基于这种机理，应用微观接触力学和磨粒粒度分布理论建立了一种新的表征CMP过程材料去除速率的数学模型。
Based on this mechanism, a new mathematical model characterizing the material removal rate in CMP process was developed by using micro-contact mechanics and particle size distribution theory.
利用齿坯实体模型和刀具实体模型做布尔减运算，来实现模拟工件材料的去除过程；
The cutting process was performed through subtraction boolean operation of the solid model of workpiece and cutter.
本文同时建立了材料去除形素体积模型的推理和评价系统并提出了从模型中识别材料去除形素体积的算法。
The dissertation also constructs the inference and evaluation system of the model of material removal volumes. The recognition algorithm of material removal volumes is advanced.
在反转法的原理上，建立了硅片自旋转磨削材料去除率的理论模型，推导了材料去除率公式，分析了磨削工艺参数与材料去除率的关系。
By the principle of reversal process, the formula of material removal rate (MRR) in wafer rotation grinding process is deduced. The relationship between MRR and the grinding parameters is given.
利用ABAQUS提供的用户材料子程序UMAT的二次开发平台开发土石料的沈珠江双屈服面模型，并以一面板堆石坝为例，结合ABAQUS的“单元增加/去除”技术进行了坝体施工和水库蓄水的仿真分析。
The user material subroutine UMAT provided by the general software ABAQUS was used for programming for Shenzhujiang s double-yield surface model of earth rockfill materials.
开发了虚拟数控加工过程仿真模型，此模型可实时、交互地显示毛坯的材料去除过程和切屑的生成、卷曲及折断过程。
The simulation models of machining processes are developed in virtual numerical control, the models can demonstrate real-time and interactively the material removal processes of blank an...
开发了虚拟数控加工过程仿真模型，此模型可实时、交互地显示毛坯的材料去除过程和切屑的生成、卷曲及折断过程。
The simulation models of machining processes are developed in virtual numerical control, the models can demonstrate real-time and interactively the material removal processes of blank an...
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