Piecewise Polynomial Fitting with Trend Item Removal and Its Application in a Cab Vibration Test
Joint Authors
Ren, Wu
Ren, Qiongqiong
Peng, Bo
Han, Lin
Liu, Ying
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The trend item of a long-term vibration signal is difficult to remove.
This paper proposes a piecewise integration method to remove trend items.
Examples of direct integration without trend item removal, global integration after piecewise polynomial fitting with trend item removal, and direct integration after piecewise polynomial fitting with trend item removal were simulated.
The results showed that direct integration of the fitted piecewise polynomial provided greater acceleration and displacement precision than the other two integration methods.
A vibration test was then performed on a special equipment cab.
The results indicated that direct integration by piecewise polynomial fitting with trend item removal was highly consistent with the measured signal data.
However, the direct integration method without trend item removal resulted in signal distortion.
The proposed method can help with frequency domain analysis of vibration signals and modal parameter identification for such equipment.
American Psychological Association (APA)
Ren, Wu& Ren, Qiongqiong& Han, Lin& Liu, Ying& Peng, Bo. 2018. Piecewise Polynomial Fitting with Trend Item Removal and Its Application in a Cab Vibration Test. Journal of Sensors،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1201081
Modern Language Association (MLA)
Ren, Wu…[et al.]. Piecewise Polynomial Fitting with Trend Item Removal and Its Application in a Cab Vibration Test. Journal of Sensors No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1201081
American Medical Association (AMA)
Ren, Wu& Ren, Qiongqiong& Han, Lin& Liu, Ying& Peng, Bo. Piecewise Polynomial Fitting with Trend Item Removal and Its Application in a Cab Vibration Test. Journal of Sensors. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1201081
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201081