Vibration Analysis of a Piecewise-Smooth System with Negative Stiffness under Delayed Feedback Control

Joint Authors

Huang, Dongmei
Li, Wei
Yang, Guidong
He, Meijuan
Dang, Hong

Source

Shock and Vibration

Issue

Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2017-08-29

Country of Publication

Egypt

No. of Pages

14

Main Subjects

Civil Engineering

Abstract EN

The principal resonance of a delayed piecewise-smooth (DPWS) system with negative stiffness under narrow-band random excitation is investigated in aspects of multiscale analysis, design methodology of the controller, and response properties.

The amplitude-frequency response and steady-state moments together with the corresponding stability conditions of the controlled stochastic system are derived, in which the degradation case is also under consideration.

Then, from the perspective of the equivalent damping, the comparisons of the response characteristics of the controlled system to the uncontrolled system, such as the phenomenon of frequency island, are fulfilled.

Furthermore, sensitivity of the system response to feedback gain and time delay is studied and interesting dynamic properties are found.

Meanwhile, the classification of the steady-state solution is also discussed.

To control the maximum amplitude, the feedback parameters are determined by the frequency response together with stability boundaries which must be utilized to exclude the combinations of the unstable parameters.

For the case with small noise intensity, mean-square responses present the similar characteristics to what is discussed in the deterministic case.

American Psychological Association (APA)

Huang, Dongmei& Li, Wei& Yang, Guidong& He, Meijuan& Dang, Hong. 2017. Vibration Analysis of a Piecewise-Smooth System with Negative Stiffness under Delayed Feedback Control. Shock and Vibration،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1204277

Modern Language Association (MLA)

Huang, Dongmei…[et al.]. Vibration Analysis of a Piecewise-Smooth System with Negative Stiffness under Delayed Feedback Control. Shock and Vibration No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1204277

American Medical Association (AMA)

Huang, Dongmei& Li, Wei& Yang, Guidong& He, Meijuan& Dang, Hong. Vibration Analysis of a Piecewise-Smooth System with Negative Stiffness under Delayed Feedback Control. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1204277

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1204277