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題名 | Development of a Step-Based Dimensioning and Tolerancing Data Model=以STEP為基礎之尺寸與公差資訊模型之發展 |
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作者 | 蔡志成; 莊燦肇; 郭德寧; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷期 | 22:6 1998.11[民87.11] |
頁次 | 頁831-840 |
分類號 | 446.8401 |
關鍵詞 | STEP產品; 尺寸; 公差資訊模型; STEP; Product model; Dimensioning and tolerancing; Data model; ISO 10303; |
語文 | 英文(English) |
中文摘要 | STEP 產品模型為國際標準組織為因應工業自動化需要完整的產品資料所發展的國 際標準,該標準包含工作標準與資訊模型。而隨著產品精度要求日益增高,尺寸與公差資訊 在產品生命週期中也扮演了重要的角色,因此發展以 STEP 為基礎之尺寸與公差的資訊模型 亦刻不容緩。本文探討建構一以 STEP 產品模型為基礎之尺寸與公差模式所需之資訊,並描 述如何發展與建構單一零件之設計尺寸與公差規格與其公差網路,並透過界面進行公差分析 ,以及一組件之尺寸、公差與配合規格之建構與應用。 |
英文摘要 | STEP (STandard for the Exchange of Product model data) is an effort by the International Organization for Standardization (ISO) to develop an international standard for product modeling required for industrial automation. The product model involves both generic working standards and information models. As product accuracy becomes tighter, dimensioning and tolerancing (D&T) information also plays an important role in the product lifecycle. It is, therefore, important to develop a D&T data model based on STEP. This paper investigates the information required to build a STEP-based D&T schema and describes the development and implementation of such a D&T data model. It is found that the ISO draft model is not capable of representing the mating relationship between parts; hence, additional entities to model this relationship are suggested. Construction of a product D&T specifications based on the developed model is then described. Two examples, including a single part with an interface for constructing the corresponding tolerance network and an assembled product with D&T and mating specifications, are given to illustrate how the developed data model can be used in engineering practice. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。