PARAMETRIC IDENTIFICATION OF SHIP MODEL BY SYMMETRIC MOTIONS AROUND ROLL ANGLE WITH TAUTWIRE REFERENCE POSITION SENSOR
Annotation
The paper presents a new method of identifying the parameters of the ship model using symmetric motions. The subject of research is the improvement of the parameter identification accuracy under the condition of complete uncertainty of mathematical models of the ship hull and reaction wheel device, as well as the development of a new position reference sensor for ship models in the form of a tautwire inclinometer. Small symmetric reversing accelerating-decelerating program motions about roll angle were used, while the model of the vessel was fixed in the test basin and the movement in other degrees of freedom was excluded. To create the programmed motions, an electric motor with a flywheel mounted on the vessel was used. The control system has been developed as an application of a hybrid adaptive controller consisting of a consecutive compensator and a sliding controller, and their parameters are adjusted taking into account the restriction on their maximum values. A new approach involves carrying out two experiments. During the main experiment, the program motions of the model occur about the roll angle, while the additional experiment involves programmed motions of the flywheel around the flywheel rotation angle. The program trajectory of the flywheel was obtained according to the results of the main experiment. Illustrative results are given showing the essence of the proposed method and the results of the control system with harmonic oscillation as a reference trajectory. The operating principle of the cable inclinometer is considered, and a brief overview of the existing technical solutions is presented concerning the part of the structure for the desired cable tension support. Calculation formulas are given determining the position of a vessel with a dynamic positioning system in the case of measuring angles in the cable inclinometer using potentiometers or accelerometers. The results can be useful when carrying out model tests or for full-scale vessels with dynamic positioning systems.
Keywords
Постоянный URL
Articles in current issue
- RESONANT AND NON-RESONANT INTERACTION OF SEMICONDUCTOR NANOCRYSTALS WITH LOCALIZED PLASMONS
- LIGHT PROPAGATION IN PLANAR TOTAL INTERNAL REFLECTION WAVEGUIDE WITH QUANTUM WELL
- DETECTION OF DIABETES MELLITUS TYPE II BY INFRARED SPECTROSCOPY AND MULTIVARIATE ANALYSIS
- MULTI-ROTOR UNMANNED AERIAL VEHICLE CONTROL SYSTEM BASED ON HYBRID NEUROREGULATOR
- STABILITY OF NONLINEAR DYNAMICAL SYSTEM MOTION UNDER CONSTANTLY ACTING PERTURBATIONS
- SPECTRAL AND LUMINESCENT PROPERTIES OF GLASSES DOPED WITH ERBIUM IONS BASED ON 98MgCaSrBaYAl2F14-2Ва(РО3)2
- THERMOELECTRIC COOLING MODULE WITH DAMPING CONDUCTOR ON COLD SPAYS
- COMPLEX RESEARCH OF E.coli VITAL ACTIVITY DYNAMICS IN PRESENCE OF TRANSITION METAL IONS
- CHEMICAL MECHANICAL POLISHING OF NONLINEAR OPTICAL ORGANIC CO-CRYSTALS BASED ON AMINOPYRIDINE SERIES
- MICROSTRUCTURE RESEARCH OF FLOAT-TYPE GYRO ROTORS BY SCANNING ELECTRON MICROSCOPE
- APPLICATION OF DIGITAL FACIAL ANTHROPOMETRY (Review paper)
- MODEL OF MULTI-LEVEL DATA STORAGE SYSTEM
- ORTHOGONAL NOISE-LIKE SIGNAL SYMBOLS FOR BROADBAND CHANNEL PROTECTION
- RATIONAL SELECTION OF WORK PERFORMERS FOR INFORMATION SYSTEM DESIGN PROJECTS
- CRITERIA FOR TEXT CONFORMITY TO SCIENTIFIC STYLE
- HIGH-LEVEL SYNTHESIS SYSTEM BASED ON HYBRID RECONFIGURABLE MICROARCHITECTURE
- CONTROL METHODS FOR UPPER EXTREMITY PROSTHESES
- SIGNAL FILTRATION ALGORITHMS FOR ULTRASONIC SENSORS IN OBSTACLE DETECTION DEVICES
- TRANSFER LEARNING FOR IMAGE CLASSIFICATION OF PRIMARY MORPHOLOGICAL ELEMENTS OF SKIN LESIONS
- RELATIVE ORDER OF SAMPLED LINEAR TIME-INVARIANT SYSTEMS
- STUDY OF ELECTROMAGNETIC TORQUE PULSATIONS IN PRECISION SERVO DRIVES WITH SINUSOIDAL PULSE-WIDTH MODULATION
- ULTRAVIOLET SPECTROPHOTOMETRIC METHOD AND WATER HYDROCARBON IMPURITY SENSOR
- HOLOGRAPHIC RECORDING IN PHOTOPOLYMERIZED NANOCOMPOSITE WITH DAST NANOCRYSTALS
- FLUORESCENCE ENHANCEMENT OF SCANDIUM COMPOUNDS WITH2-NAPHTHOYLTRIFLUOROACETONE IN WATER SOLUTION
- PROGRAM CODE OPTIMIZATION OF RELACY RACE DETECTOR LIBRARY