Enhancement of numerical simulation efficiency of solidification process of casting 一種提高鑄件凝固過程數(shù)值計算效率的方法
3 . a method of multiple objective optimization based machine equipment optimization allocation is presented, which realizes machine equipment optimization allocation plan's automatic search and increases simulation efficiency of complex system 3.提出了基于多目標優(yōu)化的施工機械設(shè)備優(yōu)化配置方法,實現(xiàn)了施工機械設(shè)備配置的自動尋優(yōu),提高了復(fù)雜系統(tǒng)的仿真效率。
A simulation model using the 0-1 distribution as the bias probability distribution for both error detection and correction is put forward . the problem of optimum bias probability is solved in theoretical respect . the simulation efficiency at optimum bias probability is derived 本文提出了一個同時糾檢錯系統(tǒng)的仿真模型,并采用二項分布作為偏詈概率分布,從理論上解決了最佳偏詈概率分布問題,導(dǎo)出了最佳仿真效率的解析公式。
Considering the huge data and long simulating time, this dissertation employed the distributed simulation high level architecture, thus reduced the simulating time and improved the simulation efficiency through real time range compression and parallel azimuth compression carried out on two computers 針對星載sar數(shù)據(jù)量大,仿真時間長。本文采用基于hla的分布式設(shè)計,通過采用距離壓縮實時處理和方位壓縮由兩臺計算機同時處理的方法減少仿真時間,提高了仿真效率。
In the second place, based on the asu of buggenum igcc plant in netherlands, both static and dynamical model for distillation tower of the asu are created and some valuable conclusions are gained as well . finally, a compartmental simplified model is created for distillation tower of the asu, in order to reduce the simulation time and increase the simulation efficiency . the new model will be helpful to the further simulation and on-line optimal control for the asu of the igcc plant 其次,本文以荷蘭buggenum電站的空分系統(tǒng)為原型,基于matlab建立了空分系統(tǒng)精餾塔的半圖形化動、靜態(tài)數(shù)學(xué)模型,并通過模擬,得出了一些有價值的結(jié)論:當空分系統(tǒng)的壓力變化時,氧氣產(chǎn)品濃度的響應(yīng)時間常數(shù)為兩小時左右,說明空分系統(tǒng)是igcc電站最大延遲環(huán)節(jié);而且雖然氧氣濃度最后會穩(wěn)定在igcc電站所要求的范圍之內(nèi),但在過渡過程中會超出限制,這些都為igcc電站的安全運行及控制系統(tǒng)設(shè)計提供了有價值的信息。
The advantage of the system has been demonstrated through an example of a planar two-arm robot with flexible joints . the numerical result shows that the system works steadily and so can be used into various kinds of mechanical system . the simulation efficiency for the dynamic analysis of robot can be enhanced 文中通過一個平面兩臂柔性關(guān)節(jié)機器人的仿真實例詳細介紹了本軟件的使用,仿真結(jié)果說明本軟件系統(tǒng)運算穩(wěn)定、適應(yīng)范圍廣,能大大提高機器人動力學(xué)效率。
Simulation results show that when combine it with the compact fdtd method and the signal curvefit prediction approach, the computation magnitude is tremendously cut down compared to that when only the basic fdtd method is used . so simulation efficiency is greatly enhanced and the analyzing difficulty in dealing with multiple conductors is solved to some extend 通過與降維fdtd方法和信號擬合預(yù)測技術(shù)結(jié)合使用,極大地縮減了單純fdtd法龐大的計算量,提高了仿真效率,在一定程度上有效地解決了多導(dǎo)線分析的困難。