MODELING THE FORWARD ACCELERATED MOTION OF PLANING CRAFT AND ITS OPTIMAL CONTROL TO MINIMIZE THE TIME TO REACH FINAL SPEED

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AZIZI YENGEJEH MORTAZA; MEHDIGHOLI HAMID; SEIF MOHAMMAD SAEID

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Journal: Modares Mechanical Engineering Year:2016 | Volume:15 | Issue:11 Page(s): 263-274

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Title

MODELING THE FORWARD ACCELERATED MOTION OF PLANING CRAFT AND ITS OPTIMAL CONTROL TO MINIMIZE THE TIME TO REACH FINAL SPEED

Author(s)

AZIZI YENGEJEH MORTAZA | MEHDIGHOLI HAMID | SEIF MOHAMMAD SAEID | Issue Writer Certificate

Keywords

PLANNING CRAFTQ2

TRIM TABQ2

OPTIMAL CONTROLQ2

PONTRYAGIN MINIMUM PRINCIPLEQ2

Abstract

It is of crucial importance to adjust the trim angle properly during the forward acceleration of a PLANNING CRAFT in cases such as sport competitions and military missions. In these applications, the goal of trim adjustment is to reach the final cruising speed as soon as possible. Present study tries to answer this question: How should the angles of the drive system and/or a control element be changed during acceleration phase in order for the craft to reach its final speed in the minimum possible time? This is an OPTIMAL CONTROL problem with the drive and control element angles as its control variables. To solve such problem, a 3-DOF dynamic model is developed based on the theoretical and empirical methods. Both propeller operation and the engine are taken into account for the propulsion system. Then, the solution algorithm of time-optimal control problem is explained according to an indirect method. Results for a planning mono-hull with two different weight distributions show a similarity in trend between the optimal solution for control variables and the hull instantaneous trim angle. As the second case study, the solution for an aerodynamically alleviated racing catamaran is presented.

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APA: Copy

AZIZI YENGEJEH, MORTAZA, MEHDIGHOLI, HAMID, & SEIF, MOHAMMAD SAEID. (2016). MODELING THE FORWARD ACCELERATED MOTION OF PLANING CRAFT AND ITS OPTIMAL CONTROL TO MINIMIZE THE TIME TO REACH FINAL SPEED. MODARES MECHANICAL ENGINEERING, 15(11), 263-274. SID. https://sid.ir/paper/177765/en

Vancouver: Copy

AZIZI YENGEJEH MORTAZA, MEHDIGHOLI HAMID, SEIF MOHAMMAD SAEID. MODELING THE FORWARD ACCELERATED MOTION OF PLANING CRAFT AND ITS OPTIMAL CONTROL TO MINIMIZE THE TIME TO REACH FINAL SPEED. MODARES MECHANICAL ENGINEERING[Internet]. 2016;15(11):263-274. Available from: https://sid.ir/paper/177765/en

IEEE: Copy

MORTAZA AZIZI YENGEJEH, HAMID MEHDIGHOLI, and MOHAMMAD SAEID SEIF, “MODELING THE FORWARD ACCELERATED MOTION OF PLANING CRAFT AND ITS OPTIMAL CONTROL TO MINIMIZE THE TIME TO REACH FINAL SPEED,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 11, pp. 263–274, 2016, [Online]. Available: https://sid.ir/paper/177765/en

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