Everything about Assembly Modelling totally explained
Assembly Modelling is technology and methods used by
Computer-aided design and
Product visualization computer software systems to handle multiple files that represent components within a product. The components within an assembly are represented as
solid or
surface models.
The designer generally has access to models that others are working on concurrently. For example, several people may be designing one machine that has many parts. New parts are added to an assembly model as they're created. Each designer has access to the assembly model, while a work in progress, and while working in their own parts. The design evolution is visible to everyone involved.
The individual data files describing the 3D geometry of individual components are assembled together through a number of sub-assembly levels to create an assembly describing the whole product. All
CAD and
CPD systems support this form of
bottom-up construction. Some systems, via associative copying of geometry between components also allow
top-down method of design.
Components can be positioned within the product assembly using absolute coordinate placement methods or by means of mating conditions. Mating conditions are definitions of the relative position of components between each other; for example alignment of axis of two holes or distance of two faces from one another. The final position of al components based on these relationships is calculated using a
geometry constraint engine built into the CAD or visualization package.
The importance of Assemly Modelling in achieving the full benefits of PLM has led to ongoing advances in this technology. These include the use of lightweight data structures such as
JT that allow visualization of and interaction with large amounts of product data, direct interface to between Digital Mockups and PDM systems and
active digital mockup technology that unites the ability to visualize the assembly mockup with the ability to measure, analyze, simulate, design and redesign.
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