查询词典 simulation

Aiming at the great calculating amount in simulation to ocean wave, advance a real-time protracting eyeable trapezium to keep the real-time simulation and vivid vision effect.

同时针对海浪仿真中计算量大的问题，又提出了一种实时绘制可见梯形范围技术解决海浪仿真中数据量大的问题，确保仿真实时和逼真的视觉效果。

This chapter is separated into two parts. The first part introduces the encode and decode scheme which applies the TCQ in DCT field, then corresponding implement algorithm and its simulation are given. The latter part excludes the operation that quantizes only one pixel every time, and adopts the VQ method, then brings forward the TCVQ algorithm in DCT field. Finally corresponding implementation algorithms along with its simulation results are given.

本章分成两部分第一部分详细介绍了运用DCT域TCQ方法进行编码、解码的方案，并提出具体实现算法和进行了仿真计算；第二部分在DCT域TCQ基础上，摈弃在DCT域单个量化的做法，采用矢量量化的方法，提出了DCT域TCVQ的实现算法，同时也进行了仿真。

The speech semaphore analogs wave form and delivers a speech through IP method and ignore to is a real time appliance a traffic still a non- real time applied traffic, the pass looks shore wants to steer a simulation data convert to the speech semaphore first, is also vs simulation the speech semaphore steer 8 or 6 quantizes, then send go into to buffer store ward amid, the dimension of dampener can be sur the request select of the delay and the encode.

语音信号是模拟波形，通过IP方式来传输语音，不管是实时应用业务还是非实时应用业务，道貌岸首先要对语音信号进行模拟数据转换，也就是对模拟语音信号进行8位或6位的量化，然后送入到缓冲存储区中，缓冲器的大小可以根据延迟和编码的要求选择。

By studying the numerical simulation technology of sheet metal formation in recent decades,the article puts forward a method for redeveloping friction model of numerical simulation of sheet metal formation on the basis of ABAQUS.

对近年来兴起的板料成形过程数值模拟新技术研究，提出了一种基于ABAQUS的板料成形数值模拟摩擦模型的二次开发及实现的方法。

The design of production logistics simulation system of reheating furnaces is introduced and the analyse of simulation results.

研究连续步进式加热炉炉群生产仿真系统的设计，着重分析仿真结果，得出了在热送热装条件下生产计划和加热炉生产的若干特点和规律。

After considering specialties of modern avion simulation training, this thesis discusses requisitions of the modern avion simulation system.

从现代军机飞行仿真训练的特点出发，分析了现代军机仿真系统的要求，以实例论述了现代军机仿真系统的系统构成和软件划分，并论述了主要模块的功能及技术特点。

3D-CTM (Coupled Thermo-Mechanical Forming Simulation) software for precision forging process of aero-engine blade was developed. The key technologies of 3D coupled rigid-viscoplastic thermo-mechanical FEM simulation of blade forging process were studied systematically. By using the remeshing method of contracting from the boundary to the inner, new mesh system from old distorted mesh system can be obtained. A method of modifying the position of nodes touching on the die according to its original normal was proposed to avoid "dead lock" problem due to uncontinuity of normal of scatted die meshes. The pseudo-static iterative algorithm was used to simplify the coupled thermo-mechanical computation. In particular, formulations to determine relaxation factor β was established for rigid viscoplastic FEM adopting penalty function method, and an improved cubic factor rapid algorithm derived from these formulations was proposed by combining with the advantage of advance and retreat search method.

采用基于边界构形的内缩法，实现了三维畸变网格的重新划分；提出了初矢修正法对触模节点的位置进行修正，解决了由于离散的模具网格的法矢不连续造成的&死锁&问题；采用准静态迭代法简化了速度场和温度场耦合计算过程；特别是针对减速因子β的选取，建立了适用于三维复杂成形过程刚粘塑性罚函数法有限元三次因子法的计算公式，并结合进退搜索法提出了改进的三次因子快速算法，提高了模拟计算效率和稳定性，在此基础之上，开发了面向叶片精锻过程的三维刚粘塑性热力耦合有限元模拟分析系统(3D-CTM)，系统的可靠性得到了圆柱体镦粗的验证。

The method of CFD numerical simulation is employed to replace experimental investigation. Hence, STAR-CD of the commercial software is used to simulate the outer flow field and heat transfer performance of integrated heat sink with heat pipes cooled by airflow. It is found that simulated results agree with experimental results well, which indicates that simulation method is reasonable and reliable. Further, simulated computations for different fin thickness, fin pitches and air velocities are performed to analyze their effects on heat transfer performance of heat sink. Finally, a new optimized structure of integrated heat sink with heat pipes is provided to meet future demands for cooling CPU and its heat transfer is also evaluated. For multi-heat source and higher dissipation power of electronic devices, the integrated heat sink with heat pipes attatched fins stagged in different positions of channels is presented and its flow and temperature fields are also simulated to enhance heat transfer. As a conclusion, all mentioned above are useful for the design of heat sink with excellent efficiency of heat dissipation and further research.

应用商业软件Star-CD对CPU集成热管散热器的外部流场和传热特性进行了数值模拟，将数值模拟结果和试验结果对比，验证了所提出的数值计算方法是可靠和可行的；利用此数值模拟方法对CPU集成热管散热器在不同散热翅片间距、厚度和气流速度下散热器的流动与传热性能进行了数值计算，分析了这些参数的变化对散热器传热性能的影响；针对未来CPU冷却的要求，确定了与最优气体流速匹配的最佳翅片间距、厚度的CPU集成热管散热器的新结构；利用试验评测了根据数值模拟提供的新结构开发出的新CPU集成热管散热器的传热性能；最后在场协同强化传热的理论的基础上，对CPU集成热管散热器的散热翅片错位排列来强化散热器的散热，满足未来大功率、多热源的电子元件的散热，为今后进一步优化散热器提供了依据。

The methods to solve the harmonic superposing problem and their shortcomings are discussed. An electromagnetic transient simulation model is proposed to analyze multi-harmonic superposition and simulation experiment is made in this article.

文章系统地比较了当前多谐波源叠加方法的缺陷和局限性，并给出了运用数字仿真技术来进行多谐波源网络的谐波分析方法，进行了仿真实验。

The porous media model of software FLUENT was introduced to simulate the 2D flow through permeable tetrahedrons,and an experiment was conducted to verify the simulation;With the simulation,the influence of parameters such as Re、relative width b/B and relative length l/B on the protected length downstream of permeable tetrahedrons was studied.

本文首次尝试利用Fluent软件的介质模型对经过四面体透水框架群的水流进行了平面二维数值模拟，通过模型验证，多孔介质模型能较好地用于四面体透水框架群模拟；另外，通过数值计算，研究了Re、相对宽度b/B、相对长度l/B对四面体透水框架群下游保护长度的影响。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。