Underwater vehicle

Constructing the methodology for synthesizing navigation algorithm and motion control algorithm for underwater vehicles equipped platform or strapdown inertial navigation system during independent motion (Autonomous).

28p beloveinhouse10 28-11-2021 10 2   Download

Báo báo này trình bày nghiên cứu về ảnh hưởng của hình dáng của thiết bị lặn không người lái ROV(Remotely Operated Underwater Vehicles) đến lực cản tổng thể. Thiết bị không người lái được sử dụng nhiều trong các lĩnh vực khảo sát, giám sát, nghiên cứu ngầm dưới mặt nước. Đối với thiết bị ROV, lực cản sẽ quyết định đến việc lựa chọn động cơ đẩy và nguồn dự trữ năng lượng tiệu thụ. Từ đó quyết định cho thời gian hoạt động liên tục dưới nước của ROV.

8p parasite 02-06-2021 26 3   Download

The article presents the problem associated with the influence of seawaves on the working depth of a towed underwater vehicle (TUV) including: defining transfer function (TF) of the towing cable - underwater vehicle system; analyzing the sea-wave’s features, modeling and defining the TF of filter which forms the sea-waves; estimating the TFs of the system (TC - UV) and researching the influence of sea-waves to the TUV’s working depth in the time domain.

10p thithizone 16-07-2019 16 1   Download

This paper presents an improved method based on the jacobian matrix and the error feedback. By using this method, the accuracy of the solution of inverse kinematics for the vehicle-manipulator system is improved. In addition, one of the advantages of a redundant system is exploited to avoid impact on joint limitations. Numerical simulations in software Matlab are carried out to verify the efficiencies of the proposed method.

12p thienthanquydu 17-10-2018 25 1   Download

Finally, real time simulations are presented to validate the interaction between the ROV operator and the VR model. To provide realistic operational conditions, the effects of sensor noise and water current disturbances are included to the simulation programme. The results show that the performance of the VR ROV is stable even with these disturbances.

11p dieutringuyen 07-06-2017 37 2   Download

This paper presents the numerical simulation of a recently developed Remotely Operated Vehicle (ROV) utilising theoretical and experimental work to obtain the vehicle’s hydrodynamic characteristics and a LabVIEW based numerical model to predict its behaviour.

14p dieutringuyen 07-06-2017 38 1   Download

Autonomous underwater vehicle – a robot!Flies by changing its buoyancy – takes on water, becomes heavy and sinks – wings turn vertical motion into forward motion – expels water, becomes light and rises – flies saw tooth pattern through the ocean – from the surface to 3 m off bottom (200 m max)

34p thachthaoxanh 24-08-2011 53 5   Download