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Simulation is used to evaluate the stresses and displacements between externally-loaded instances in an Assembly, allowing you to examine how an assembly reflects the loads, materials, and boundary conditions found in real-world use.

Simulation currently supports structural linear static finite element analysis, outlined below, and Modal analysis, or more specifically, natural frequency analysis, outlined in the Modal simulation topic. Simulation does not support fluid or thermal analysis.

Each simulation becomes part of your Assembly, as do the structural loads which characterize it. These loads may be reconfigured across multiple simulations, and each simulation may be reapplied across multiple assembly configurations. Interactions between instances are inferred from Mates, eliminating needless re-authoring of the model. Simulation results always reflect the current state of your model.

Product designers and engineers can use Simulation to test models early in the design and prototyping process. Interactively change materials, loads, constraints, or results, and compare multiple simulations, viewing these results immediately. This reduces the need for costly prototype iterations and optimizes your models to better meet specific design criteria.

For an additional Learning center resource, see Introduction to Onshape Simulation (Onshape account required).