Nonparametric Identification of Nonlinear Added Mass Moment of Inertia and Damping Moment Characteristics of Large-Amplitude Ship Roll Motion

Pongduang, Sathit; Chungchoo, Chatchapol; Iamraksa, Phansak

doi:10.1007/s11804-020-00129-3

Cited by 4 publications

(4 citation statements)

References 27 publications

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“…Briefly, Pongdung's method [32] is chosen to determine non-linear functions because it able to find all non-linear functions in Equation 1 synchronously. The method needs measured motion data from free roll decay experiment or CFD (Computational fluid dynamics) to formulate inverse problem.…”

Section: Full Non-linear Gyro-stabilizer Modelmentioning

confidence: 99%

“…Finally, the zero-crossing detection technique of measured data is compared with that solution for identifying each moment function and reconstruction them. For more detail can see in Pongdung et al [32] .…”

Section: Full Non-linear Gyro-stabilizer Modelmentioning

confidence: 99%

“…The system identification methods of ship roll motion can be found in many papers such as Masri et al (1993) [24] , Chassiakos and Marsi (1996) [25] , Liang et al (1997) [26] , Liang et al (2001) [27] , Jang et al (2009) [28] , Jang et al (2010) [29] , Jang (2011) [30] and Jang et al (2011) [31] etc. However, in this paper uses method of Pongdung et al [32] which is the novel method and able to find all of non-linear terms of ship model.…”

Section: Introductionmentioning

confidence: 99%

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Non-linearity Analysis of Ship Roll Gyro-stabilizer Control System

2021

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A gyro-stabilizer is the interesting system that it can apply to marine vessels for diminishes roll motion. Today it has potentially light weight with no hydrodynamics drag and effective at zero forward speed. The twin-gyroscope was chosen. Almost, the modelling for designing the system use linear model that it might not comprehensive mission requirement such as high sea condition. The non-linearity analysis was proved by comparison the results between linear and non-linear model of gyro-stabilizer throughout frequency domain also same wave input, constrains and limitations. Moreover, they were cross checked by simulating in time domain. The comparison of interested of linear and non-linear close loop model in frequency domain has demonstrated the similar characteristics but gave different values at same frequency obviously. The results were confirmed again by simulation in irregular beam sea on time domain and they demonstrate the difference of behavior of both systems while the gyro-stabilizers are switching on and off. From the resulting analysis, the non-linear gyro-stabilizer model gives more real results that correspond to more accuracy in a designing gyro-stabilizer control system for various amplitudes and frequencies operating condition especially high sea condition.

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Section: Full Non-linear Gyro-stabilizer Modelmentioning

confidence: 99%

Section: Full Non-linear Gyro-stabilizer Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Non-linearity Analysis of Ship Roll Gyro-stabilizer Control System

2021

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“…Black-box modeling was used in He et al (2022), using neural network, and in Xue et al (2021), using gaussian process. The nonparametric models are related, where the system structure is known but no parameters are required as seen in Pongduang et al (2020). However, most of the system identification methods for ship manoeuvring models use the grey-box modeling by assuming a predefined mathematical model, which reduces the problem to a parameter estimation.…”

Section: Introductionmentioning

confidence: 99%