边界界面动态接触约束与接触判断是3维复杂体积成形有限元数值模拟的关键技术问题之一。
One of the key technique problems is boundary dynamic contact constraint and contact judgment in FEA simulation for 3d complicated massive forming.
以多点成形压力机中多轴齿轮传动调形单元为例，研究了传动系统输出响应的动态特性。
This paper analyzed the system output response dynamic characteristics of spinning gear adjustment control system of multi-point forming press.
使用基于动态显式算法的商业软件LS - DYNA建立了某汽车发动机隔热罩拉延成形的有限元模型。
A finite element model describing the drawing process of the heat-shield panel of automobile engine is established by using the commercial dynamic explicit code LS-DYNA.
金属成形数值仿真技术的关键是对模具及动态变化的锻件构形进行数学描述和网格自动生成。
The key technique in a numerical simulation of the metal forming process is the mathematic representation of dies and dynamic forging geometry as well as the generation of meshes.
通过采用影响域节点控制方法以及边界节点分布密度动态控制方法，实现了塑性成形过程的无网格伽辽金方法的自适应分析。
The influence domain control method and adaptive boundary points setting method were developed and the large metal forming meshless analyses were realized.
提出了一种以动态显式有限元为解算器，并采用遗传算法对矩形板激光弯曲成形工艺参数进行优化设计的方法。
Using explicit dynamic FEM as a solver, process parameter optimization design on laser bending of rectangular sheet metals was conducted with genetic algorithms (GA).
对塑料板材热成形过程的三维温度场进行有限元分析时采用动态内部热源的方法对潜热进行了处理。
The method of dynamic internal heat resource is adopted to deal with the latent heat during FEM analysis of 3-d temperature field of plastics thermoforming in this paper.
用ANSYS／LS-DYNA求解器动态模拟出铆钉成形过程中塑性单元的变形过程，并计算出铆钉各个单元的应力、应变。
The process of forming and changing of plastic elements is simulated by ANSYS/LS-DYNA solver, and also computes the distributing of element stresses and element strains.
优化动静特性控制，动态特性优良，焊接过程稳定，飞溅少，成形好。
Optimized control of dynamic and static characteristics, fast response, stable welding current, reduces spatter and distortion, smooth welding surface.
综述了日本在放电加工领域的最新研究动态，包括成形放电加工、微细放电加工和线切割放电加工三部分内容。
The newest trends of electrical discharge machining (EDM) including die-sinking EDM, micro EDM and wire EDM (WEDM) in Japan were presented.
目的应用经颅多普勒超声（TCD）动态观察脑保护滤网下颈动脉支架成形术中各操作阶段所产生的微栓子信号（MES）数量。
Objective Transcranial Doppler (TCD) can be used to monitor microembolic signals (MES) in different procedure phases during filter-protected carotid angioplasty and stenting(CAS).
结果：48侧A-H肾盂成形术病人术后复查肾盂明显缩小，肾功能改善，电视动态观察UPJ处蠕动良好。
Results:On post operative check the renal pelvis obviously lessened in the 48 A H pyeloplasty cases, the renal function improved, and the peristalsis at the UPJ was fine on the screen.
在本文中我们报告了视杯(视网膜原始细胞)结构在三维培养介质中的动态的、自发性的成形过程，该培养介质是由鼠胚胎干细胞聚集物组成。
Here we report the dynamic, autonomous formation of the optic cup (retinal primordium) structure from a three-dimensional culture of mouse embryonic stem cell aggregates.
分析了毛坯的应变场分布，典型节点外径、壁厚、轴向伸长量随时间的变化曲线，对整个成形工艺及变形机制有较好的动态认识。
Simulation results show strain distribution of workpiece and how outer diameter, thickness, axial elongation of some typical nodes change with time.
在等离子熔射成形中，粒子的飞行特性是影响沉积率和涂层动态生长质量的重要因素，而熔射工艺参数又是影响粒子飞行特性的直接因素。
Experimental study was carried out to investigate the influence of the main processing parameters on the quality of sprayed coatings during the plasma spray tooling process.
在等离子熔射成形中，粒子的飞行特性是影响沉积率和涂层动态生长质量的重要因素，而熔射工艺参数又是影响粒子飞行特性的直接因素。
Experimental study was carried out to investigate the influence of the main processing parameters on the quality of sprayed coatings during the plasma spray tooling process.
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