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 having a compliant actuator assembly for imparting loads to a test specimen. An actual response signal of the physical test rig and the test specimen 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.

主权项

1. A test system comprising:
a physical test rig having a compliant actuator assembly responsive to a drive signal and a test specimen operably connected to the compliant actuator assembly; a non-transitory computer storage device; a processor operable with the storage device and configured to execute instructions stored on the non-transitory computer storage device that when executed
(a) apply a test drive signal to the physical test rig;(b) obtain an actual response signal of the physical test rig and the test specimen to the test drive signal;(c) calculate an error as a function of the actual response signal and a selected response signal;if the error exceeds a selected threshold:(d) obtain a new drive signal based on the error and a relaxation gain factor; and(e) repeating steps (a) through (d) wherein the test drive signal is the new drive signal until the error reaches the selected threshold.