Computing free motion of floating structures by pole-residue operations

2021 ◽  
Vol 109 ◽  
pp. 102558
Author(s):  
Jinwei Sun ◽  
Sau-Lon James Hu ◽  
Huajun Li
Keyword(s):  
Free Motion ◽  
Floating Structures ◽  
Pole Residue

Specificity of preparation for production for construction of composite and reinforced concrete floating structures

2015 ◽  
Vol 0 (2) ◽  
Author(s):  
Alexandr S. Rashkovskyi ◽  
Alexandr V. Shchedrolosiev ◽  
Natalia V. Tsykalo
Keyword(s):  
Reinforced Concrete ◽  
Floating Structures

Collision-free motion planning for the litchi-picking robot

2021 ◽  
Vol 185 ◽  
pp. 106151
Author(s):  
Lei Ye ◽  
Jieli Duan ◽  
Zhou Yang ◽  
Xiangjun Zou ◽  
Mingyou Chen ◽  
...  
Keyword(s):  
Motion Planning ◽  
Free Motion

scholarly journals Time-Domain Studies of General Dispersive Anisotropic Media by the Complex-Conjugate Pole–Residue Pairs Model

2021 ◽  
Vol 11 (9) ◽  
pp. 3844
Author(s):  
Konstantinos P. Prokopidis ◽  
Dimitrios C. Zografopoulos
Keyword(s):  
Time Domain ◽  
Electromagnetic Wave Propagation ◽  
Frequency Dispersion ◽  
Magnetized Plasma ◽  
Dispersive Media ◽  
Complex Conjugate ◽  
Pole Residue ◽  
Permittivity And Permeability ◽  
Arbitrary Frequency ◽  
Difference Time

A novel finite-difference time-domain formulation for the modeling of general anisotropic dispersive media is introduced in this work. The method accounts for fully anisotropic electric or magnetic materials with all elements of the permittivity and permeability tensors being non-zero. In addition, each element shows an arbitrary frequency dispersion described by the complex-conjugate pole–residue pairs model. The efficiency of the technique is demonstrated in benchmark numerical examples involving electromagnetic wave propagation through magnetized plasma, nematic liquid crystals and ferrites.

A Phenomenological Model for Vortex-Induced Motions of the Monocolumn Platform and Comparison With Experiments

2009 ◽  
Author(s):  
Guilherme F. Rosetti ◽  
Rodolfo T. Gonc¸alves ◽  
Andre´ L. C. Fujarra ◽  
Kazuo Nishimoto ◽  
Marcos D. Ferreira
Keyword(s):  
Time Domain ◽  
Phenomenological Model ◽  
Structural Model ◽  
Design Phase ◽  
Van Der Pol ◽  
Floating Structures ◽  
Towing Tank ◽  
Wake Oscillator ◽  
Two Degree Of Freedom ◽  
Comparison With Experiments

Vortex-Induced Motions (VIM) of floating structures is a very relevant subject for the design of mooring and riser systems. In the design phase, Spar VIM behavior as well as Semi Submersible and Tension Leg Platform (TLP) flow-induced motions are studied and evaluated. This paper discusses flow-induced behavior on the Monocolumn concept by presenting a phenomenological model and comparing its results with a set of experiments that took place in the IPT Towing Tank - Brazil (September 2008). The experimental results have shown some fundamental differences from previous VIM tests on other units such as Spars. This numerical model attempts to identify these disparities in order to better understand the mechanics of this phenomenon. The model is based on a time-domain, two degree-of-freedom structural model coupled with a van der Pol type wake oscillator. The comparison was performed in order to calibrate the model, to study and better understand the tests results, and finally to identify important aspects to investigate in further experiments.

DF-Mose : Device-Free Motion Sensing with Wireless Backscattering

2019 ◽  
Author(s):  
Ning Xiao ◽  
Panlong Yang ◽  
Yubo Yan ◽  
Hao Zhou ◽  
Jiahui Hou ◽  
...  
Keyword(s):  
Free Motion ◽  
Motion Sensing ◽  
Device Free
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