کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
286885 | 509519 | 2016 | 9 صفحه PDF | دانلود رایگان |
• This paper presents a technique for offline time synchronization.
• The synchronization is based on the dynamic response of the structure only.
• The synchronization is performed using the results obtained from system identification.
• A demonstration shows that accurate results are obtained.
This paper presents a technique for offline time synchronization of data acquisition systems. The technique can be applied when real-time synchronization of data acquisition systems is impossible or not sufficiently accurate. It allows for accurate synchronization based on the acquired dynamic response of the structure only, without requiring a common response or the use of a trigger signal. The synchronization is performed using the results obtained from system identification, and assumes linear dynamic behavior of the structure and proportional damping of the structural modes. A demonstration for a laboratory experiment on a cantilever steel beam shows that the proposed methodology can be used for accurate time synchronization, resulting in a significant improvement of the accuracy of the identified mode shapes.
Journal: Journal of Sound and Vibration - Volume 381, 27 October 2016, Pages 264–272