The cause of die snarl-up for profiles during extruding was analyzed from the aspects of ingot,extruding condition,die and inhomogeneous deformation,etc.
从6063铝合金铸锭、挤压工艺条件、模具、金属的不均匀变形等方面分析型材挤压时发生“堵模”现象的原因;提出了其防止措施。
The damage of the final forging and its deformation uniformity are considered into the multiple-objective function.
提出了一种基于有限元分析和序列二次规划的热锻成形工艺多目标优化方法,优化目标包含锻件的内部损伤值和变形均匀性两个方面。
The preform design applying the method for preform optimization based on FEM can improve the deformation uniformity within forgings effectively.
应用基于正向有限元数值模拟和最优化方法进行坯料预成形设计的新方法,可显著提高锻件各部位的变形均匀性。
The deformation uniformity of the new process has been improved significantly.
本文提出了一种新的工艺措施 ,采用大型体积成形商业化软件 DEFORM进行了有限元数值模拟 ,并与普通镦粗的模拟结果进行了比较 ,发现变形均匀性得到了很大提
The optimization aimed to increasing the deform uniformity of the forging is carried out.
以单工序锻件为研究对象,对提高锻件变形均匀性的优化设计进行了研究。
Using the self-developed optimization design software,the multiple objective function include the deform uniformity and the force of the forging is carried out based on the rigid visco-plastic FEM.
基于刚粘塑性有限元的基本理论,利用自行开发的优化设计程序,首次同时对锻件变形均匀性和锻件变形力进行了多目标优化设计,优化目标是在提高锻件变形均匀性的同时降低锻件的变形力。
The main factors causing uneven deformation include initial water storage,rapid drawdown,material differences in the dam area,the deep overburden of the riverbed,rapid construction,and water force.
分析大坝变形成因,认为时效是引起大坝变形的主要因素;而引起大坝不均匀变形的主要因素包括水库初次蓄水、水位骤降、坝体分区材料差异、河床深覆盖层、施工速率快和库水作用力等。
Research on Controled and Used of the Non-uniform Deformation in Forging Process
锻压成形过程不均匀变形控制与利用研究
Analysis on the Differential Defomation of Embankment Filled by Expansive Soils under Rainfall Condition;
降雨条件下膨胀土路堤不均匀变形分析
Analysis of asymmetrical deformation of upper structure due to excavation of underside tunnel
地铁交汇站施工上部结构不均匀变形分析
It is important to recall that a sound wave in a nonhomogeneously deformed material cannot be a plane wave.
重要的是要记得，非均匀变形材料中的声波不可能是平面波。
Inhomogeneity of Equal Channel Angular Extrusion of AZ91D and Its Influence on Spherocrystalization of Semi-Solid Microstructure
镁合金等通道角挤压不均匀变形及对半固态球晶化的影响
Study on appearance evenness and mass evenness of textured yarn
变形纱表观条干均匀度和质量条干均匀度研究
The shearing strain is essentially inhomogeneous flow of metal.
剪切变形的实质是金属的不均匀流动。
Relationship between texture parameters and evenness of textured yarns
变形纱条干均匀度与变形工艺参数的关系
Mechanics Analysis of Casing Deformation Under Non-uniform In-situ Stress and Its Repair
非均匀地应力下套管变形和整形复位分析
The initial stress or deformation fields are not usually homogeneous.
初始胁强场或初始形变场通常并不是均匀的。
Settlement and Stress Analysis of Stilling Basin on Non-homogeneous Foundation;
不均匀地基上消力池的变形与应力分析
Research on Theory and Application of Homogenization of Composite Materials under Large Deformation
大变形条件下复合材料的均匀化理论及应用
The Effect of Homogenization on Deformation Behavior of Mg-9Gd-3Y Alloy
均匀化对Mg-9Gd-3Y镁合金热压缩变形的影响
Influence of Process Routes on Strain Homogeneity During Equal Channel Angular Pressing
工艺路线对等径角挤压变形均匀性的影响
Experimental Study on Deformation Uniformity in Thickness Direction of 2205 Duplex Stainless Steel during Hot Rolling
2205双相不锈钢热轧厚向变形均匀性的实验研究
Effect of homogenization annealing process on heat deformation behavior of ZM21 magnesium alloy
均匀化退火工艺对ZM21镁合金热变形行为的影响
NONEQUISPACED FAST FOURIER TRANSFORM ON PARALLEL HEXAGON
平行六边形区域非均匀节点快速傅立叶变换
EXPERIMENTAL STUDY ON BOND PROPERTIES OF NON-UNIFORMLY CORRODED DEFORMED BAR IN CONCRETE
非均匀锈蚀变形钢筋粘结性能试验研究