Optimization of process parameters in stretch forming of aircraft complex skin 飞机复杂蒙皮拉形工艺参数优化设计
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。
Equivalent FE model for sheet stretch forming over reconfigurable compliant tooling 可重构柔性模具蒙皮拉形有限元等效模型
Numerical Analysis on the Local Stress and Local Deformation in Multi-point Stretch Forming 多点拉形中局部应力与局部变形的数值分析
Structural feature mapping in blank design of integral panel with high flanges and grid ribs Analysis of radial displacement during forming process of Stretch Forming Latticed Structure 网格式高筋条整体壁板毛坯展开中结构特征映射方法研究与应用张拉成形网格结构成形过程径向位移分析
In order to implement the Internal stretch forming space lattice structure ( ISFSL) into practice, structure composing of ISFSL is fully presented. 针对体内张拉成形空间网格结构实际工程应用的需要,介绍了体内张拉成形空间网格结构的组成。
FEM simulation and parameter optimization on stretch forming for semi-spherical heads 半球形封头拉伸成形工艺的有限元模拟及参数优化
The availability of the method was proved by the experiment of an axisymmetric stretch forming process. 采用轴对称拉深成形实验,证明这种方法是正确的。
According to the principle that the volume of work piece is invariable during die forging, combining the roughcast pre forming and heat stretch forming process, the steel half spherical shell with double flange ( equator and waist flange) can be forged. 按照模锻体积不变原理,锻造预成形毛坯与热拉伸成形工艺相结合的方法,压制出带双法兰(赤道法兰和腰法兰)的钢半球壳。
Damage, Instability and Construction of Forming Limit Curve in Sheet Metal Stretch Forming 板材拉伸成形中损伤、失稳与成形极限曲线的建立
Optimization of loading trajectory in skin stretch forming process 蒙皮拉形加载轨迹优化
On the stability of metal plate stretch forming 板金属拉伸成形的稳定性问题
Key technology research and application development on post-processing of skin stretch forming simulation system 基于蒙皮拉形模拟系统的后处理技术及开发
Application research& development of the generation system of die surface for skin stretch forming over reconfigurable tooling 蒙皮拉形可重构柔性模具模面生成系统开发及应用研究
Slip band is one of the main causes for faulty parts in stretch forming of airplane mirror skins. 滑移带是导致飞机镜面蒙皮报废的主要原因之一。
Optimization of Multipoint Blank Holder Pressure for Sheet Metal Stretch Forming 板料拉伸成形多点压边力优化
To study the deformation behavior of skin parts during the process of stretch-forming, a1MN 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。
Optimization System Interface Technology in Skin Stretch Forming Process 蒙皮拉形工艺优化系统接口技术
Deform-3D plastic molding simulation software was adopted to numerically simulate the course of stretch forming and forging reduction forming, finding that the process was feasible and capable of greatly decreasing the energy consumption and improving the production performance. 并用塑性成形模拟软件Deform3D对拉伸成形和镦粗成形进行了数值模拟,证明了该工艺的可行性。该成形工艺可极大地降低能耗,提高生产效益。
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。
Application of strain analysis in the stretch forming of metal sheet 应变分析方法在金属薄板拉深成形中的应用
Process parameters in stretch forming of mirror skins 镜面蒙皮拉形工艺参数研究
Analysis on No notch Continuous Stretch Forming and Key Points for Mold Design 无切口连续拉深成形工艺分析及模具设计要点
Computer aided engineering system for aircraft stretch forming 飞机蒙皮拉形计算机辅助工程系统ASSFCAE
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。
Stretch forming technology is mainly used in manufacturing of aircrafts skin and due to its low material utilization and relatively high cost, application of stretch forming technology is limited in other industry field. 目前,拉形工艺主要用于生产飞机蒙皮件,由于其材料利用率很低,生产成本相对较高,制约了它在其他工业领域中的应用。
With the hydraulic drive, the multiple grippers can work in a self-coordination mode, instead of the mode that gripper moving as a whole in traditional stretch forming process. 板材离散夹钳柔性拉形是一种新型的拉形技术,通过全液压驱动技术来实现多个夹钳的柔性自协调工作,取代了传统拉形工艺中夹钳的整体运动模式。
The Arrhenius model, differential viscoelastic model-PPT model and flow-induced crystallization model are applied to describe the spinning melt extrusion stretch forming, which makes the melt spinning model more accurate and more practical. 论文详细分析了熔体挤出成形过程,把温度依赖粘度变化的Arrhenius模型、微分粘弹性PPT模型和流动诱导结晶模型应用于描述纺丝熔体挤出拉伸成型,使得熔体纺丝模型更符合实际。
The monitoring system has already been applied in the stretch forming test of FAST 30m model. 其中,监测系统已在FAST30m模型张拉成形试验中得到应用。
Mechanics analysis of flexible stretch forming process was done by using analytical method with derived equations for computing the stress, strain, tensile force and thickness reduction in stretching process. 采用解析法对板材柔性拉形过程进行了力学分析,推导出板材柔性拉形过程中应力、应变、厚度减薄和拉力的计算公式。