El diseño de ingeniería desde el punto de vista paramétrico

Abstract

To use parametric modelling successfully, you must approach a design session in a new way, you must understand how to use parametric modelling. If you try to model the same way you use a traditional CAD system, you will not take full advantage of its power. Parametric modelling Strategies: Analyze design first: Parameters drive a model, so it is important to plan ahead. Analyze the design and then determine the structure of a part. Before you begin to create a model, take the time to think about how your design is likely to change. The system uses the command options and construction constraints you enter to regenerate the model. The parameters generated by each command drive the model. Parallel modelling approach: Each area of the design is build independently of the others. Using this approach, you split the design into separate functional blocks. Build each block independently. If geometry within one of the functional blocks changes, other functional blocks remain intact. You may only need to redo some of the final Boolean and filleting steps. The least dependency method: This methodology involves creating parametric entities that are dependent upon as few other entities as possible. By limiting dependency, future modifications to the part will impact fewer entities within the part. Basic construction using corners: Is fundamentally based upon the principle that, in the majority of situations, geometry may be controlled via its corners. This method reduces the likelihood of model regeneration failures and provides a common modelling approach. The knock on effect of modelling corners is that the number of parameters can be reduced. Removing geometry: if you have to delete an entity you should not have created it.