表达式。
Usually the ratio of the upper bound to the lower bound is larger than 2, resulting in the computational burden of the proposed method less than 1.4 times of that of the autocorrelation method.
由于进动周期的上下限之比通常大于2,因此该方法的计算量比自相关法增大的倍数小于1.4;同时它对先验信息的要求非常宽松。
The upper bound limit analysis of the slope is numerically performed by element integration method(EIM) .
边坡稳定的上限分析在数值上是利用了单元集成法来完成的。
The model element method includes both finite element method and upper bound element method and can compensate each to other.
模型元法的特点是既包容有限元法,又包容上限元法,使三者相互取长补短,互为基础。
A new method to determine the limit load of reinforced concrete deep beam when sheared was presented by upper-bound method based on reinforced concrete plasticity theory.
本文以钢筋混凝土塑性理论为基础,用上限方法确定了钢筋混凝土深梁剪切破坏时的极限荷载的计算方法。
A upper bound with consistent matrix norm and the estimate for error of AOR iterative method for solving linear equation system, which based on the doubly diagonal dominance, are presented.
在双严格占优矩阵条件下,给出了相容矩阵范数的一个上界,并以此为基础,得到了线性方程组求解时的AOR迭代法的误差估计式。
Mechanics characteristic for deep-drawing process of panel parts is analysed by upper-bound method.
用上限法分析了覆盖件在拉深过程中的力学特征。
A new method is proposed to calculate the temperature jump during high-speed wire finish rolling through upper-bound triangular velocity field.
提出了以上界三角形速度场计算高速线材精轧阶段温升的方法。
Bearing capacity analysis based on the upper bound theorem of plasticity could be numerically performed by element integration method.
基于塑性力学上限定理的地基承载力分析,在数值上可以通过单元集成法来实现。
This paper simulates the deformation process of ironing deep drawing by means of the upper bound element method.
利用上限元法对变薄拉深过程进行了数值模拟。
To obtain robust stability and lower guaranteed cost of interval matrix fault tolerant systems, a method of determining the minimum upper bound of the real symmetric matrix set is proposed.
为了获得强大的稳定性和更低的区间矩阵的容错系统,保证成本的方法确定最小上界的实对称矩阵集。
In this paper, the rigid plastic finite element method is applied to analyze ring compression and the results are compared with those of the upper-bound method and experiments.
本文采用刚塑性有限元法分析圆环压缩,并与上限法分析和试验结果进行比较。
The limit external load could therefore be solved from the upper bound limit theorem, and its minimum value could be obtained from the optimization method.
然后,根据上限定理可以求得与滑动机构相对应的极限外载荷,并通过非线性数学规划法找到其最小值。
The flow function method is used to build the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of wide section Aluminum shape extrusion.
用流函数法确定了宽截面薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。
The flow function method is used to define the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of solid aluminum shape with thin wall extrusion.
用流函数法确定了实心薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。
A new multi-block upper-bound method was presented herein to calculate the bearing capacity of two-layer foundation soils and calculation of the kinematical velocity fields was discussed.
将一种新的多块体离散模式的上限方法应用于双层地基极限承载力的计算,详细探讨了该多块体离散模式应用时相容速度场的确定方法。
For locating the critical failure surface, the particle swarm or the harmony method is used, which is an upper bound approach.
而搜索临界滑裂面的过程,采用粒子群法或和声法搜索最危险滑动面。
For locating the critical failure surface, the particle swarm or the harmony method is used, which is an upper bound approach.
而搜索临界滑裂面的过程,采用粒子群法或和声法搜索最危险滑动面。
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