Stretch forming is the basic method for aircraft skin.
拉伸成形是飞机板金的基本成形方法。
Loading trajectory is the key factor for aircraft skin stretch forming.
加载轨迹是决定飞机蒙皮拉伸成形质量的关键因素。
In this paper, the pre and post process system (POPPS) for stretch forming simulation with FEM is presented.
介绍了飞机蒙皮拉形过程有限元分析软件的前后置处理系统POPPS。
The zone between the region contacted with bottom of the mould and the free forming region shows stretch forming and then transferred to plane strain state.
模底接触区与自由变形区交界处的大塑性变形区依次处于板料曲面内双向伸长变形和平面应变状态；
To study the deformation behavior of skin parts during the process of stretch-forming, a 1mn numerical control skin stretch forming testing system was developed.
为研究蒙皮零件在拉伸成形过程中的变形行为，自行研制开发了1MN数控蒙皮拉伸成形试验机系统。
The solid die can be replaced by multi-point die in the bend-stretch forming process of aluminum profiled material and these can save the cost and time of die fabrication for products.
铝合金型材的拉弯成形中，可以用多点模具代替实体模具，实现了一套模具成形多种零件的可能，节省大量的费用和时间。
The 3D elastic-plastic finite element model for the stretch forming of automobile wheel hub end housing was established, and the deep drawing process was numerically simulated by MARC software.
建立了汽车轮毂端盖拉伸成形三维弹塑性有限元模型，并利用MARC软件对其拉伸变形过程进行了数值模拟。
This causes clouds of gas, dirt and dust to be released, forming a tail of debris that can stretch for millions of miles.
这会造成瓦斯气体、灰尘和泥土的释放，形成一条延伸数百万哩的残留物尾巴。
Stretch bending has been widely applied in the manufacture of extrusions forming in the field such as aviation, aerospace, weapon and automobile.
拉弯成形工艺在航空、航天、武器装备和汽车型材弯曲件的制造中应用非常广泛。
A novel received beam forming method based on stretch processing and phase compensation in the presence of wideband signal and large scanning Angle is presented, and the realization chart is given.
提出了一种采用拉伸处理和相位补偿技术的宽带宽角接收波束形成新方法，给出了实现示意框图。
At last, the author analyzes and studies numerical simulation of stretch bending forming with lateral compression.
在论文的最后进行了有侧压拉弯成形模拟的分析与探讨。
Springback is a common phenomenon in bending process. It has been proved that stretch bending can decrease the springback effectively, which can improve the forming precision.
回弹是弯曲成形中普遍存在的现象，实践证明采用拉弯工艺可以有效地减小回弹，从而达到提高成形精度的目的。
By using finite element simulation method and plastic distortion theory, the author analyzes the principle of the stretch bending forming and builds finite element model of rotary stretch bending.
本文采用有限元模拟的方法，结合金属成形的塑性变形理论，深入分析了拉弯的成形机理，建立了用于转台式拉弯成形模拟的有限元模型。
Deformation mode is adjusted according to forming limit diagram (FLD) and maximum springback error, so the optimized one can be found, which in turn optimizes the stretch bending trajectory.
根据成形极限图和规定最大回弹超差量来调整变形模式，找到优化的变形模式和拉弯轨迹。
Using flexible interpolator pad is an important way to suppress the part surface defect in stretch-forming process on multi-point tool.
采用柔性垫层是抑制和消除多点模拉形过程中零件表面缺陷的重要措施。
Using flexible interpolator pad is an important way to suppress the part surface defect in stretch-forming process on multi-point tool.
采用柔性垫层是抑制和消除多点模拉形过程中零件表面缺陷的重要措施。
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