| 摘要 |
A method is provided of generating a customised finite element mesh for a component which is an actual example of a nominal component represented by a generic finite element mesh, the actual component displaying shape variation relative to the generic finite element mesh. The method includes steps of: providing the generic finite element mesh; providing a library of displacement shapes of the generic mesh, each displacement shape being applicable to the generic mesh to generate an altered mesh; providing a set of scanned data points which map the surface of the actual component, each scanned data point defining the spatial position of a respective location on the surface of the actual component; superposing the scanned data points on the surface of the generic mesh; projecting the scanned data points onto respective proximal surface locations of the generic mesh to form a set of near data points, each near data point defining the spatial position of the respective location on the surface of the generic mesh; determining a combination of the displacement shapes which substantially removes the shape variation by reducing or eliminating deviations between scanned data points and their corresponding near data points; and applying the combination of displacement shapes to the generic mesh to generate a customised finite element mesh for the actual component. |
