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。
There are implicit integration and explicit integration methods to solve the finite element formulations for plate forming simulation.
用于板材成形模拟的有限元方程的求解方法主要有隐式积分和显式积分两种。
The thesis establishes a pre-bending forming simulation model to study the influence of pre-bending process on the continuous forming.
为研究预弯工艺对后续成形的影响，本文建立了预弯成形模拟模型；
By simplifying the geometry model of the copper bus bar continuous extrusion process, based on a new metal forming simulation package, MSC.
对铜母线连续挤压过程的几何模型进行简化，基于MSC。
The error of data mapping from forming simulation results to crashworthiness simulation model depends on mesh size. The bigger the mesh size is, the bigger the error.
从冲压成型结果向碰撞仿真模型映射数据的误差依赖于碰撞模型网格尺寸，尺寸越大映射过程产生的误差也越大。
The application fields, basic principle and FEM of one step forming simulation software and its advantages compared with incremental method simulation have been introduced.
介绍了一步成形法模拟软件的应用领域、基本原理和方法以及同增量法模拟比较的优点。
Having the pre-bending forming simulation for tube material aim at the control bending condition of CNC bending machine, analysis the forming disfigurement and its' forming mechanism.
针对数控折弯机折弯工况，进行管材预弯成形模拟，分析成形缺陷及其产生机理。
The theory and features of the dynamic explicit finite element methods are discussed, the available various commercial FEM codes used for sheet metal forming simulation are introduced.
介绍了动态显式有限元法的原理和特点，总结讨论了国际现有各种商用有限元软件的情况。
The core theory of sheet metal forming simulation software CADEM is introduced. Taking the development of drawing die for front fender as an example, the role of CAE technology is emphasized.
介绍了板料成型CAE软件CADEM主要理论，并以汽车外覆盖件翼子板的拉延模具开发为例，阐明了CAE技术在模具开发中所起的重要作用。
Then, simply introduce the finite element theory foundation of computer simulation technology, analyse and sum up the application trait and function of the sheet forming simulation software-DYNAFORM.
其次，简要介绍了计算机仿真技术所依赖的有限元理论基础，并对板料成形专用有限元模拟仿真软件dynaform的应用特点及功能做了总结和分析。
Therefore, it is significant to study the forming process of design knowledge and put it in computer simulation.
因此，研究设计知识的形成过程并实现计算机模拟，具有重大的意义。
In the general framework of system, this paper USES forming process choosing and process simulation to make out the evaluation content.
在系统的总体框架中，分别采用成型工艺方法选择和成型工艺过程模拟的方法来实现评价内容。
One of the key technique problems is boundary dynamic contact constraint and contact judgment in FEA simulation for 3d complicated massive forming.
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。
Analysis the key technique of continuous simulation for incremental sheet forming.
分析了板材渐进成形连续模拟关键技术。
The sheet metal layered forming process is a multi-stage forming process, the paper introduce FEM simulation project of sheet metal layered forming process.
根据金属板材分层渐进成形为多工步成形的技术特点，提出了金属板材分层渐进成形的有限元模拟方案。
Through the research of the simulation method of pipe bend forming in pipe-bender, it have important purpose for design and development of new products of pipe forming.
通过对管材弯曲成形过程的数值模拟方法的研究，对管材成型产品的设计和新产品的开发具有重要的意义。
Using numerical simulation method, the forming process of joint tray was simulated, and its tradition technology was optimized.
运用数值模拟方法对连接盘的成形过程进行模拟，对其传统工艺进行优化。
To accurately predict the forming limit in aluminum alloy sheet forming, ductile fracture criterion is introduced into numerical simulation.
为了准确地预测铝合金板材成形极限，将韧性断裂准则引入到数值模拟中。
In numerical simulation minimum thickness was taken as forming limit criterion. The research on the relation between minimum thickness and strain paths was carried out.
在数值模拟中应用最小厚度作为成形极限判据，研究最小厚度值与应变路径的关系。
The porthole cover forming technology has been analysed and theoretical calculation and simulation verification have been done hence scheme of forming technology and die design done.
分析了装货口盖成形工艺性，并进行了理论计算和模拟验证，由此制定了该工件的成形工艺、模具设计方案。
A new method for the treatment of constraints in finite element simulation of metal forming is put forward.
此文提出了适用于金属体积成形过程有限元模拟的约束处理算法。
The simulation of roll forming with multiple passes was studied by FEM software ABAQUS.
利用ABAQUS软件对多道次辊弯成形数值模拟技术进行了研究。
Based on the analytic results of the numerical simulation, the forming process and the mould structure for the spur-gear open-die forging were designed properly.
在数值模拟分析结果的基础上，对直齿轮的开放式成形工艺和模具结构进行了合理设计。
In this thesis, the finite element simulation technology of automobile panel stamping forming is researched, and an automobile front fender stamping forming is simulated.
本文对汽车覆盖件冲压成形有限元数值仿真技术进行了研究，并对某型轿车前翼子板进行了冲压成形仿真。
In this paper, two numerical simulation methods of sheet metal forming, incremental approach and inverse approach are discussed.
探讨了板料成形中两种数值模拟方法：增量方法和反向方法。
The paper studies the parameters affecting the forming of sheet with punching hole by simulation software and orthogonal experiment, and concludes the law of the parameters affecting the forming.
利用模拟软件，运用正交试验法对影响预冲工艺孔板料成形性能的参数进行研究，得出各参数对该情况下成形性能影响程度的规律。
Preform design is one of the key steps in precise plastic forming, and backward simulation technology plays important role in preform design.
预成形毛坯设计是精密塑性成形工艺的核心环节，而反向模拟技术可以实现预成形设计的高效化、数字化和智能化。
The hot die forming and key technology of hydro-turbine blade have been introduced with discussion about the numerical simulation application in hydro-turbine blade hot die forming.
介绍了水轮机叶片热模压成形及其关键技术，并探讨了数值模拟技术在水轮机叶片热模压成形中的应用。
The paper firstly summarizes some things about cold-roll forming and its simulation in our country and international, introduces the work's background and significance.
本文首先对国内外冷弯成型领域及其数值模拟领域的工作进展情况进行了概括和总结，阐述了本文立题的背景和意义。
The paper firstly summarizes some things about cold-roll forming and its simulation in our country and international, introduces the work's background and significance.
本文首先对国内外冷弯成型领域及其数值模拟领域的工作进展情况进行了概括和总结，阐述了本文立题的背景和意义。
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