Correction of Transducers Mass Effects from the Measured FRFs in Hammer Impact Testing
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-11-13
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In modal testing, the measured frequency response functions (FRFs) are often affected by transducer mass effects.
Especially when multiple sensors are employed, transducers mass effects are more significant.
This paper deals with removing sensors mass effects from the measured FRFs in hammer impact testing.
The proposed method offers some advantages over the available techniques in that extra FRFs measurements with different configurations are not required during the correction process.
Firstly, correction method for single accelerometer case is discussed.
Further, general correction formulation for multiple accelerometers case is derived.
Then, validations of the proposed method are demonstrated using simulated and experimental data.
It shows good effectiveness in experimental validation for single accelerometer case.
Numerical simulation also demonstrates a good performance for multiple accelerometers case.
However, further simulations with noisy-polluted data show that the accuracy of correction results will be affected to some extent by the noise.
It is suggested that the measured FRFs be preprocessed using the curve-fitting procedure or noise reduction processing before applying the proposed method.
American Psychological Association (APA)
Ren, Jun& Wang, Jun& Bi, Shusheng. 2017. Correction of Transducers Mass Effects from the Measured FRFs in Hammer Impact Testing. Shock and Vibration،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1204858
Modern Language Association (MLA)
Ren, Jun…[et al.]. Correction of Transducers Mass Effects from the Measured FRFs in Hammer Impact Testing. Shock and Vibration No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1204858
American Medical Association (AMA)
Ren, Jun& Wang, Jun& Bi, Shusheng. Correction of Transducers Mass Effects from the Measured FRFs in Hammer Impact Testing. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1204858
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204858