Results 1 to 10 of about 132 (113)

Analysis on Multistable Motion Characteristics of Supercavitating Vehicle [PDF]

open access: yesShock and Vibration, 2017
Due to complex underwater environment, when the initial condition of launching is subjected to low external disturbance, the motion trace of a supercavitating vehicle might display many different motion states during underwater navigation.
Tianhong Xiong, Yipin Lv, Wenjun Yi
doaj   +3 more sources

Drag reduction of a rapid vehicle in supercavitating flow

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2017
Supercavitation is one of the most attractive technologies to achieve high speed for underwater vehicles. However, the multiphase flow with high-speed around the supercavitating vehicle (SCV) is difficult to simulate accurately.
D. Yang, Y.L. Xiong, X.F. Guo
doaj   +4 more sources

Dynamics of supercavitating vehicles with cone cavitators

open access: yesMechanics and Advanced Technologies, 2022
The work is devoted to theoretical and experimental investigations of dynamics of high-speed underwater supercavitating vehicles with cone cavitators. The cone cavitators are considered as operating controls of the supercavitating vehicle motion.
Володимир Семененко   +3 more
doaj   +5 more sources

Robustness of Supercavitating Vehicles Based on Multistability Analysis [PDF]

open access: yesAdvances in Mathematical Physics, 2017
Supercavity can increase speed of underwater vehicles greatly. However, external interferences always lead to instability of vehicles. This paper focuses on robustness of supercavitating vehicles. Based on a 4-dimensional dynamic model, the existence of multistability is verified in supercavitating system through simulation, and the robustness of ...
Yipin Lv   +3 more
openaire   +3 more sources

Design Methodology of Conical Section Shape for Supercavitating Vehicles considering Auto-Oscillation Characteristics

open access: yesComplexity, 2020
Due to the complexity of the cavity/vehicle and oscillation characteristics, streamlined shape integrated design of conventional fully wetted vehicles is not suitable for supercavitating vehicles. In this paper, a set of design criteria is highlighted to
Daijin Li   +4 more
doaj   +2 more sources

Nonlinear Vibration and Control of Underwater Supercavitating Vehicles

open access: yesIEEE Access, 2018
When a supercavitating vehicle navigates underwater at a high speed, most of the surface is wrapped by cavity. With the influences of the system parameters and launching state, the nonlinear oscillation of the vehicle always occurs because of the ...
Tianhong Xiong, Yipin Lv, Wenjun Yi
doaj   +2 more sources

Research on the Numerical Simulation of the Nonlinear Dynamics of a Supercavitating Vehicle

open access: yesShock and Vibration, 2016
Little is known about the movement characteristics of the supercavitating vehicle navigating underwater. In this paper, based on a four-dimensional dynamical system of this vehicle, its complicated dynamical behaviors were analyzed in detail by numerical
Tianhong Xiong   +3 more
doaj   +2 more sources

Integrated dynamics modeling for supercavitating vehicle systems

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2015
We have performed integrated dynamics modeling for a supercavitating vehicle. A 6-DOF equation of motion was constructed by defining the forces and moments acting on the supercavitating body surface that contacted water.
Seonhong Kim, Nakwan Kim
doaj   +3 more sources

Dynamics modeling and motion control for high-speed underwater vehicles using H-infinity synthesis with anti-windup compensator

open access: yesJournal of Ocean Engineering and Science, 2022
The control synthesis of a high-speed supercavitating vehicle (HSSV) faces many difficulties such as the stability, control, and maneuvering with dynamical uncertainties due to parameter perturbations, external disturbances, unmodeled dynamics ...
Phuc Duc Hong Bui   +3 more
doaj   +2 more sources

Anti-windup design for supercavitating vehicle based on sliding mode control combined with RBF network

open access: yesAdvances in Mechanical Engineering
During the longitudinal motion of a supercavitating vehicle, the stability control problem is complicated because of the nonlinear planing force on the tail part.
Xinhua Zhao, Shangze Chen, Kang Wang
doaj   +2 more sources

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