Experimental study of control laws for supercavitating vehicles.
2012-03
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Experimental study of control laws for supercavitating vehicles.
Authors
Published Date
2012-03
Publisher
Type
Thesis or Dissertation
Abstract
Supercavitation is when a cavity is made to envelop a submerged body. Supercavitation can be used to achieve an order of magnitude reduction in drag on underwater vehicles. Supercavitating vehicles can reach unprecedented speeds underwater. Supercavitation has reportedly been used to create underwater vehicles that reach speeds of 370 km/h, which is significantly faster than the fastest traditional submarine vehicles.
Methods and technologies to control and maneuver supercavitating vehicles are actively being researched. The efforts to develop control strategies and assess the effectiveness of control effectors are hampered by a lack of access to working test beds and operational vehicles. This thesis describes the development and testing of an experimental test bed for validating the performance of control strategies for supercavitating vehicles. The test bed addresses the need for an experimental platform that enables researchers to test candidate control algorithms and associated technologies on a real, physical, supercavitating system.
The test bed was used to evaluate the performance of feedback control systems on a model supercavitating vehicle in a water tunnel. Two controllers were developed using H∞ control design techniques and evaluated on the test bed. The validity of the hydrodynamic model that the control designs were based on was established, and a comparison and partial validation of their performance was obtained in water tunnel experiments. The experiments demonstrated that a test bed of this kind can be used to evaluate control algorithms, and study the effects of active control systems on a supercavitating vehicle.
Description
University of Minnesota Ph.D. dissertation. March 2012. Major: Aerospace Engineering and Mechanics. Advisor:Gary J. Balas, Roger E. A. Arndt,. 1 computer file (PDF)xix, 207 pages, appendices A-C.
Related to
Replaces
License
Collections
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Hjartarson, Arnar. (2012). Experimental study of control laws for supercavitating vehicles.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/122855.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.