| 摘要 |
PURPOSE: A vehicle durability testing method by using a random signal is provided to simultaneously carry out the durability test for respective parts by using the white noise and a road simulator, thereby reducing the testing time, and effectively carry out the test by identifying the fatigue reasons on the basis of frequency bands influencing on the parts, thereby improving the reliability of the test. CONSTITUTION: A vehicle durability testing method by using a random signal includes a test initializing step of driving an actuator by using a random signal(while noise) initialized for testing the durability of respective parts, a rigidity detecting step of detecting rigidities by using damage data of the respective parts computed by using a strain gauge in response to the driving of the actuator, a rigidity processing step of standardizing the detected rigidities uniformly by editing the random signal according to the detected rigidities and controlling frequency bands of the respective parts, and a durability testing step of carrying out the test of the durability of the respective parts according to the standardized rigidities.
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