Experimental Study on Pitching Motion Mode of a SWATH-USV

Zhang Wenxuan; Yu Yongqiang; Gao Shasha; Yang Songlin; Cheng Zhanyuan

doi:doi:10.11648/j.ijtet.20180402.14

| Peer-Reviewed

Experimental Study on Pitching Motion Mode of a SWATH-USV

Zhang Wenxuan, Yu Yongqiang, Gao Shasha, Yang Songlin, Cheng Zhanyuan

Published in International Journal of Transportation Engineering and Technology (Volume 4, Issue 2)

Received: 26 December 2018 Published: 27 December 2018

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

The importance of the research about ship motion model has become more prominent with the improvement of economic level. Mastering ship motion model is a necessary basis for studying ship's divisibility. The hydrodynamic parameters obtained by parameter identification methods are more precise, which is dissimilar from the parameters obtained by classical methods. In this paper, a SWATH-USV was taken as the research object to accomplish a series of pitch decay tests on the condition that the SWATH-USV was in different drafts and tilts angles in the hydrostatic state. And a mathematical model by the method of system identification based on genetic algorithms has been established, adopting VB language to program a systematic identification software. With this, the author obtained the pitch motion differential equations, and the changing regularities of hydrodynamic coefficients with draft and initial tilt angle of the model in different drafts and initial tilt angles and their kinematic equation. Using this equation to predict, the results are proved to be well matched with the experimental results. And the feasibility of the identification method is also confirmed. The analysis results and methods can provide essential technical support for the in-depth analysis of the wave resistance and the design of the boat.

Published in	International Journal of Transportation Engineering and Technology (Volume 4, Issue 2)
DOI	10.11648/j.ijtet.20180402.14
Page(s)	43-49
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

SWATH-USV, Pitching Motion Mode, System Identification, Genetic Algorithms

References

[1]	Fan Wu, Zhijian Chen, Jubin Liu, Yansong Lv. Hydrodynamic calculation of SWATH in waves [J]. Ship Engineering, 2004.
[2]	Jie Ma. A comparative study of AR method and multilayer hierarchical method for ship pitch motion prediction [M]. Proceedings of China intelligent automation conference in 2009 (volume 2), 2009.
[3]	Lee C M, CURPHEY R M. Prediction of motion, stability, and wave load of small-waterplane-area twin-hull ships [J]. Trans, SNAME, 1977, (85): 94- 130.
[4]	Feng Zhu, Songlin Yang. A preliminary study on the system identification methods of pitch and heave motion of a composite trimara [J], 2014.
[5]	Heng Zhang, Jide Li, Xiaodong Zhao. The nonlinear motion response of ship is solved based on system identification method [J]. Journal of Dalian Maritime University, 2008.
[6]	Baohua Wang. Research on the prediction and control strategy of SWATH [D]. Harbin Engineering University, 2013.
[7]	Zhu Hong. Study on the nonlinear dynamic characteristics of ship under the crosswise rolling coupling [D]. Jiangsu University of Science and Technology, 2016.
[8]	D Dumitru, Numerical investigation of a two - degrees - of - freedom ship model for pitch - roll motion [C], IOP Conference Series: 10.1088/1757-899X/145/8/082007,2016.
[9]	Jun Zhu, Kunlun Huang, Liushuai Cao. Response model of velocity oscillations to ship pitch and heave coupled motions [J]. Journal of Naval University of Engineering, 2012.
[10]	Wenqiang Shi, Xianzhao Yu. Development status and trend of SWATH abroad [J]. Ship Science and Technology, 2012.
[11]	Bowen Shi. Prediction of ship wave resistance based on real wave spectrum and CFD [D]. Dalian Maritime University, 2016.
[12]	Kui Ye. Research on anti-pitch control method of ship rudder [D]. Harbin Engineering University, 2004.
[13]	Ping Cheng, Yong Ai, Decheng Wan. Unsteady hydrodynamic simulation of a floating offshore wind turbine with oscillating pitch motion [M]. Proceedings of the second global Chinese hydrodynamics academic conference (next volume), 2016.

Cite This Article

Plain Text BibTeX RIS

APA Style

Zhang Wenxuan, Yu Yongqiang, Gao Shasha, Yang Songlin, Cheng Zhanyuan. (2018). Experimental Study on Pitching Motion Mode of a SWATH-USV. International Journal of Transportation Engineering and Technology, 4(2), 43-49. https://doi.org/10.11648/j.ijtet.20180402.14

Copy | Download

ACS Style

Zhang Wenxuan; Yu Yongqiang; Gao Shasha; Yang Songlin; Cheng Zhanyuan. Experimental Study on Pitching Motion Mode of a SWATH-USV. Int. J. Transp. Eng. Technol. 2018, 4(2), 43-49. doi: 10.11648/j.ijtet.20180402.14

Copy | Download

AMA Style

Zhang Wenxuan, Yu Yongqiang, Gao Shasha, Yang Songlin, Cheng Zhanyuan. Experimental Study on Pitching Motion Mode of a SWATH-USV. Int J Transp Eng Technol. 2018;4(2):43-49. doi: 10.11648/j.ijtet.20180402.14

Copy | Download

@article{10.11648/j.ijtet.20180402.14,
  author = {Zhang Wenxuan and Yu Yongqiang and Gao Shasha and Yang Songlin and Cheng Zhanyuan},
  title = {Experimental Study on Pitching Motion Mode of a SWATH-USV},
  journal = {International Journal of Transportation Engineering and Technology},
  volume = {4},
  number = {2},
  pages = {43-49},
  doi = {10.11648/j.ijtet.20180402.14},
  url = {https://doi.org/10.11648/j.ijtet.20180402.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijtet.20180402.14},
  abstract = {The importance of the research about ship motion model has become more prominent with the improvement of economic level. Mastering ship motion model is a necessary basis for studying ship's divisibility. The hydrodynamic parameters obtained by parameter identification methods are more precise, which is dissimilar from the parameters obtained by classical methods. In this paper, a SWATH-USV was taken as the research object to accomplish a series of pitch decay tests on the condition that the SWATH-USV was in different drafts and tilts angles in the hydrostatic state. And a mathematical model by the method of system identification based on genetic algorithms has been established, adopting VB language to program a systematic identification software. With this, the author obtained the pitch motion differential equations, and the changing regularities of hydrodynamic coefficients with draft and initial tilt angle of the model in different drafts and initial tilt angles and their kinematic equation. Using this equation to predict, the results are proved to be well matched with the experimental results. And the feasibility of the identification method is also confirmed. The analysis results and methods can provide essential technical support for the in-depth analysis of the wave resistance and the design of the boat.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Experimental Study on Pitching Motion Mode of a SWATH-USV
AU  - Zhang Wenxuan
AU  - Yu Yongqiang
AU  - Gao Shasha
AU  - Yang Songlin
AU  - Cheng Zhanyuan
Y1  - 2018/12/27
PY  - 2018
N1  - https://doi.org/10.11648/j.ijtet.20180402.14
DO  - 10.11648/j.ijtet.20180402.14
T2  - International Journal of Transportation Engineering and Technology
JF  - International Journal of Transportation Engineering and Technology
JO  - International Journal of Transportation Engineering and Technology
SP  - 43
EP  - 49
PB  - Science Publishing Group
SN  - 2575-1751
UR  - https://doi.org/10.11648/j.ijtet.20180402.14
AB  - The importance of the research about ship motion model has become more prominent with the improvement of economic level. Mastering ship motion model is a necessary basis for studying ship's divisibility. The hydrodynamic parameters obtained by parameter identification methods are more precise, which is dissimilar from the parameters obtained by classical methods. In this paper, a SWATH-USV was taken as the research object to accomplish a series of pitch decay tests on the condition that the SWATH-USV was in different drafts and tilts angles in the hydrostatic state. And a mathematical model by the method of system identification based on genetic algorithms has been established, adopting VB language to program a systematic identification software. With this, the author obtained the pitch motion differential equations, and the changing regularities of hydrodynamic coefficients with draft and initial tilt angle of the model in different drafts and initial tilt angles and their kinematic equation. Using this equation to predict, the results are proved to be well matched with the experimental results. And the feasibility of the identification method is also confirmed. The analysis results and methods can provide essential technical support for the in-depth analysis of the wave resistance and the design of the boat.
VL  - 4
IS  - 2
ER  -

Copy | Download

Author Information

Zhang Wenxuan

School of Naval Architecture & Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Yu Yongqiang

School of Naval Architecture & Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Gao Shasha

School of Naval Architecture & Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Yang Songlin

School of Naval Architecture & Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Cheng Zhanyuan

School of Naval Architecture & Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, China

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Zhang Wenxuan, Yu Yongqiang, Gao Shasha, Yang Songlin, Cheng Zhanyuan. (2018). Experimental Study on Pitching Motion Mode of a SWATH-USV. International Journal of Transportation Engineering and Technology, 4(2), 43-49. https://doi.org/10.11648/j.ijtet.20180402.14

Copy | Download

ACS Style

Zhang Wenxuan; Yu Yongqiang; Gao Shasha; Yang Songlin; Cheng Zhanyuan. Experimental Study on Pitching Motion Mode of a SWATH-USV. Int. J. Transp. Eng. Technol. 2018, 4(2), 43-49. doi: 10.11648/j.ijtet.20180402.14

Copy | Download

AMA Style

Zhang Wenxuan, Yu Yongqiang, Gao Shasha, Yang Songlin, Cheng Zhanyuan. Experimental Study on Pitching Motion Mode of a SWATH-USV. Int J Transp Eng Technol. 2018;4(2):43-49. doi: 10.11648/j.ijtet.20180402.14

Copy | Download

@article{10.11648/j.ijtet.20180402.14,
  author = {Zhang Wenxuan and Yu Yongqiang and Gao Shasha and Yang Songlin and Cheng Zhanyuan},
  title = {Experimental Study on Pitching Motion Mode of a SWATH-USV},
  journal = {International Journal of Transportation Engineering and Technology},
  volume = {4},
  number = {2},
  pages = {43-49},
  doi = {10.11648/j.ijtet.20180402.14},
  url = {https://doi.org/10.11648/j.ijtet.20180402.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijtet.20180402.14},
  abstract = {The importance of the research about ship motion model has become more prominent with the improvement of economic level. Mastering ship motion model is a necessary basis for studying ship's divisibility. The hydrodynamic parameters obtained by parameter identification methods are more precise, which is dissimilar from the parameters obtained by classical methods. In this paper, a SWATH-USV was taken as the research object to accomplish a series of pitch decay tests on the condition that the SWATH-USV was in different drafts and tilts angles in the hydrostatic state. And a mathematical model by the method of system identification based on genetic algorithms has been established, adopting VB language to program a systematic identification software. With this, the author obtained the pitch motion differential equations, and the changing regularities of hydrodynamic coefficients with draft and initial tilt angle of the model in different drafts and initial tilt angles and their kinematic equation. Using this equation to predict, the results are proved to be well matched with the experimental results. And the feasibility of the identification method is also confirmed. The analysis results and methods can provide essential technical support for the in-depth analysis of the wave resistance and the design of the boat.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Experimental Study on Pitching Motion Mode of a SWATH-USV
AU  - Zhang Wenxuan
AU  - Yu Yongqiang
AU  - Gao Shasha
AU  - Yang Songlin
AU  - Cheng Zhanyuan
Y1  - 2018/12/27
PY  - 2018
N1  - https://doi.org/10.11648/j.ijtet.20180402.14
DO  - 10.11648/j.ijtet.20180402.14
T2  - International Journal of Transportation Engineering and Technology
JF  - International Journal of Transportation Engineering and Technology
JO  - International Journal of Transportation Engineering and Technology
SP  - 43
EP  - 49
PB  - Science Publishing Group
SN  - 2575-1751
UR  - https://doi.org/10.11648/j.ijtet.20180402.14
AB  - The importance of the research about ship motion model has become more prominent with the improvement of economic level. Mastering ship motion model is a necessary basis for studying ship's divisibility. The hydrodynamic parameters obtained by parameter identification methods are more precise, which is dissimilar from the parameters obtained by classical methods. In this paper, a SWATH-USV was taken as the research object to accomplish a series of pitch decay tests on the condition that the SWATH-USV was in different drafts and tilts angles in the hydrostatic state. And a mathematical model by the method of system identification based on genetic algorithms has been established, adopting VB language to program a systematic identification software. With this, the author obtained the pitch motion differential equations, and the changing regularities of hydrodynamic coefficients with draft and initial tilt angle of the model in different drafts and initial tilt angles and their kinematic equation. Using this equation to predict, the results are proved to be well matched with the experimental results. And the feasibility of the identification method is also confirmed. The analysis results and methods can provide essential technical support for the in-depth analysis of the wave resistance and the design of the boat.
VL  - 4
IS  - 2
ER  -

Copy | Download