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发表于 2007-12-17 20:46:09
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来自： 中国上海
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简单补充一下。3 f' [9 X+ h/ w. s
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STEP, the Standard for the Exchange of Product Model Data, is a comprehensive ISO standard (ISO 10303) that describes how to represent and exchange digital product information.
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ISO 10303 is an ISO standard for the computer-interpretable representation and exchange of industrial product data. Its official title is Industrial automation systems and integration - Product data representation and exchange, and it is also known as STEP or the Standard for the Exchange of Product model data. The standard's objective is to provide a mechanism that is capable of describing product data throughout the life cycle of a product, independent from any particular system. The nature of this description makes it suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases and archiving.
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以上两段，就不翻了，应该都看得懂。简单说，这两个标准都是来自iso 10303，就是当初为了不同CAD（CAE，CNC）系统之间数据交换制定的，所以，他的目标是产品的整个life cycle，大概就是PDM那套。当初肯定是非常先进的，现在嘛，有点难说。+ a$ V W% D" f: a) ?
4 z, n$ \ {% L0 C1 M8 U至于两者的区别，也很好解释。9 G& `6 h7 U. t$ g8 C' t
Part 203: Configuration controlled design. Mainly used for 3D design and product .
5 Q1 w1 Z. K7 R1 h/ `# }( p1 ]Part 214 - Core data for automotive mechanical design processes + M7 h! ]: l- H# `
AP203是给通用机械做的，AP214是给汽车行业做的。
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3 y! I! s& j$ \' E2 j" K实际上两者区别不是很大，AP-203 and AP-214 use the same definitions for three dimensional geometry, assembly data and basic product information. e& V- B1 ~6 r& b+ C! }; C& M
只是据说美国人用203的多，欧洲人用214的多。但203用的应该更广一些。. N8 e7 G) q8 `+ [4 X. j) v
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平时使用没发现什么区别，就是214好像文件会更小。 |
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发表于 2007-9-15 14:31:30
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