HEEDS Analysis Templates

The first step in any design exploration study is to define the way in which the virtual prototype simulation model is to be constructed and modified.  This typically involves identifying the various modeling and simulation tools that are involved, specifying where they are executed, choosing the simulation models that are being modified, selecting the parameters being driven and monitored, and documenting what outputs are being stored for each design point.

While the actual simulation models may change from project to project, the workflow and the way the models are tested often remains the same.  For example, the workflow for finding the best lower control arm configuration for a vehicle front suspension is identical (or very similar) across vehicle platforms. The input for geometry ranges, loads and required performance change.

Figure 1. Example HEEDS workflow

Figure 1. Example HEEDS workflow

Continue reading

Using Constraints to Limit the Range of the Pareto Front

Sometimes we have more than one output response that needs to be either minimized or maximized, so we need some way to encourage multiple responses to be as small as possible or as large as possible at the same time. These are called multi-objective design exploration problems.

One of the most common reasons for using multiple objectives is to assess the trade-off between two or more competing responses. In other words, what is the cost to improve one response in terms of making another response worseContinue reading