What is ISO 21143 about?
ISO 21143 specifies the requirements for a digital mock-up virtual assembly test (VAT) for mechanical products, which is suitable for guiding virtual assembly testing before physical production. The application of ISO 21143 will help you in an effective VAT and efficient on-site assembly. This test is applicable to 3D nominal models with theoretically exact dimensions.
Who is ISO 21143 for?
ISO 21143 on requirements for digital mock-up virtual assembly test for mechanical products is useful for:
- Mechanical product manufacturers
- Designers and testers
- Manufacturing plants
Why should you use ISO 21143?
The digital mock-up virtual assembly test (VAT) is a computer simulation procedure in lieu of performing a physical prototype test for a product to verify the compatibility of the mechanical interface and the feasibility of assembly. ISO 21143 can be used by you to explore and resolve interface and/or assembly problems before physical product assembly. VAT activities typically include virtual interference inspection, assembly process analysis and ergonomic evaluation based on 3D nominal models in the design phase. It can be helpful to consider the results of a VAT to predict and provide early warnings regarding the risk of interference or assembly problems, although the VAT cannot completely replace all the tests in on-site assembly testing.
The objectives of the VAT are as follows:
- Verify the mechanical interface compatibility of units, sub-systems and products
- Ensure that the design output is interference-free and that all contacts or clearances are acceptable
- Validate layout design at every assembly level
- Verify assembly feasibility in the manufacturing and operational environments
- Evaluate the assembly process to optimize the assembly plan.
ISO 21143 provides you with the VAT process, test plan, implementation requirements and review requirements. This will help you carry out the test effectively.
ISO 21143 gives guidance for model preparations for product modelling, environment modelling, virtual operator modelling and model qualification.