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Planing craft control using pneumatically driven trim tab

Author

Listed:
  • Jokar, H.
  • Zeinali, H.
  • Tamaddondar, M.H.

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.

Suggested Citation

  • Jokar, H. & Zeinali, H. & Tamaddondar, M.H., 2020. "Planing craft control using pneumatically driven trim tab," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 178(C), pages 439-463.
    • Handle: RePEc:eee:matcom:v:178:y:2020:i:c:p:439-463
    DOI: 10.1016/j.matcom.2020.05.032
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    References listed on IDEAS

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    1. Jun Liu & Feihang Zhou & Chencong Zhao & Zhuoran Wang, 2019. "A PI-Type Sliding Mode Controller Design for PMSG-Based Wind Turbine," Complexity, Hindawi, vol. 2019, pages 1-12, June.
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