Planing craft control using pneumatically driven trim tab

H. Jokar, H. Zeinali and M.H. Tamaddondar

Mathematics and Computers in Simulation (MATCOM), 2020, vol. 178, issue C, 439-463

Abstract: Dynamic instabilities are quite common in planing crafts. This study deals with the elimination of one type of dynamic instabilities known as porpoising. The controller device is a pneumatically driven trim tab that applied to the transom of the boat. The governing dynamic equations of the planing craft and the pneumatically driven system are derived. The stability analysis of the system is carried out and porpoising instability is shown under some conditions. A dual control scheme consisting of the actuator control subsystem (inner control subsystem) and the planing craft (outer control subsystem) is proposed in order to control the planing craft from porpoising instability. Since the dynamic of the pneumatic actuator system is highly nonlinear, its governing equation is reduced to a linear equation through the feedback linearization method and then the linear–quadratic regulator (LQR) control method is used to control this system. The planing craft is also controlled based on an optimal control method with the help of the controlled actuator. Finally, the actuator controller performance is examined through tracking predefined trajectories, and then it is used to control the planing craft. The stability of the planing craft is also shown in the presence of the actuator under the conditions that cause the porpoising instability. The simulation results indicate that this model can effectively be implemented to counteract porpoising in the planing crafts. Eventually, a prototype of planing craft equipped with pneumatically actuated trim tabs is constructed and the effectiveness of the proposed control system is examined in a towing tank.

Keywords: Planing boat; Porpoising; Actuator; Trim tab; Pneumatic (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378475420301889
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:178:y:2020:i:c:p:439-463

DOI: 10.1016/j.matcom.2020.05.032

Access Statistics for this article

Mathematics and Computers in Simulation (MATCOM) is currently edited by Robert Beauwens

More articles in Mathematics and Computers in Simulation (MATCOM) from Elsevier
Bibliographic data for series maintained by Catherine Liu ().