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1

A dynamic submerging motion model of the hybrid-propelled unmanned underwater vehicle: Simulation and experimental verification

Talarczyk Tomasz

International Journal of Applied Mathematics and Computer Science

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2023

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Vol. 33, no. 2

207--218

EN

Hybrid propulsion in underwater vehicles is the new idea of combining conventional propulsion systems such as screw propellers with other kinds of propulsion like oscillating biomimetic fins, glider wings or jet thrusters. Each of these propulsion systems has its own benefits and drawbacks, and the goal is to have them complement each other in certain conditions. This paper covers the topic of a dynamic model of the pitch and heave motion of the HUUV (hybrid unmanned underwater vehicle) using screw propellers and biomimetic lateral fins. Firstly, the simulation model of the vehicle performing depth and pitch change is presented. Secondly, the vehicle’s hydrodynamic coefficients obtained from CFD simulations are discussed. Thirdly, the results of the HUUV experimental studies in a swimming pool are presented. Lastly, simulation results are compared with those of the experiment to verify the correctness of the model. The vehicle’s motion in the swimming pool during the experiments was recorded using a submerged camcorder and then analysed using the Tracker software.

2

Depth control for biomimetic and hybrid unmanned underwater vehicles

Morawski Marcin, Talarczyk Tomasz, Malec Marcin

Technical Transactions

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2021

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Vol. 118, iss. 1

art. no. e2021024

EN

Unmanned underwater vehicles which use biomimetic mechanisms are becoming increasingly useful in the realisation of tasks requiring silent and efficient propulsion. Complex fish kinematics are simplified to some extent and implemented in such vehicles. One of the essential fish behaviours is their ability to adjust their buoyancy using a swim bladder. This paper covers the issues concerning the implementation of artificial swim bladders as well as depth regulators in two underwater vehicles: biomimetic and hybrid. The control of vehicle depth through buoyancy change was examined in the computer simulation and in the experiment. Two types of artificial swim bladder were tested – a rigid cylinder with a piston and an elastic container with a water pump.

3

Influence of fin’s material capabilities on the propulsion system of biomimetic underwater vehicle

Piskur Pawel, Szymak Piotr, Kitowski Zygmunt, Flis Leszek

Polish Maritime Research

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2020

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nr 4

179--185

EN

The technology of Autonomous Underwater Vehicles (AUVs) is developing in two main directions focusing on improving autonomy and improving construction, especially driving and power supply systems. The new Biomimetic Underwater Vehicles (BUVs) are equipped with the innovative, energy efficient driving system consisting of artificial fins. Because these driving systems are not well developed yet, there are great possibilities to optimize them, e.g. in the field of materials. The article provides an analysis of the propulsion force of the fin as a function of the characteristics of the material from which it is made. The parameters of different materials were used for the fin design and their comparison. The material used in our research was tested in a laboratory to determine the Young’s modulus. For simplicity, the same fin geometry (the length and the height) was used for each type of fin. The Euler–Bernoulli beam theory was applied for estimation of the fluid–structure interaction. This article presents the laboratory test stand and the results of the experiments. The laboratory water tunnel was equipped with specialized sensors for force measurements and fluid–structure interaction analysis. The fin deflection is mathematically described, and the relationship between fin flexibility and the generated driving force is discussed.

4

Thrust measurement of biomimetic underwater vehicle with undulating propulsion

Szymak P., Przybylski M.

Zeszyty Naukowe Akademii Marynarki Wojennej

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2018

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R. 59 nr 2 (213)

69--82

EN

In the recent years, a dynamical development of an underwater robotics has been noticed. One of the newest group of underwater robots are biomimetic underwater vehicles. These vehicles are driven by undulating propulsion imitating fins of underwater creatures, e.g. a fish, a seal, etc. This paper undertakes problem of thrust measurement of new biomimetic underwater vehicle equipped with undulating propulsion. At the beginning, the stand for thrust measurement is described. Then, two constructions of BUVs imitating a fish and a seal are presented. Further, the results of thrust measurement for two different undulating propulsions are inserted. At the end of the paper containing conclusions from performed measurements and foreseen research is included.

PL

W ostatnich latach nastąpił dynamiczny rozwój robotyki podwodnej. Jedną z najnowszych grup robotów podwodnych są biomimetyczne pojazdy podwodne (BPP) napędzane ruchem falowym imitującym ruch płetw podwodnych zwierząt, np. ryb, fok itp. W artykule dokonano pomiaru naporu nowego BPP wyposażonego w napęd falowy. Na początku opisano stanowisko do pomiaru naporu. Następnie przedstawiono dwie konstrukcje BPP imitujących ruch ryby i foki. W dalszej kolejności zaprezentowano wyniki pomiarów naporu dla dwóch różnych typów napędu falowego. Na końcu artykułu zawarto wnioski z przeprowadzonych pomiarów, a także przewidywane kierunki dalszych prac badawczych.

5

Turning maneuver of biomimetic underwater vehicle

Praczyk T., Szymak P.

Measurement Automation Monitoring

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2017

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Vol. 63, No. 7

234--237

EN

Biomimetic underwater vehicle equipped with two side fins and one tail fin can perform a turning maneuver in many ways using for that purpose a suitable setting of its fins. In order to select the most effective variant of the turning maneuver a number of tests with a real vehicle were performed. The paper presents the tests themselves as well as their results.

6

Laboratory stand for research on mini CyberSeal

Szymak P., Praczyk T., Pietrukaniec L., Hożyń S.

Measurement Automation Monitoring

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2017

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Vol. 63, No. 7

228--233

EN

In recent times, we may notice some new designs of underwater vehicles, which imitate living underwater organisms, e.g. a fish, a seal, a turtle, etc. These vehicles are called biomimetic. They are driven by undulating propulsion, imitating wavy motion of fins, which were created during many years of evolution. In the paper, a laboratory stand for research on Biomimetic Underwater Vehicle (BUV) called mini CyberSeal is presented. The main objectives of the stand is to investigate future construction of BUV imitating a seal (made in scale) and to test different control algorithms for this BUV. At the beginning of the paper, an introduction to the research area and a structure of the laboratory stand is described in general, and then in the following section all elements of the stand are presented in details. At the end of the paper, an initial research on mini CyberSeal and a schedule of the future research are inserted.

7

Sterowanie biomimetycznym pojazdem podwodnym na płaszczyźnie poziomej : badania symulacyjne

Szymak P., Praczyk T.

Autobusy : technika, eksploatacja, systemy transportowe

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2017

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R. 18, nr 12

1324--1327, CD

PL

W ciągu ostatnich lat można zaobserwować rozwój nowych konstrukcji pojazdów podwodnych, które imitują żywe organizmy występujące pod wodą, np. ryby. Tego typu pojazdy nazywane są biomimetycznymi. Są one napędzane przez napęd falowy imitujący ruch falowy płetw. W artykule omówiony został model matematyczny ruchu biomimetycznego pojazdu podwodnego BPP. Model ten, po zaimplementowaniu w środowisku Matlab został wykorzystany do przeprowadzenia badań numerycznych, mających na celu dobór parametrów systemu sterowania, pozwalającego na automatyczny ruch na płaszczyźnie poziomej.

EN

In recent times, we may notice some new designs of underwater vehicles, which imitate living underwater organisms, e.g. a fish. These vehicles are called biomimetic. They are driven by undulating propulsion, imitating wavy motion of fins. In the paper, mathematical model of biomimetic underwater vehicle was presented. This model after its implementation in Matlab environment was used in numerical tests, which the aim was selection of parameters of control system enabling on automatic motion on vertical surface

8

Research on biomimetic underwater vehicles undertaken at Institute of Electrical Engineering and Automatics

Szymak P.

Zeszyty Naukowe Akademii Marynarki Wojennej

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2016

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R. 57 nr 3 (206)

107--119

EN

In the recent years, a dynamical development of an underwater robotics has been noticed. The robotics is developed in several different directions by many foreign and a few national R&D centers. The development is focused on both an improvement of construction and features of the underwater vehicles (a hardware development) and an increase of underwater vehicle autonomy providing to a swarm control (a software development). In the paper, new research area focused on biomimetic underwater robots undertaken at the Institute of Electrical Engineering and Automatics in the recent years is presented. The area concern both hardware and software development of the underwater vehicles. In the paper, the research on biomimetic underwater vehicles developed within national and international projects is described. At the end of the paper, a summary containing foreseen research is included.

PL

W ostatnich latach obserwuje się dynamiczny rozwój robotyki podwodnej. Rozwija się ona w kilku kierunkach w ramach badań prowadzonych przez wiele zagranicznych i krajowych ośrodków naukowo-badawczych. Rozwój robotyki podwodnej skupia się zarówno na udoskonalaniu konstrukcji i właściwości pojazdów podwodnych (rozwój sprzętowy), jak się na zwiększaniu autonomii pojazdów podwodnych w kierunku sterowania ławicą (rozwój programowy). W artykule zaprezentowano nowe badania nad biomimetycznymi pojazdami podwodnymi realizowane w Instytucie Elektrotechniki i Automatyki Okrętowej w ciągu ostatnich kilku lat. Badania te skupiają się zarówno na sprzętowym, jak i programowym rozwoju robotyki podwodnej. Opisano badania prowadzone w zakresie biomimetycznych pojazdów podwodnych zrealizowane w ramach projektów krajowego i międzynarodowego. W zakończeniu artykułu zawarto podsumowanie zawierające prognozowane badania.

9

Dobór manewru zmiany kursu dla biomimetycznego pojazdu podwodnego na podstawie badań symulacyjnych

Szymak P., Praczyk T.

Autobusy : technika, eksploatacja, systemy transportowe

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2016

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R. 17, nr 12

1377--1380

PL

W ciągu ostatnich lat można zaobserwować rozwój nowych konstrukcji pojazdów podwodnych, które imitują żywe organizmy występujące pod wodą, np. ryby. Tego typu pojazdy nazywane są biomimetycznymi. Są one napędzane przez napęd falowy imitujący ruch falowy płetw. W artykule omówiony został model matematyczny ruchu biomimetycznego pojazdu podwodnego BPP. Model ten, po zaimplementowaniu w środowisku Matlab został wykorzystany do przeprowadzenia badań numerycznych, mających na celu dobór właściwego manewru zmiany kursu przez BPP.

EN

In recent times, we may notice some new designs of underwater vehicles, which imitate living underwater organisms, e.g. a fish. These vehicles are called biomimetic. They are driven by undulating propulsion, imitating wavy motion of fins. In the paper, mathematical model of biomimetic underwater vehicle was presented. This model after its implementation in Matlab environment was used in numerical tests. The aim of the tests was to select proper course change maneuver used by biomimetic underwater vehicle.

10

Using Genetic Algorithms for Optimizing Algorithmic Control System of Biomimetic Underwater Vehicle

Praczyk T.

Computational Methods in Science and Technology

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2015

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Vol. 21, No. 4

251--260

EN

Autonomous underwater vehicles are vehicles that are entirely or partly independent of human decisions. In order to obtain operational independence, the vehicles have to be equipped with a specialized control system. The main task of the system is to move the vehicle along a path with collision avoidance. Regardless of the logic embedded in the system, i.e. whether it works as a neural network, fuzzy, expert, or algorithmic system or even as a hybrid of all the mentioned solutions, it is always parameterized and values of the system parameters affect its effectiveness. The paper reports the experiments whose goal was to optimize an algorithmic control system of a biomimetic autonomous underwater vehicle. To this end, three different genetic algorithms were used, i.e. a canonical genetic algorithm, a steady state genetic algorithm and a eugenic algorithm.