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This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component.For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material .distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper.For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space stateinformatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision.Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.

本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上,使用非流形几何模型作为理想材料零件几何拓扑模型的基础,并在半边数据结构基础上,针对理想材料零件的非流形特征局限内部边界上的特点,给出了一个半面数据结构来表述零件的几何拓扑信息;对于理想材料零件的材料模型,本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手,将材料信息表述为(n-1)维单纯形,然后通过对三维几何区域的单纯剖分,以插值的方式表述零件材料分布特征;在此基础上,根据功能梯度材料零件分层制造中对CAD数据处理的要求,给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法;而对于文中所定义的理想材料零件,本文将其材料信息表述分解到细观和宏观两个尺度进行,首先给出了细观尺度上参数化的周期性功能细结构概念,以此来统一表述功能梯度材料(单质材料作为特殊的功能梯度材料看待)、复合材料和功能细结构材料;把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组,以表达零件的细观材料特征;对于零件宏观的材料变化特征,则同样在几何区域单纯剖分的基础上,通过对细观尺度上周期性功能细结构控制参数的插值来完成;通过理想材料零件CAD数据处理的算例,验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。

She lives in Austin with her husband, two children, and a house rabbit named Bunny.

更糟的是,有人正威胁索菲要把她的身份公之于众。

A pet rabbit named Sugar Bunny was stolen from a preschool.

一间幼稚园所饲养的一只名叫甜心兔的宠物兔被偷了。

I eventually wrote a story about four magic animals who rode around in an old car, helping out little kids. Their leader was a large white bunny named Mr. Rabbit Trick. He got to drive the car.

不久之后,我写了一篇四只魔法动物开着旧车帮助小孩的故事,首领是一只兔子,名叫"把戏兔先生"。

Even if the Sixers already had an official bunny rabbit mascot named Hip-Hop, Ann Iverson was looked to by Philly fans just as much during the Iverson era to ignite the masses as the hoopin' hare.

即使76人已正式兔子兔吉祥物命名嘻哈,安艾弗森期待的费城球迷一样在76年代引起人民群众的hoopin '兔子。

The Bunsen burner is so named because it is thought to be invented by Robert Burnsen,who was German by birth.

本生灯的命名,人们认为是因为它是德国人罗伯特·本生发明的。

When a businessman named Ray Kroc bought a "drive-in burger bar" in San Bernardino, California, run by Richard and Maurice McDonald, he built on White Castle's practice of culinary standardisation: a McDonald's hamburger weighs 1.6 ounces (45.4 grams) and spans 3 and 5/8 inches (9.2cm); it is garnished with a quarter of an ounce of chopped onion, a teaspoon of mustard, a tablespoon of ketchup and a pickle slice one inch in diameter.

当一个叫雷·克洛克的商人买下理查德和玛瑞斯·麦当劳兄弟经营的位于加利福利亚州圣·贝纳德的"前进肉饼店"时,他模仿了白色城堡餐厅的标准化烹饪工艺:每个麦当劳的汉堡包都重1.6盎司(45.4克)、高3.4英寸(9.2厘米),并用0.25盎司的切片洋葱、一茶匙的芥末、一汤匙的番茄酱和直径为一英寸的泡菜作为佐料。

John's a very common name. There could be a burglar named John.

约翰是个很普通的名字小偷也有叫约翰的

Nutting had a famous foxhound named Burgoyne —— he pronounced it Bugine —— which my informant used to borrow.

纳丁有一只著名的猎狐犬,名叫布尔戈因,——他却把它念作布经,——告诉我这段话的人常常向他借用这条狗。

However, states burial ground or cemetery is another place. It can be named "park".

然而,国家公墓或者陵园则是另外一个地方了,我们可以称之为公园。

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推荐网络例句

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了

The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.

世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。