PreTest
PreTest allows prediction and optimization of the sensor locations (accelerometers) for measurements and directions along with test excitation point location, a very important step in the experimental modal analysis process directly affecting the accuracy of test results. Driving point residue (DPR) calculation gives information on optimum point for excitation location.
The vibration shape results, along with the finite element mesh of the structure, are
assumed to come in one of the following result files:
- H3D – binary result file typically generated using OptiStruct.
- OP2 – binary result file typically generated using OptiStruct or Nastran.
- ODB - binary result file typically generated using Abaqus.