Test–analysis correlation is the critical step in adjusting the FEM to minimize the differences between the test results and the FEM predictions. In the case of modal testing, this involves adjusting the FEM mass and stiffness properties so that they are consistent with the test configuration. For static and dynamic loads analysis, correlation of testing results for specific load cases can be done to validate model predictions.
ATA’s expertise in performing analysis, often in preparation for a testing program, means that we are perfectly suited to the test–analysis correlation process as well. Our analysis and test engineers work closely together and often participate in all phases of modeling and testing activities.