Overview and analysis on recent research and challenges of dropped objects in offshore engineering
With an increasing number of offshore operations taking place at sea, the occurrence of
dropped objects has become more widespread and frequent. These incidents can result in a …
dropped objects has become more widespread and frequent. These incidents can result in a …
A survey on population-based meta-heuristic algorithms for motion planning of aircraft
Y Wu - Swarm and Evolutionary Computation, 2021 - Elsevier
Meta-heuristic algorithms have turned out to be good methods to address optimization
problems with complicated constraints, and those algorithms have been widely applied to …
problems with complicated constraints, and those algorithms have been widely applied to …
3D trajectory optimization of the slender body freely falling through water using cuckoo search algorithm
The problem of trajectory optimization of underwater slender bodies is commonly
encountered during offshore operations such as deploying the anchor into seabed at the …
encountered during offshore operations such as deploying the anchor into seabed at the …
[HTML][HTML] Experimental study on the trajectory of projectile water entry with asymmetric nose shape
Y Shi, Y Hua, G Pan - Physics of Fluids, 2020 - pubs.aip.org
In this study, we investigated the water entry trajectory characteristics of a projectile with an
asymmetric nose shape at different initial impact velocities and impact angles …
asymmetric nose shape at different initial impact velocities and impact angles …
Trajectory planning for hybrid unmanned aerial underwater vehicles with smooth media transition
In the last decade, a great effort has been employed in the study of Hybrid Unmanned Aerial
Underwater Vehicles, robots that can easily fly and dive into the water with different levels of …
Underwater Vehicles, robots that can easily fly and dive into the water with different levels of …
Attitude and altitude control of unmanned aerial-underwater vehicle based on incremental nonlinear dynamic inversion
G Chen, A Liu, J Hu, J Feng, Z Ma - IEEE Access, 2020 - ieeexplore.ieee.org
A vehicle able to navigate both in the air and underwater is referred to an unmanned aerial-
underwater vehicle (UAUV). Aiming at the attitude and altitude control of UAUVs, an …
underwater vehicle (UAUV). Aiming at the attitude and altitude control of UAUVs, an …
Fixed-time attitude control for aircraft with strongly constrained actuators
Z Liu, Z Meng - Aerospace Science and Technology, 2023 - Elsevier
This paper investigates a novel fixed-time attitude control method for trans-medium aircraft to
ensure proper contact between the fuselage and the new medium before transmitting from …
ensure proper contact between the fuselage and the new medium before transmitting from …
Numerical investigation of the water-entry impact performance of a bionic unmanned aerial-underwater vehicle
W Gan, J Zhuang, Y Zhang, Z Zuo, J Xiang - Ocean Engineering, 2024 - Elsevier
Numerical investigation of the water-entry impact performance of a bionic unmanned aerial–
underwater vehicle (UAUV) is performed. According to the modified SST turbulent model …
underwater vehicle (UAUV) is performed. According to the modified SST turbulent model …
Mathematical modeling of the oblique water-entry of cylindrical projectiles
Water-entry is the process in which a moving body with an initial velocity impacts the free
surface and enters the water from the air and has many important applications in different …
surface and enters the water from the air and has many important applications in different …
Water entry impact dynamics of diving birds
SI Sharker, S Holekamp, MM Mansoor… - Bioinspiration & …, 2019 - iopscience.iop.org
Some seabirds (such as northern gannets and brown boobies) can dive from heights as
high as 30 m reaching speeds of up to 24 ms− 1 as they impact the water surface. The …
high as 30 m reaching speeds of up to 24 ms− 1 as they impact the water surface. The …