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ASME Y14.47-2019 pdf download

ASME Y14.47-2019 pdf download.Model Organization Practices.
This Standardoutlines modelorganizationschemapractices to supportmodel-baseddefinition(MBD). This provides a set of requirements and guidelines for the computer-aided design (CAD) user. It is intended to be the foundation for design development efforts in an MBE. Previously,3Dmodelshadanaccompanyingdrawinggraphicsheet.WithcurrentadvancesinCADcapabilities,product definition previously shown on a drawing graphic sheet may be defined and displayed directly in the MBD. This is accomplished by utilizing a combination of annotations and naming conventions to organize the 3D model. This makes the 3D model a master source for obtaining product definition data and eliminates the need for a drawing graphic sheet. The organization practices defined bythis Standard are necessaryto establish a common method to facilitate access to the MBD data in the data set. While the focus ofthis Standard is initially on mechanical items, the intent is to provide a foundation for use in any discipline. The schema are compliant with an annotated model defined in ASME Y14.41. 1.3 ASME Y14 Series Conventions The conventions in paras. 1.3.1 through 1.3.10 are guidance used in this and other ASME Y14 standards. 1.3.1 Mandatory, Nonmandatory, Guidance, and Optional Words (a) The word “shall” establishes a mandatory requirement. (b) The word “will” establishes an intended, mandatory requirement. (c) The word “should” establishes a recommended practice. (d) The word “may” establishes an allowed practice. (e) The words “typical,” “example,” and “forreference,” and the Latin abbreviation “e.g.,” indicate suggestions given for guidance only. (f) The word “or” used in conjunction with a requirement or a recommended practice indicates that there are two or more options for complying with the stated requirement or practice. (g) The phrase “unless otherwise specified” (UOS) shall be used to indicate a defaultrequirement. This phrase is used when the default is a generally applied requirement, and an exception may be provided by ano Notes. Notes in this Standard in all uppercase letters are intended to reflect actual product definition entries.
Astatementrequiringtheadditionofanotewiththequalifier“suchas” is a requirement to add a note, and the content of the text is allowed to vary to suit the application. 1.3.6 Acronyms and Abbreviations. Acronyms and abbreviations are spelled out the first time used in this Standard followed by the acronym or abbreviation in parentheses. The acronym is used thereafter throughout the text. 1.3.7 Units. The International System of Units (SI) is featured in this Standard. It should be understood that U.S. Customary units could equally be used without prejudice to the principles established. 1.3.8 Figures. The figures in this Standard are intended only as illustrations to aid the user in understanding the practices described in the text. In some cases, figures showa level ofdetail as needed foremphasis. In othercases, figures are incomplete by intent so as to illustrate a concept or facet thereof. The absence of figure(s) has no bearing on the applicability ofthe stated requirements or practice. To comply with the requirements ofthis Standard, actual data sets shall meetthe contentrequirements setforth in the text. Geometry State geometry state: the condition of the geometry as represented in a model. 3.9 Maturity State maturity state: the condition of the design maturity for the data set’s intended use within the product life cycle. 3.10 Model-Based Definition (MBD) model-baseddefinition (MBD): an annotated model and its associated data elements that define the product in a manner that can be used effectively without a drawing graphic sheet. 3.11 Model-Based Enterprise (MBE) model-basedenterprise (MBE): an organization thatuses model-based definitions for the purpose ofcommission, opera- tion, service, and decommission of a product. 3.12 Model Geometry model geometry: geometric elements in product definition data that represent an item (ASME Y14.41). 3.13 Notes notes: textual information that further delineates the requirements of the item represented (ASME Y14.100). 3.14 Organizational Element organizational element: a nongeometric model element selected for organization by a standardized method. 3.15 Presentation presentation: the manner in which information is displayed for use by a human. 3.16 Presentation State presentation state: a retrievable collection or set of model display elements arranged for formal display to the viewer. 3.17 Representation representation: the manner in which information is stored for interpretation by a machine.

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