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Robustness of Supercavitating Vehicles Based on Multistability Analysis
Joint Authors
Wen-jun, Yi
Guan, Jun
Xiong, Tianhong
Lv, Yipin
Source
Advances in Mathematical Physics
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-05
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Supercavity can increase speed of underwater vehicles greatly.
However, external interferences always lead to instability of vehicles.
This paper focuses on robustness of supercavitating vehicles.
Based on a 4-dimensional dynamic model, the existence of multistability is verified in supercavitating system through simulation, and the robustness of vehicles varying with parameters is analyzed by basins of attraction.
Results of the research disclose that the supercavitating system has three stable states in some regions of parameters space, namely, stable, periodic, and chaotic states, while in other regions it has various multistability, such as coexistence of two types of stable equilibrium points, coexistence of a limit cycle with a chaotic attractor, and coexistence of 1-periodic cycle with 2-periodic cycle.
Provided that cavitation number varies within a small range, with increase of the feedback control gain of fin deflection angle, size of basin of attraction becomes smaller and robustness of the system becomes weaker.
In practical application, robustness of supercavitating vehicles can be improved by setting parameters of system or adjusting initial launching conditions.
American Psychological Association (APA)
Lv, Yipin& Xiong, Tianhong& Wen-jun, Yi& Guan, Jun. 2017. Robustness of Supercavitating Vehicles Based on Multistability Analysis. Advances in Mathematical Physics،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1123264
Modern Language Association (MLA)
Lv, Yipin…[et al.]. Robustness of Supercavitating Vehicles Based on Multistability Analysis. Advances in Mathematical Physics No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1123264
American Medical Association (AMA)
Lv, Yipin& Xiong, Tianhong& Wen-jun, Yi& Guan, Jun. Robustness of Supercavitating Vehicles Based on Multistability Analysis. Advances in Mathematical Physics. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1123264
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123264