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。
Computer Simulation is an advanced technique in the fields of design and test, and also an important way to test and evaluate the effectiveness of dynamic and intricate system.
计算机仿真是现代设计与试验领域不可或缺的先进技术，同时也是动态、复杂系统设计与评估的重要手段。
By utilizing modal synthesis technique and theory of elastic mechanics, the formation mechanism and simulation method of vehicle body dynamic stress caused by road unevenness are studied.
运用模态综合技术和弹性力学理论，研究了由路面不平度引起的车身动应力的形成机理及其仿真计算方法。
On the basis of analysis on augmentation approach widely used in the multibody dynamic simulation, an improved algorithm based on sparse matrix technique was proposed.
在分析多体动力学仿真计算中广泛使用的增广法基础上，提出了一种基于稀疏矩阵技术的改进算法。
With the help of the dynamic and static data bases and numerical simulation technique, the paper provides the method of determining the oil well's fracture potential in oilfields.
本文提出了一种依据油田动、静态数据库资料，并借助于数值模拟技术进行油田老井压裂潜力确定的方法。
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.
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 hardware in the loop real time simulation technique is applied to study on the optimization of dynamic characteristics of electronic control system of diesel engines.
应用硬件在环实时仿真技术进行了柴油机电控系统动态特性匹配的研究。
This paper discussed the basic technique of setting security key and produced group security key to anti-copy and dynamic reading security key to anti digital simulation.
对软件加密解密基本技术和方法分析的基础上 ，提出组合加密防拷贝 ，动态密钥读取防仿真两种方法。
This paper discussed the basic technique of setting security key and produced group security key to anti-copy and dynamic reading security key to anti digital simulation.
对软件加密解密基本技术和方法分析的基础上 ，提出组合加密防拷贝 ，动态密钥读取防仿真两种方法。
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