Digital Design And Manufacture 3.1.7 Flashcards
What is CFD (Computational Fluids Dynamics)?
(Virtual Modelling)
CFD is a 3D CAD simulation tool for fluid or gas flow in or around a product.
What is CFD used for ?
fluid or gas flow in and around a product - vehicle drag (wind resistance can be tested)
Benefits Of CFD ?
Testing can inform aerodynamic improvements
Designers save time and money that would be required for physical testing.
What is FEA (Finite Element and Analysis) ?
(Virtual modelling)
Finite Element Analysis is is the analysis of stress in elements of CAD design
Benefits of Finite Element Analysis (FEA) ?
- It allows desingers to simulate forces , vibration or shock loads on products or componnents
- weak points are highlighted by colour coded scale
- Money and time can be saved as the desings are optimised by modifying and re- testing
What is the difference between rapid and quick prototyping ?
rapid protoype testing is linked to models made using computer based technology such as 3D printers whereas quick prototype refers to the use of modelling foam and other materials to mock up potential design.
What is stereolithographic Modelling?
(Rapid Prototyping Process)
Where UV laser solidifies layers of photopolymer , used for potteries.
What is Fused deposition Modelling (FDM)
(Rapid Prototyping system) 3D printing
3D printers use FDM to print 3d models from CAD files
- uses an extruded thermoplastic filament
What is Electronic Point of Scale (EPOS)
Electronic data exchange
EPOS is a computer-based scanned barcode system for capturing data when consumers buy products.
- stock levels can be recorded
- Product life cycle can be established
What is the Master Production Schedule(MPS)?
(Production planning and control systems)
Software-based system to organise and schedule product manufacture.
- Shows availability of materials - Kanban
- Schedules machines and people
- Co-ordinates suppliers and customers.
