TEST SYSTEM HAVING A COMPLIANT ACTUATOR ASSEMBLY AND ITERATIVELY OBTAINED DRIVE

摘要

A test system and a method includes applying a test drive signal to a physical test rig (10,200) having a compliant actuator assembly (150) for imparting loads to a test specimen (18). An actual response signal of the physical test rig (10) and the test specimen (18) to the test drive signal is obtained and an error as a function of the actual response signal and a selected response signal is calculated. If the error has not reached a selected threshold a new drive signal based on the error and a relaxation gain factor is obtained. The new drive signal is obtained and applied until the error reaches the selected threshold.