Article
Computer Science, Interdisciplinary Applications
Xiaoping Huang, Huadong Hao, Khaled Oslub, Mostafa Habibi, Abdelouahed Tounsi
Summary: The paper examines the vibrational and critical circular speed characteristics of a functionally graded rotary microdisk using the modified couple stress model, for the first time in the literature. The study utilizes the GDQ approach and variational method to derive and solve non-classical relations, and conducts a parametric analysis to explore the influences of various factors on the frequency of the micro-scaled disk. The results reveal significant effects from the rotation speed, beta factor, and radius ratio on the dynamic stability and frequency responses of the rotary FG microdisk.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Yue Liu, Wanqiu Wang, Tao He, Zohre Moradi, Myrian A. Larco Benitez
Summary: This research conducts a numerical investigation on the dynamics of an axisymmetric sandwich annular sector plate using higher-order continuum elasticity theory. Different thermal loadings are considered, and a parametric study is carried out to examine the impacts of various factors on the structure's dynamics. The results demonstrate the effects of temperature changes and geometric parameters on the natural frequency of the disk structure.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
M. S. H. Al-Furjan, Mostafa Habibi, Dong Won Jung, Seyedehfatemeh Sadeghi, Hamed Safarpour, Abdelouahed Tounsi, Guojin Chen
Summary: In this study, the characteristics of propagated waves in a sandwich structure with a soft core and multi-hybrid nanocomposite face sheets were investigated. The study found that the sensitivity of the phase velocity of the sandwich panel to carbon nanotubes (CNTs) and different face sheet patterns can decrease when the core of the panel is thicker. It was also observed that the effects of fiber angle and core to total thickness ratio on the phase velocity are independent of the wavenumber.
ENGINEERING WITH COMPUTERS
(2022)
Review
Thermodynamics
M. Hermesmann, T. E. Mueller
Summary: This paper reviews the current level of hydrogen production technology development and objectively compares the environmental impacts and benefits of different technologies based on a life cycle assessment. It provides recommendations for achieving environmentally friendly hydrogen production.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2022)
Article
Computer Science, Interdisciplinary Applications
Jianli Guo, Abdolrahim Baharvand, Diana Tazeddinova, Mostafa Habibi, Hamed Safarpour, Angel Roco-Videla, Abdellatif Selmi
Summary: This article explores the frequency performance of rotating multi-layer nanodisks using deep learning. The optimized neural network parameters contribute to the method's high accuracy and efficiency in training the multi-layered network. The study reveals the significant impact of various parameters on the vibration behavior of laminated rotating cantilevered nanodisks.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Caiyang Yu, Mengxiang Chen, Kai Cheng, Xuehua Zhao, Chao Ma, Fangjun Kuang, Huiling Chen
Summary: The SGOA, an improved grasshopper optimization algorithm combining simulated annealing mechanism with the original GOA, outperformed other algorithms in various fields and engineering problems. With promising results in benchmark function testing and engineering applications, SGOA proves to be effective in solving complex optimization problems.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Jinhui Wu, Mostafa Habibi
Summary: The research focuses on the vibrational and amplitude behaviors of a sandwich spinning disk with a graphene nanoplatelets reinforced composite core. High-order shear deformable theory is used to calculate stresses and strains, and a computational method called generalized differential quadrature method is employed to solve the structure's boundary conditions. Matlab programming is used to explain the disk's vibrations, while ABAQUS software is used for 3-D finite element simulations. The frequency response of the system is found to be better in smaller radius ratios.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Iraj Naruei, Farshid Keynia
Summary: Nowadays, optimization algorithms inspired by the natural behavior of agents, such as humans, animals, or plants, have become popular in solving various scientific problems. The wild horse optimizer algorithm is inspired by the social behavior of wild horses, particularly their decency behavior where foals leave groups to prevent mating with relatives. The proposed algorithm has shown competitive results compared to other optimization methods in testing.
ENGINEERING WITH COMPUTERS
(2022)
Article
Engineering, Manufacturing
Chen Li, Yinchuan Piao, Binbin Meng, Yuxiu Hu, Longqiu Li, Feihu Zhang
Summary: The study explores the deformation and removal mechanisms of gallium nitride (GaN) single crystals during ultra-precision machining. The experimental results show that abrasive size significantly affects the surface morphology and roughness, leading to a transition from brittle fracture-dominated surface to a plastic surface with reduced abrasive size. Through cross-sectional TEM method and MD simulation, it is found that plastic deformation in GaN crystals is caused by the formation of polycrystalline nanocrystals and defects, with an observable delamination phenomenon in the plastic deformation zone.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2022)
Article
Engineering, Civil
Mohamad W. Zaitoun, Abdelbaki Chikh, Abdelouahed Tounsi, Mohammed A. Al-Osta, Alfarabi Sharif, Salah U. Al-Dulaijan, Mesfer M. Al-Zahrani
Summary: This study investigates the buckling response of functionally graded sandwich plates on a viscoelastic foundation under hygrothermal conditions using higher-order shear deformation theory. An accurate solution is developed and a parametric study is conducted on the effect of damping coefficient, aspect ratio, moisture condition, power-law index, and temperature variation on the buckling temperature.
THIN-WALLED STRUCTURES
(2022)
Article
Computer Science, Interdisciplinary Applications
Hongwei Liu, ShiXin Shen, Khaled Oslub, Mostafa Habibi, Hamed Safarpour
Summary: This research investigates amplitude motion and frequency simulation of a thick annular microsystem with graphene nanoplatelets reinforcement using the modified couple stress theory (MCST). The Halpin-Tsai micromechanics model is employed to model the effective Young module, and the generalized differential quadrature method (GDQM) is used to obtain eigenvalues and eigenvectors of the microsystem. Results show that under certain conditions, the influence of length scale parameter on the amplitude and frequency of the microsystem can be ignored, and increasing the thickness of the graphene nanoplatelets decreases this influence on frequency.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
M. S. H. Al-Furjan, Mostafa Habibi, Jing Ni, Dong Won Jung, Abdelouahed Tounsi
Summary: This article discusses the frequency analysis of an imperfect honeycomb core sandwich disk with multiscale hybrid nanocomposite (MHC) face sheets. The study shows that the Winkler-Pasternak constant K-w has a greater impact on the stability of the structure, and the frequency of the system improves when the fiber angle is close to horizontal.
ENGINEERING WITH COMPUTERS
(2022)
Article
Automation & Control Systems
Yiming Xiao, Haidong Shao, SongYu Han, Zhiqiang Huo, Jiafu Wan
Summary: This article proposes a novel joint transfer network for unsupervised bearing fault diagnosis from the simulation domain to the experimental domain. It uses bearing simulation data to construct the source domain, an improved loss function to achieve alignment across domains, and a weight allocation mechanism to suppress negative transfer.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2022)
Article
Computer Science, Interdisciplinary Applications
Yu Bai, Bandar Alzahrani, Shahrizan Baharom, Mostafa Habibi
Summary: This composition investigates the frequency analysis of sandwich imperfect viscoelastic disks with graphene nano-platelets (GPLs)-reinforced viscoelastic composite (GPLRVC) face sheets and honeycomb core. A parametric study is conducted to examine the effects of various factors on the frequency of the structure.
ENGINEERING WITH COMPUTERS
(2022)
Review
Thermodynamics
Farzad Tohidi, Shahriyar Ghazanfari Holagh, Ata Chitsaz
Summary: Thermoelectric generators are advanced devices that could potentially address energy crisis and environmental issues, offering advantages including environmental friendliness, scalability, reliability, and long lifespan. However, their low conversion efficiency has hindered widespread application, currently primarily confined to academic research.
APPLIED THERMAL ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Haiqing Yang, Zhihui Wang, Kanglei Song
Summary: A new hybrid intelligence technique was introduced to predict the performance of the full-face tunnel boring machine (TBM). By measuring and considering the important parameters, a predictive model was established and evaluated. The results showed that the model had high accuracy in predicting the TBM performance.
ENGINEERING WITH COMPUTERS
(2022)
Review
Thermodynamics
Turgut M. Gur
Summary: Carbon capture and storage is essential for mitigating climate change, but the lack of cost-effective technologies to capture CO2 at large scales hinders progress. The diversity of emission sources highlights the need for a wide range of CCS technologies, materials, and processes to be developed.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2022)
Article
Computer Science, Interdisciplinary Applications
Hui Liu, Yao Zhao, Mohammad Pishbin, Mostafa Habibi, M-O Bashir, Alibek Issakhov
Summary: This study investigates the frequency simulation and critical angular velocity of a size-dependent laminated rotary microsystem using modified couple stress theory (MCST). Various factors affecting the system's frequency and rotating speed are explored, and the non-classical governing equations are solved using numerical methods.
ENGINEERING WITH COMPUTERS
(2022)
Article
Engineering, Mechanical
Qing Ni, J. C. Ji, Ke Feng, Benjamin Halkon
Summary: This study proposes a fault information-guided VMD (FIVMD) method for extracting weak bearing repetitive transients. By using statistical models and defining the fault characteristic amplitude ratio, the optimal decomposition parameters can be determined to successfully diagnose bearing faults.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Computer Science, Interdisciplinary Applications
Yuesong Li, Shunlei Li, Kunyi Guo, Xia Fang, Mostafa Habibi
Summary: This research investigates the bending responses of FG-GPLRC plates and identifies the factors that influence the bending characteristics. It is found that the number of GPLs used for reinforcement and the radius ratio have significant effects on the normal and shear stresses of the structure.
ENGINEERING WITH COMPUTERS
(2022)
