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Tytuł:
A comparison of objective functions of optimization-based smoothing algorithm for tetrahedral mesh improvement
Autorzy:
Dai, C.
Liu, H.-L.
Dong, L.
Powiązania:
https://bibliotekanauki.pl/articles/279637.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
objective function
mesh quality metric
optimization-based smoothing
mesh quality improvement
mesh generation
Opis:
The objective function based on mesh quality metric has a major impact on smoothing unstructured tetrahedral meshes. The ability of seven mesh quality metrics to distinguish four kinds of poor-quality elements and their effects on the change of element shape are analyzed in detail. Then, four better mesh quality metrics are chosen to construct objective functions. In addition, the rational determination of searching direction and the optimal step size in the optimization algorithm of solving the objective function are proposed. Finally, comparisons with the other three objective functions are made according to different number of elements, iteration limit, and the desired accuracy in the improved mesh. It is found that with the increase of the number of elements, the time consumed during optimization increases, but the changes of the worst quality element are different. The number of iterations has little effect on the mesh quality and the time cost. The increasing of the desired degree of accuracy will improve the mesh quality and cost more time. Furthermore, the approach using objective function is compared with Freitag’s common approach. It is clearly shown that it performs better than the existing approach.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 1; 151-163
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An improved resonant thermal converter based on micro-bridge resonator
Autorzy:
Dong, L.
Han, J.
Zhang, P.
Zhao, Z.
Cheng, B.
Han, D.
Powiązania:
https://bibliotekanauki.pl/articles/220878.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermoelectric transfer difference
micro-bridge resonator
thermal converter
bifilar heater
Opis:
This paper presents the design, fabrication and testing of an improved thin-film thermal converter based on an electro-thermally excited and piezo-resistively detected micro-bridge resonator. The resonant thermal converter comprises a bifilar heater and an opposing micro-bridge resonator. When the micro-bridge resonator absorbs the radiant heat from the heater, its axial strain changes, then its resonant frequency follows. Therefore the alternating voltage or current can be transferred to the equivalent DC quantity. A non-contact temperature sensing mechanism eliminates heat loss from thermopiles and reduces coupling capacitance between the temperature sensor and the heater compared with traditional thin-film thermal converters based on thermopiles. In addition, the quasi-digital output of the resonant thin-film thermal converter eliminates such problems as intensity fluctuations associated with analogue signals output by traditional thin-film thermal converters. Using the fast-reversed DC (FRDC) method, the thermoelectric transfer difference, which determines the frequency-independent part of the ac-dc transfer difference, is evaluated to be as low as 1.1 · 10-6. It indicates that the non-contact temperature sensing mechanism is a feasible method to develop a high-performance thermal converter.
Źródło:
Metrology and Measurement Systems; 2018, 25, 4; 715-725
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on rub-impact loads response of ship shafting
Autorzy:
Dong, L.
Shi, Y.
Wang, S.
Powiązania:
https://bibliotekanauki.pl/articles/260309.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
rub-impact
Torsional Vibration
Test Rig
Rubbing Generator
Opis:
The anti-impact ability of shafting affects stability and security of the ship power transmission directly. Moreover, it also cannot be ignored that the rub-impact loads have influence on the torsion vibration of ship shafting. In order to solve the problem of engineering application of reliability assessment under rub-impact loads, a test rig with rubbing generator is established. By carrying out the integrative analysis, the torsional vibration characteristics, such as vibration amplitude and orbit of axle center under the rub impact load are studied. According to the rub-impact conditions obtained through numerical simulation, the experimental verification is carried out on the test rig with rubbing generator. The results show that it is not obvious the influence of rub-impact loads upon the shafting torsion vibration except in special working conditions, that can be simulated by the rubbing generator. The maximum amplitude of torsional vibration is influenced by the radial rigidity as well as the friction coefficient of rubbing body, and the degree of influence is difference under conditions of continuous rubbing and serious rubbing. By adjusting the rigidity of stern bearing, the influence of rub-impact upon shafting can be weaken, which provides a theoretical reference for the safety evaluation of ship shafting.
Źródło:
Polish Maritime Research; 2018, S 2; 85-91
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on the design of container highway and railway automatic transfer vehicle in ocean port
Autorzy:
Dong, L.
Liu, G.
Ye, X.
Wang, W.
Powiązania:
https://bibliotekanauki.pl/articles/962741.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ocean port
multimodal transport
highway and railway
unmanned automatic
seamless connection
Opis:
To realize “seamless” connection of ocean port container multimodal transport, efficiently carry out “door-to-door” transport of ocean port containers and overcome the shortcomings of existing highway and railway vehicles, this study takes the standard for heavy-duty container vehicles in TB1335-1996 Railway Vehicle Strength Design and Test Identification Code as the design basis and designs a new ocean port container transport vehicle in combination with automatic guidance technology. This study innovatively designs the automatic lifting system of the bogie and the docking part of the vehicle, introduces the automatic guidance technology and the remote-control technology to optimize the car body structure, and uses the SAP software to carry out the finite element analysis of the car body load capacity and Flexsim software to carry out the simulation analysis on the operation of vehicles. The designed transfer vehicle can improve the transfer efficiency of ocean port containers, reduce the transit time of field and station equipment and container transport links, and improve the level of multimodal transport and comprehensive economic benefits.
Źródło:
Polish Maritime Research; 2018, S 3; 5-12
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uneven Integration and Blocked Spillovers: Why Environmental Governance in Northeast Asia does not Converged to the EU Model?
Niejednolita integracja i zablokowane skutki pośrednie:dlaczego zarządzanie środowiskiem w Azji Północno-Wschodniej nie jest zbieżne z modelem przyjętym w UE?
Autorzy:
Dong, L.
Powiązania:
https://bibliotekanauki.pl/articles/371236.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Komitet Człowiek i Środowisko PAN
Tematy:
EU
environmental governance
Northeast Asia
convergence
neo-functionalism
UE
zarządzanie środowiskowe
Azja Północno-Wschodnia
zbieżność
neofunkcjonalizm
Opis:
The EU environmental governance is recognized as an effective path to the management of regional environment. This model is based on rules, directives, top-bottom coordination and also in the characteristics of multi-level governance, which has become an example for various regions to imitate in the world. By contrast, environmental governance in Northeast Asia, equally with a strong demand in dynamic cooperation, failed to deal with the increasing environmental problems and it also doesn't converge to the EU environmental governance over the years. Instead, it established a non-binding cooperation in nature. The Northeast Asia model is a kind of cooperation lack of effectiveness, coordination between regional environmental regimes, without a stable financial arrangement for each cooperative initiative, mainly dominated by the governments, and also lacking of other actors involved in environmental issues. This model is caused by regional security tension which changes the cooperation preference overall, nations especially between China and Japan do not share political trust in high politics. This situation makes regional environmental governance to be a more independent area, with rarely high political interference and without spillover channels to other issues. Theoretically speaking, the Northeast Asia cooperation in environment is based on inter-governmental arrangements, thus, Neo-Functionalism’s spillover effects were significantly inhibited. That means to enhance environmental governance in Northeast Asia will mainly rely on intergovernmental push in the future.
Przyjęty w UE system zarządzania środowiskowego jest uznawany za efektywny sposób regionalnego zarządzania. Model ten oparty się na zasadach, dyrektywach i kompleksowej koordynacji, a także charakterystyce zarządzania wielopoziomowego, stał się wzorem dla różnych regionów świata. Jednak Azja Północno-Wschodnia, z silnym popytem charakterystycznym dla form dynamicznej współpracy, nie radzi sobie z coraz większymi problemami z zakresu ochrony środowiska i jest odległa od standardów UE. Funkcjonujące tu formy współpracy nie są wiążące. Model współpracy z Azji Północno-Wschodniej charakteryzuje się brakiem efektywności i kompatybilności pomiędzy poszczególnymi regionalnymi systemami ochrony środowiska, bez zapewnienia stabilnego finansowania dla podejmowanych inicjatyw, zdominowaniem przez rządy i brakiem innych podmiotów zaangażowanych w kwestie ochrony środowiska. Na ten model ma wpływ kryzys bezpieczeństwa, który objawia się w szczególny sposób we wzroście napięcia pomiędzy Chinami a Japonia. Ludzie nie darzą tu zaufaniem świata wielkiej polityki. Ta sytuacja sprawia, że regionalny zarządzania środowiskiem może być bardziej niezależny, stykać się z wielką polityką i bez skutków ubocznych odnoszących się do innych kwestii. Teoretycznie rzecz biorąc, współpraca Azji Północno-Wschodniej w zakresie ochrony środowiska opiera się na uzgodnieniach międzyrządowych, w ten sposób, neo-funkcjonalne skutki uboczne zostają znacząco ograniczone. Oznacza to, że także w przyszłości w celu poprawienia zarządzania środowiskowego w Azji Północno-Wschodniej Azji uzgodnienia międzyrządowe będą kluczowym czynnikiem.
Źródło:
Problemy Ekorozwoju; 2015, 10, 1; 15-20
1895-6912
Pojawia się w:
Problemy Ekorozwoju
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of organic cultivation pattern on tomato production: plant growth characteristics, quality, disease resistance, and soil physical and chemical properties
Autorzy:
Feng, X.
Xu, Y.
Liu, D.
Peng, L.
Dong, J.
Yao, S.
Feng, Y.
Feng, Z.
Li, F.
Hu, B.
Powiązania:
https://bibliotekanauki.pl/articles/12703546.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Tomato (Solanum lycopersicum L.) is one of the world’s most important cultivated vegetable. In the traditional cultivation methods, the excessive use of pesticides and fertilizers leads to an imbalance of nutrient elements in the soil, an increase in pests and diseases and a decrease in vegetable quality and yield. In the face of increasingly serious environmental and food problems, organic agriculture is considered to be an effective solution. In this experiment, the effects of organic cultivation patterns on the growth, quality, disease resistance in tomatoes, and the physical and chemical properties of soil were studied by different treatments. The results showed that the application of effective microorganisms (EM) bio-organic fertilizer in the cultivation process can significantly improve the yield, quality, and antioxidant enzyme activity of tomato. The use of straw mulching was found to significantly increase the growth, chlorophyll content, transpiration rate, and soluble sugar content of tomatoes. The application of EM bio-organic fertilizer or straw mulching significantly increased the activity of antioxidant enzyme and the expression of LeCHI gene in tomato leaves and enhanced tomato resistance to diseases. Organic production practices were found to significantly improve the soil.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 1; 71-84
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Do We Understand Magnetic Properties of ZnMnO?
Autorzy:
Godlewski, M.
Wójcik, A.
Kopalko, K.
Ivanov, V. Yu.
Wilamowski, Z.
Jakieła, R.
Guziewicz, E.
Szczepanik, A.
Dłużewski, P.
Chikoidze, E.
Barjon, J.
Dumont, Y.
Putkonen, M.
Niinistö, L.
Tang, Dong
Powiązania:
https://bibliotekanauki.pl/articles/2047644.pdf
Data publikacji:
2007-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Gh
75.75.+a
78.30.Fs
78.60.Hk
Opis:
Optical and magnetic properties of ZnMnO films are discussed based on the results of cathodoluminescence, photoluminescence, and magneto-photoluminescence investigations. We show that photoluminescence/cathodoluminescence emissions are strongly quenched and become in-plane inhomogeneous in samples with increased Mn fractions. Strong polarization of photoluminescence is observed, even though excitonic lines do not shift and are not split at magnetic fields up to 6 T.
Źródło:
Acta Physica Polonica A; 2007, 112, 2; 261-267
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving Triggering Characteristics for a Surface-Flashover Triggered Vacuum Switch
Autorzy:
He, Z.
Wang, L.
Li, F.
Yao, W.
Dong, M.
Zhao, C.
Powiązania:
https://bibliotekanauki.pl/articles/1807889.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.80.Vp
52.75.Kq
52.25.Mq
Opis:
A surface-breakdown triggered vacuum switch with parallel disk electrodes and semiconductor surface flashover trigger electrode has many advantages, it is easy to be triggered and machined. The resistance of the trigger gap has been increased in terms of modifying the thickness of the semiconductor layer and improving coating process technology. The trigger gap resistance, trigger voltage and trigger waveforms were experimentally tested. The results show that the triggering characteristics can be improved by increasing the trigger resistance.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1019-1021
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Nb Content on the Thermal, Structural, and Magnetic Properties of FeNbB Ribbons
Autorzy:
Hua, Z.
Zuo, B.
Li, M.
Wang, X.
Wang, L.
Liu, J.
Wang, D.
Dong, L.
Powiązania:
https://bibliotekanauki.pl/articles/1365063.pdf
Data publikacji:
2014-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
65.60.+a
61.43.Dq
Opis:
Amorphous $Fe_{80-x}Nb_{x}B_{20}$ (x = 5, 10, 15) ribbons were prepared by single-roller melt spinning method. The thermal, structural and magnetic properties of $Fe_{80-x}Nb_{x}B_{20}$ (x = 5, 10, 15) ribbons were investigated using differential thermal analysis, X-ray diffraction, and vibrating sample magnetometer. The thermal stability is the lowest for $Fe_{70}Nb_{10}B_{20}$ ribbon and the highest for $Fe_{65}Nb_{15}B_{20}$ ribbon. Along with the increase of Nb content, the supercooled liquid region Δ $T_{x}$ increases, indicating that the amorphous formation ability improves. The primary stages of crystallization of the three ribbons are different. The primary devitrification phases are $Fe_{23}B_6$ type for $Fe_{70}Nb_{10}B_{20}$ and $Fe_{75}Nb_5B_{20}$ ribbons, and α-Fe type for $Fe_{65}Nb_{15}B_{20}$ ribbon. $Fe_{80-x}Nb_{x}B_{20}$ (x = 5, 10) ribbons are ferromagnetic and the $Fe_{65}Nb_{15}B_{20}$ ribbon is paramagnetic. The saturation magnetization ($M_{s}$) decreases with increasing Nb content.
Źródło:
Acta Physica Polonica A; 2014, 125, 5; 1149-1151
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mixing characteristics of the subarctic front in the Kuroshio-Oyashio confluence region
Autorzy:
Ke-Lan, Z.
Xi, C.
Ke-Feng, M.
Dong, H.
Sen, H.
Yan, L.
Powiązania:
https://bibliotekanauki.pl/articles/49009.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Subarctic Front
Kuroshio-Oyashio confluence region
sea surface temperature
salinity
topography
geostrophic flow
thermohaline
structural characteristics
turbulent mixing
Źródło:
Oceanologia; 2019, 61, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantum-inspired particle swarm optimization algorithm with performance evaluation of fused images
Autorzy:
Le, Z
Xinman, Z.
Xuebin, X
Dong, W.
Jie, L.
Yang, L.
Powiązania:
https://bibliotekanauki.pl/articles/174501.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
multifocus image fusion
quantum particle swarm optimization
perfect reconstruction
superior speed
Opis:
In order to improve and accelerate the speed of image integration, an optimal and intelligent method for multi-focus image fusion is presented in this paper. Based on particle swarm optimization and quantum theory, quantum particle swarm optimization (QPSO) intelligent search strategy is introduced in salience analysis of a contrast visual masking system, combined with the segmentation technique. The superiority of QPSO is quantum parallelism. It has stronger search ability and quicker convergence speed. When compared with other classical or novel fusion methods, several metrics for image definition are exploited to evaluate the performance of all the adopted methods objectively. Experiments are performed on both artificial multi-focus images and digital camera multi-focus images. The results show that QPSO algorithm is more efficient than non-subsampled contourlet transform, genetic algorithm, binary particle swarm optimization, etc. The simulation results demonstrate that QPSO is a satisfying image fusion method with high accuracy and high speed.
Źródło:
Optica Applicata; 2013, 43, 4; 679-691
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Path following control of the underactuated USV based on the improved line-of-sight guidance algorithm
Autorzy:
Liu, T.
Dong, Z.
Du, H.
Song, L.
Mao, Y.
Powiązania:
https://bibliotekanauki.pl/articles/259559.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
unmanned surface vessel (USV)
path following control
Serret-Frenet coordinate frame
underactuated system
improved lineof-sight guidance algorithm
nonlinear backstepping method
Opis:
The path following control problem of the underactuated unmanned surface vessel (USV) is studied in this paper. An improved line-of-sight (LOS) guidance algorithm is proposed which can adjust adaptively based on the path following error. The global asymptotically stable path following controller is designed based on the nonlinear backstepping method and the Lyapunov stability theory. Firstly, the USV path following error model is established in the Serret-Frenet (SF) coordinate frame. The path following error in the inertial coordinate frame is transformed into the SF coordinate frame, which is used to define the path following control problem. Secondly, inspired by the traditional LOS guidance algorithm, the longitudinal path following error in the SF coordinate frame is introduced into the improved LOS guidance algorithm. This allows the algorithm to adjust adaptively to the desired path. Thirdly, in order to solve the underactuated problem of the USV path following control system, the tangential velocity of the desired path is designed as a virtual input. The underactuated problem is converted to a virtual fully actuated problem by designing the virtual control law for the tangential velocity. Finally, by combining backstepping design principles and the Lyapunov stability theory, the longitudinal thrust control law and the yaw torque control law are designed for the underactuated USV. Meanwhile, the global asymptotic stability of the path following error is proved. Simulation experiments demonstrate the effectiveness and reliability of the improved LOS guidance algorithm and the path following controller.
Źródło:
Polish Maritime Research; 2017, 1; 3-11
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Communication atmosphere in humans and robots interaction based on the concept of fuzzy atmosfield generated by emotional states of humans and robots
Autorzy:
Liu, Z. T.
Chen, L. F.
Dong, F. Y.
Hirota, K.
Min, W.
Li, D. Y.
Yamazaki, Y.
Powiązania:
https://bibliotekanauki.pl/articles/384920.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
human-robot interaction
communication atmosphere
fuzzy logic
emotion recognition
Opis:
Communication atmosphere based on emotional states of humans and robots is modeled by using Fuzzy Atmosfield (FA), where the human emotion is estimated from bimodal communication cues (i.e., speech and gesture) using weighted fusion and fuzzy logic, and the robot emotion is generated by emotional expression synthesis. It makes possible to quantitatively express overall affective expression of individuals, and helps to facilitate smooth communication in humans-robots interaction. Experiments in a household environment are performed by four humans and five eye robots, where emotion recognition of humans based on bimodal cues achieves 84% accuracy in average, improved by about 10% compared to that using only speech. Experimental results from the model of communication atmosphere based on the FA are evaluated by comparing with questionnaire surveys, from which the maximum error of 0.25 and the minimum correlation coefficient of 0.72 for three axes in the FA confirm the validity of the proposal. In ongoing work, an atmosphere representation system is being planned for casual communication between humans and robots, taking into account multiple emotional modalities such as speech, gesture, and music.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2013, 7, 2; 52-63
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analytical solution for dynamic response of water barrier subjected to strong shock waves caused by an underwater explosion to dams
Autorzy:
Lu, L.
Zou, D.
Zhu, Y.
Dong, Y.
Zuo, C.
Wu, Y.
Powiązania:
https://bibliotekanauki.pl/articles/260289.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
underwater explosion
shock wave
dam
analytical solution
dynamic response
Opis:
Shock waves arriving at a dam site are close to plane waves when the center of an underwater explosion is far from the dam site. In general, the wave pressure is calculated with COLE empirical formula. The COLE formula is a negative exponential function with respect to time. In this paper, a new analytical solution algorithm is proposed, which does not require the use of step-by-step time integration. In Comparison with the step-by-step time integration, the proposed algorithm requires relatively less calculation and avoids high-frequency oscillation. Furthermore, the vertical upstream surface and the sloping upstream surface in two types of the dams are analyzed in this paper. The research results indicate that the analytical solution can be applied for a dam with a vertical upstream surface. However, because the upstream face of a dam is inclined, the analytical solution can be obtained only for dams that are at lower height. Whenever the height of a dam is higher, then no analytical solution can be obtained, and only the use of step-by-step time integration can obtain a solution.
Źródło:
Polish Maritime Research; 2017, S 2; 111-117
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heading control system design for a micro-USV based on an adaptive expert S-PID algorithm
Autorzy:
Miao, R.
Dong, Z.
Wan, L.
Zeng, J.
Powiązania:
https://bibliotekanauki.pl/articles/258606.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
micro unmanned surface vessel (micro-USV)
control system design
adaptive expert S-PID algorithm
heading control
pool experiment
lake experiment
Opis:
The process of heading control system design for a kind of micro-unmanned surface vessel (micro-USV) is addressed in this paper and a novel adaptive expert S-PID algorithm is proposed. First, a motion control system for the micro-USV is designed based on STM32-ARM and the PC monitoring system is developed based on Labwindows/CVI. Second, by combining the expert control technology, S plane and PID control algorithms, an adaptive expert S-PID control algorithm is proposed for heading control of the micro-USV. Third, based on SL micro-USV developed in this paper, a large number of pool experiments and lake experiments are carried out, to verify the effectiveness and reliability of the motion control system designed and the heading control algorithm proposed. A great amount of comparative experiment results shows the superiority of the proposed adaptive expert S-PID algorithm in terms of heading control of the SL micro-USV.
Źródło:
Polish Maritime Research; 2018, 2; 6-13
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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