尺寸 (長短大小) measurement; dimensions; size; magnitude; measure; admeasurement; bigness; fitting 衣服尺寸 measurements of a garment; 加工尺寸 finish size; 量尺寸 take sb.'s measurements; (鞋、帽、衣等)現(xiàn)貨尺寸 stock size; 按尺寸大小分開 separate for size; 試試尺寸大小 for size; 我想請您給我量一下我的胸圍尺寸。 i want you to take my chest measurement
In the shaping level , the connection between the shaping dimensions and topological structures of basic entities is set up ; in the locating level , the influence of geometric elements and engineering structures on locating dimensions is expressed 在定形功能語義層中,建立了定形尺寸同基元體拓撲結構之間的聯(lián)系;在定位功能語義層中,揭示了基元體幾何元素和實際工程結構對定位尺寸的影響。
The notion of explicitly geometric shape feature position of primitive is introduced , and the classification of explicitly geometric shape feature position is studied carefully . secondly , taken the combining principle of combined entity as the basis , the notion of explicitly geometric shape feature position constraint of combined entity is introduced . the classification - the explicitly reductive capacity to location dimension , constraint degree , dividing constraint level of explicitly geometric shape feature position constraint are systematically studied 其次,對組合體的組合機理進行了分析,并在此基礎上,引入了組合體的隱式幾何形狀特征位的概念,系統(tǒng)的討論了組合體的隱式幾何形狀特征位約束的分類、組合體的隱式幾何形狀特征位約束對定位尺寸隱含性縮減的性質(zhì)、組合體的隱式幾何形狀特征位約束的約束度、隱式幾何形狀特征位約束的優(yōu)先級別劃分。
In this paper , based on analyzing the forming regularity , geometric characteristic and dimensioning factor of primitive and combined entity , the notion of explicitly feature position of geometric shape of primitive is introduced , the classification is dicussed . the notion of explicitly feature position constraint of geometric shape of combined entity is introduced . the classification , the explicitly reductive property for location dimension , the constraint of the explicitly feature position constraint of geometric shape of combined entity degree are systematically analyzed 本文通過對基元體和組合體的形成規(guī)律、幾何特性及尺寸要素分析的基礎上,引入了基元體和組合體的隱式幾何形狀特征位的概念,系統(tǒng)地分析了隱式幾何形狀特征位約束的分類、及其約束度等概念;提出了定位尺寸預先加入的策略及隱式幾何形狀特征位約束對定位尺寸的隱含性縮減的性能,并建立了求解組合體的尺寸約束解的推理求解公式;通過引入基元體的隱式幾何形狀特征位和組合體的隱式幾何形狀特征位約束等概念,把尺寸約束解的求解轉(zhuǎn)化為對基元體的隱式幾何形狀特征位相互之間的位置關系。
In the following , based on that theories analysis and the 3d space of primitive and combined entity is existed , a new strategy appending the location dimension beforehand is applied , and the formula to solving the constraint dimensions is established . the algorithms to testing the feature position constraint among the primitive are brought forward 進而,在以上理論分析和三維形體所處的空間基礎上,提出了定位尺寸預先虛擬加入的策略,給出求組合體尺寸約束解的推理求解公式,通過此公式西安建筑科技大學碩士論文可求解出組合體的尺寸約束解。
In chapter 3 , by identifying of geometric features of all basic entities , the shaping information of all basic entities of a part is recognized , and the carrier information for constructing dimension model is extracted . according to interrelations of all basic entities , and connections between shaping dimensions and topological structures of basic entities , a new method is presented to identify disappearing dimensions caused by interacting features . at the same time , a new strategy to create locating constraint dimensions and convert locating constraint dimensions to locating dimensions is introduced 在第三章中,通過基元體的幾何特征識別出零件體中各個基元體的幾何形狀,并提取生成尺寸模型所需的載體信息;根據(jù)定形尺寸同基元體拓撲結構之間的聯(lián)系和各基元體之間的相互關系,提出了由相交特征引起的消失尺寸的確定方法;介紹了基元體之間定位約束尺寸的生成方法,以及山定位約束尺寸轉(zhuǎn)化成定位尺寸的調(diào)整策略。