On the Shaker Simulation of Wind-Induced Non-Gaussian Random Vibration
Joint Authors
Xu, Fei
Li, Chuanri
Jiang, Tongmin
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-01-10
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Gaussian signal is produced by ordinary random vibration controllers to test the products in the laboratory, while the field data is usually non-Gaussian.
Two methodologies are presented in this paper for shaker simulation of wind-induced non-Gaussian vibration.
The first methodology synthesizes the non-Gaussian signal offline and replicates it on the shaker in the Time Waveform Replication (TWR) mode.
A new synthesis method is used to model the non-Gaussian signal as a Gaussian signal multiplied by an amplitude modulation function (AMF).
A case study is presented to show that the synthesized non-Gaussian signal has the same power spectral density (PSD), probability density function (PDF), and loading cycle distribution (LCD) as the field data.
The second methodology derives a damage equivalent Gaussian signal from the non-Gaussian signal based on the fatigue damage spectrum (FDS) and the extreme response spectrum (ERS) and reproduces it on the shaker in the closed-loop frequency domain control mode.
The PSD level and the duration time of the derived Gaussian signal can be manipulated for accelerated testing purpose.
A case study is presented to show that the derived PSD matches the damage potential of the non-Gaussian environment for both fatigue and peak response.
American Psychological Association (APA)
Xu, Fei& Li, Chuanri& Jiang, Tongmin. 2016. On the Shaker Simulation of Wind-Induced Non-Gaussian Random Vibration. Shock and Vibration،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1119317
Modern Language Association (MLA)
Xu, Fei…[et al.]. On the Shaker Simulation of Wind-Induced Non-Gaussian Random Vibration. Shock and Vibration No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1119317
American Medical Association (AMA)
Xu, Fei& Li, Chuanri& Jiang, Tongmin. On the Shaker Simulation of Wind-Induced Non-Gaussian Random Vibration. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1119317
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119317