Blar i NTNU Open på forfatter "Xu, Jiafeng"
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Dual Quaternion Variational Integrator for Rigid Body Dynamic Simulation
Xu, Jiafeng; Halse, Karl Henning (Research report, 2016)In rigid body dynamic simulations, often the algorithm is required to deal with general situations where both reference point and inertia matrix are arbitrarily de- fined. We introduce a novel Lie group variational integrator ... -
Dynamic Simulation and Control of an Active Roll Reduction System Using Free-Flooding Tanks With Vacuum Pumps
Xu, Jiafeng; Ren, Zhengru; Li, Yue; Skjetne, Roger; Halse, Karl Henning (Journal article; Peer reviewed, 2018)Ship roll motion is critical for offshore operations due to its lack of damping mechanism. This paper demonstrates a dynamic simulation scheme of an active roll reduction system using free-flooding tanks controlled by ... -
Dynamic Simulation and Control of an Active Roll Reduction System Using Free-Flooding Tanks With Vacuum Pumps
Xu, Jiafeng; Ren, Zhengru; Li, Yue; Skjetne, Roger; Halse, Karl Henning (Chapter; Peer reviewed, 2017)Ship roll motion is often the critical factor for offshore operations due to its lack of damping mechanism. This paper demonstrates a dynamic simulation scheme of an active roll reduction system using free-flooding tanks ... -
Sloshing flows in a free surface anti roll tank - Numerical simulations and experimental validation
Li, Yue; Halse, Karl Henning; Xu, Jiafeng (Chapter, 2016)Anti-roll tanks are tanks fitted onto ships in order to improve their response to roll motion, which has typically the largest amplitude among all the degrees of freedom. This paper presents a comparative study of a Volume ... -
Virtual Prototyping of a Low-Height Lifting System for Offshore Wind Turbine Installation
Xu, Jiafeng; Ataei, Behfar; Halse, Karl Henning; Hildre, Hans Petter; mikalsen, egil tennfjord (Chapter, 2020)Due to the ever higher demands from the energy market, the quantity, dimension and power capacity of newly installed offshore wind turbines are continuously increasing. In terms of logistical management, economic feasibility ...