Results 1 to 10 of about 7,605 (116)

Trajectory Tracking Control for Subsea Mining Vehicles Based on Fuzzy PID Optimised by Genetic Algorithms [PDF]

Sensors
In deep-sea mining operations, the seabed sediments (mud and sand) are very soft and slippery. This often causes tracked vehicles to slip and veer off course when they are driving on the seafloor.
Henan Bu, Menglong Wu, Bo Liu, Zhuwen Yan   +3 more
doaj   +2 more sources

Simplified method for analyzing soil slope deformation under cyclic loading

Journal of Rock Mechanics and Geotechnical Engineering, 2022
Reasonable assessment of slope deformation under cyclic loading is of great significance for securing the safety of slopes. The observations of centrifuge model tests are analyzed on the slope deformation behavior under cyclic loading conditions.
Ga Zhang, Yaliang Wang, Fangyue Luo
doaj   +1 more source

The characteristics of strike-slip faults and their control on hydrocarbon distribution in deep carbonate reservoirs of the central Sichuan Basin

Frontiers in Earth Science, 2023
The past decade has witnessed a breakthrough in the gas exploration of deep marine carbonates of the central Sichuan Basin. Deep faults research has also attracted increasing attention, as faulting plays an important role in reservoir control.
Shangzi Liang, Shangzi Liang, Zhong Li, Zhong Li, Wang Zhang, Yang Gao   +5 more
doaj   +1 more source

Determination Rule for α, β Directions and φ in Teaching of Slip-Line Theory

Modelling and Simulation in Engineering, 2023
In the teaching of plastic mechanics and applications of slip-line theory using conventional methods, multivalued results are usually caused by the uncertain direction of the slip line and dip angles.
Ruibin Mei, Li Bao, Han Gao, Xin Zhang
doaj   +1 more source

Critical Study on the Tube-to-Chip Luer Slip Connectors

Frontiers in Medical Technology, 2022
Luer slip is one of the gold standards for chip-to-world interface in microfluidics. They have outstanding mechanical and operational robustness in a broad range of applications using water and solvent-based liquids.
Leire Etxeberria, Leire Etxeberria, Leire Etxeberria, Unai Aguilera, Pablo Garcia de Madinabeitia, Alberto Saez, Ane M. Zaldua, José L. Vilas-Vilela, José L. Vilas-Vilela, Luis Fernández, Andreu Llobera   +10 more
doaj   +1 more source

Evading the strength-ductility trade-off dilemma in steel-nickel heterostructured material by bionic crossed-lamellar structures

Virtual and Physical Prototyping, 2023
Despite the limitations imposed by their composition, natural materials overcome the trade-off between strength and ductility through their unique structural features.
Xingran Li, Qiang Li, Minghao Nie, Deyin Kong, Zhenglin Liu, Zhihui Zhang   +5 more
doaj   +1 more source

Numerical Modeling of an Elastic Spherical Contact under Combined Normal and Tangential Loading

Revue Nature et Technologie, 2023
The Contact between two surfaces with normal and tangential force involve friction dissipation phenomenon .The friction phenomenon can be formulated as a constitutive relation in a similar form to that of the elasto-plastic constitutive equation of ...
Ali OUZERIAT, Mohand OUD OUALI , Merzak ZEROUK   +2 more
doaj   +6 more sources

Stick-slip stabilization in oil well drill-strings via optimal hybrid fractional order fuzzy logic control scheme

Journal of Low Frequency Noise, Vibration and Active Control, 2023
Stick-slip vibration is regarded as one of the major factors that negatively influence the efficiency of the drilling processes. Therefore, it would be highly preferable to overcome the stick-slip vibration challenge through an effective control scheme ...
Billel Talbi, Abdelbaset Laib, Mohamed Gharib   +2 more
doaj   +1 more source

Optimum design of SRC composite beams [PDF]

International Journal for Simulation and Multidisciplinary Design Optimization, 2008
Based on experimental study of bond-slip behaviours between steel shape and concrete, an optimal design scheme of single objective and discrete variables is proposed to design steel reinforced concrete (SRC) frame beams.
Zheng Shan-Suo, Zeng Lei, Zhang Wei-Hong, Zheng Jie, Li Lei, Wang Bin   +5 more
doaj   +1 more source

Determining the Resource of Safe Operation for Objects by Images [PDF]

E3S Web of Conferences, 2020
In this paper, a systematic study of the microstructure damage process of metals and alloys was carried out. The main elements of the microstructure surface image, as well as the rules for the formation and interaction of rough slip traces and cracks to ...
Andreev Vyacheslav, Andreeva Olga, Gai Vasiliy, Berberova Maria   +3 more
doaj   +1 more source