Article
Engineering, Mechanical
Yuan Shen, Bo Tian, Shao-Hua Liu, Tian-Yu Zhou
Summary: In this paper, we investigate a (3+1)-dimensional shallow water wave equation with time-dependent coefficients and obtain various solutions and their associated nonlinear phenomena using the Hirota method and symbolic computation.
NONLINEAR DYNAMICS
(2022)
Article
Thermodynamics
M. Sheikholeslami, M. Jafaryar
Summary: The turbulent flow of nanomaterial (a mixture of CNT and water) within a circular tube of a solar system absorber was numerically simulated in this article. The tube was equipped with a complex swirl flow device to enhance fluid-wall interaction and achieve warmer fluid. Ten mirrors were used to concentrate solar radiation, and the geometric parameters were calculated to optimize optical performance. The simulation employed a K-epsilon model based on the finite volume method. The results showed that increasing the CNT fraction improved thermal performance, and changing the pitch ratio and flow rate had significant effects on friction factor and convective factor.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Engineering, Civil
Pham Van Vinh, Abdelouahed Tounsi
Summary: This paper investigates the free vibration of functionally graded doubly curved nanoshells using nonlocal first order shear deformation theory, and the frequencies are obtained via Navier's solution technique. The effects of various parameters on the vibration response are also studied.
THIN-WALLED STRUCTURES
(2022)
Review
Thermodynamics
Jacob W. Martin, Maurin Salamanca, Markus Kraft
Summary: This review discusses the formation of carbonaceous nanoparticles from gas-phase molecules in hydrocarbon flames, highlighting both their useful applications and negative impacts as pollutants. Advances in experimental techniques have allowed for the direct observation of gas phase precursors and the transformation into nanoparticles over the past decade. Questions remain regarding the mechanisms leading to nanoparticle formation, with physically stabilised soot inception proposed as a potential middle ground combining physical and chemical routes.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2022)
Article
Engineering, Mechanical
Yuying Yang, Min Yang, Changhe Li, Runze Li, Zafar Said, Hafiz Muhammad Ali, Shubham Sharma
Summary: Micro-grinding is an important step in most surgical operations, but technical challenges such as insufficient cooling capacity, poor visibility, and high grinding temperature have hindered its progress. To address these issues, a new micro-grinding process called ultrasonic vibration-assisted nanoparticle jet mist cooling (U-NJMC) is proposed, combining the advantages of ultrasonic vibration and nanoparticle jet mist cooling. The combined effect of U-NJMC on cooling has been investigated and compared to other grinding methods. Results show that U-NJMC significantly reduces grinding force, friction coefficient, specific grinding energy, and grinding temperature, making it a promising approach for clinical surgical micro-grinding of biological bone.
FRONTIERS OF MECHANICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Lucas C. Brito, Gian Antonio Susto, Jorge N. Brito, Marcus A. Duarte
Summary: This paper introduces a new approach for fault detection and diagnosis in rotating machinery, which includes feature extraction, fault detection, and fault diagnosis. Fault detection is achieved through vibration feature extraction and anomaly detection algorithms, while fault diagnosis is performed using the SHAP technique for interpretation of black-box models.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Computer Science, Interdisciplinary Applications
Pham Van Vinh, Abdelouahed Tounsi
Summary: This study investigates the impact of the spatial variation of nonlocal parameters on the free vibration of functionally graded sandwich nanoplates. By modifying classical nonlocal elasticity theory, the research highlights the importance of considering the dependency of nonlocal parameters on material variations through the thickness of the nanoplates. Numerical results confirm the significant role of nonlocal parameter variations in the free vibration of functionally graded sandwich nanoplates, providing insights not previously explored in literature.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Assad Ayub, Zulqurnain Sabir, Gilder Cieza Altamirano, R. Sadat, Mohamed R. Ali
Summary: This study analyzes the melting heat transport of blood with iron nanoparticles, converting PDEs into a set of ODEs and calculating the solution through RK 4 method and Keller-Box scheme. The results highlight the importance of iron oxide nanoparticles in the biomedical field.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Xi Liang, Zhennao Cai, Mingjing Wang, Xuehua Zhao, Huiling Chen, Chengye Li
Summary: This study proposes an improved sine-cosine algorithm (SCA) for global optimization tasks, called chaotic oppositional SCA (COSCA), which strengthens the exploration and exploitation capability of the basic SCA by utilizing chaotic local search strategy and opposition-based learning strategy. Simulation experiments show that COSCA significantly improves the global optimization ability and outperforms other algorithms, and it also effectively solves complex engineering problems with constraints.
ENGINEERING WITH COMPUTERS
(2022)
Article
Engineering, Mechanical
Guijian Xiao, Benqiang Chen, Shaochuan Li, Xiaoqin Zhuo
Summary: This study focuses on grinding of aero-engine blades, proposes a life prediction algorithm considering residual stress, validates the effectiveness of the method through experiments and simulations, and presents a residual stress equivalent calibration method.
ENGINEERING FAILURE ANALYSIS
(2022)
Review
Thermodynamics
Saman Rashidi, Nader Karimi, Bengt Sunden, Kyung Chun Kim, Abdul Ghani Olabi, Omid Mahian
Summary: Electrochemical systems can only achieve optimal performance within a narrow temperature range, and thermal management is crucial for the design and operation of these systems. While significant efforts have been made in cooling technologies for battery systems, heat transfer in other electrochemical systems commonly used for energy conversion and storage has not been critically reviewed.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2022)
Review
Engineering, Mechanical
Ke Feng, J. C. Ji, Qing Ni, Michael Beer
Summary: Vibration analysis is widely used to monitor the operating condition of rotating machinery, but its application in gear wear analysis is limited. This review aims to fill this research gap by studying the relationship between gear surface features and vibration characteristics, and summarizing the current progress in vibration-based gear wear monitoring.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Thermodynamics
Sercan Yalcin, Satyam Panchal, Munur Sacit Herdem
Summary: Accurately estimating battery voltage and heat generation rate is crucial for safe and efficient operations of electric vehicles. This study proposes a novel scheme combining convolutional neural network and artificial bee colony algorithm for estimating HGR and voltage. The proposed model dynamically reveals hidden features in the data and uses new objective and fitness functions to optimize the estimates.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Engineering, Mechanical
Qin Zhou, Tianyi Wang, Anjan Biswas, Wenjun Liu
Summary: The all-optical logic device is a key component in all-optical communication and computing systems. This paper investigates all-optical logic devices using optical solitons, presenting three-soliton solutions and discussing the conditions for their formation and performance. The results have theoretical significance for the application of these devices.
NONLINEAR DYNAMICS
(2022)
Article
Automation & Control Systems
Wei Zhang, Xiang Li
Summary: This article proposes a federated transfer learning method for fault diagnosis, which enhances data privacy by using different models among different users, and addresses the domain shift and data privacy issues through federated initialization, federated communication, and prediction consistency scheme.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2022)
Article
Thermodynamics
Kexin Huang, Bo Su, Tong Li, Hanbing Ke, Mei Lin, Qiuwang Wang
Summary: Thermal stratification is the main cause of thermal fatigue failure in rectangular T-junctions. By setting an impeller with a constant rotation speed, the mixing behavior of hot and cold fluids can be improved, and various flow patterns including wall jet, deflecting jet, and impinging jet can be observed. The relationship between mixing length and blade diameter is not monotonic, and the optimal operating point is around D-p* = 0.5 for impellers with 2 blades.
APPLIED THERMAL ENGINEERING
(2022)
Article
Engineering, Mechanical
Yifei Ding, Minping Jia, Qiuhua Miao, Yudong Cao
Summary: This paper introduces a novel time-frequency Transformer model to address the shortcomings of traditional models, demonstrating superior fault diagnosis performance in comparison with benchmark models and other state-of-the-art methods.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Computer Science, Interdisciplinary Applications
Mohamad W. Zaitoun, Abdelbaki Chikh, Abdelouahed Tounsi, Alfarabi Sharif, Mohammed A. Al-Osta, Salah U. Al-Dulaijan, Mesfer M. Al-Zahrani
Summary: This paper presents the solution for the free vibrational response of a functionally graded sandwich plate on a viscoelastic foundation under a hygrothermal environment load. The study shows that increasing the damping coefficient of the viscoelastic foundation enhances the plate's free vibrational response, with the degree of enhancement influenced by the hygrothermal environment.
ENGINEERING WITH COMPUTERS
(2023)
Article
Engineering, Civil
Li-min Tian, Mu-han Li, Lei Li, Dong-ye Li, Chong Bai
Summary: This study focuses on improving the collapse resistance of steel frame structures by welding corrugated steel plates between the flange of I-shaped beams and the column to create reinforced joints. The collapse resistance tests were conducted on the novel reinforced joints with welded and bolt-welded connections. The study analyzes the effects of the circular arc length, thickness, and central angle of the corrugated plates on the collapse resistance and proposes design recommendations. The results show that the reinforced joints significantly improve the bearing capacities and ductility of the steel frame structures without compromising their seismic behavior.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Mechanical
G. L. Golewski
Summary: This paper presents a comparative study on the fracture toughness and crack propagation of concretes made with quaternary binders. The use of mineral additives in combination with nanosilica as a partial replacement of ordinary Portland cement binder is proposed. The tests conducted aimed to assess the mechanical parameters, fracture toughness, and fracture processes of the concretes. The results showed that modifying the binder composition with three pozzolanic active materials increased the mechanical parameters compared to control concrete. Additionally, as the content of fly ash increased, the concrete became more ductile and exhibited less brittle failure. The composite with 80% OPC, 5% FA, 10% SF, and 5% nS showed high fracture toughness and lower brittleness, making it suitable for reinforced concrete structures subjected to dynamic or cyclic loads.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2022)
