Article
Mining & Mineral Processing
Hamed Rafezi, Ferri Hassani
Summary: This paper presents a novel approach to investigate the relations between drilling signals and bit wear condition in real world full-scale mining operations. It addresses the need for automation in mining to increase efficiency, safety, and ability to work in harsh environments. The research introduces a qualitative method for tricone bit wear state classification and investigates the relations between drilling vibration, electric motor current signals, and bit wear, introducing bit failure frequencies.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Jing Wang, Xiaobin Cheng, Yan Gao, Xun Wang, Jun Yang
Summary: This article introduces the use of Ft-SNE for cutting condition monitoring, which can improve the performance of machine tool monitoring through optimization of classification performance and feature selection.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Chemistry, Physical
Hongfa Zhao, Mingrui Shu, Zihao Ai, Zirui Lou, Kit Wa Sou, Chengyue Lu, Yuchao Jin, Zihan Wang, Jiyu Wang, Changsheng Wu, Yidan Cao, Xiaomin Xu, Wenbo Ding
Summary: This study develops a highly sensitive self-powered vibration sensor based on the triboelectric nanogenerator. The sensor can detect low-amplitude vibrations over a wide frequency range and achieves high recognition accuracy in mechanical condition monitoring.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Aina Wang, Yingshun Li, Zhao Yao, Chongquan Zhong, Bin Xue, Zhannan Guo
Summary: This paper proposes an effective condition monitoring strategy for rotating machinery based on a hybrid method framework. The data points are preprocessed using variational mode decomposition and then the autoregressive moving average-artificial neural network model is used for prediction. The support vector machine classification model is applied to identify multiple condition patterns, and the effectiveness of the proposed method is verified through experiments.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Aerospace
Seyyed Reza Ghaffari-Razin, Amir Reza Moradi, Navid Hooshangi
Summary: A new method for spatio-temporal modeling of ionosphere total electron content (TEC) using least squares support vector machine (LS-SVM) is proposed. The method reduces computational complexity, improves convergence speed and accuracy, and shows better performance in seasonal error analysis.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Engineering, Multidisciplinary
Wenlong Zhang, Chen Li, Junxiao Jin, Xiaocheng Qu, Shuo Fan, Chongwei Xin
Summary: Innovative Monitoring-While-Drilling (MWD) technology using microseismic (MS) system to monitor vibration signals has shown great success in displaying LDD hole depth, drilling difficulty at different depths, and reflecting stress state. Measurement of coal vibration events also helps reveal the degree of pressure relief, providing valuable insights for drilling depth supervision, abutment pressure distribution, and pressure relief effect evaluation.
Article
Engineering, Multidisciplinary
Wenlong Zhang, Chen Li, Junxiao Jin, Xiaocheng Qu, Shuo Fan, Chongwei Xin
Summary: Innovative Monitoring-While-Drilling (MWD) technology proposes using microseismic (MS) system to monitor vibration signals in Large Diameter Drilling (LDD) for effective stress state reflection and pressure relief evaluation.
Article
Engineering, Multidisciplinary
Wenlong Zhang, Chen Li, Junxiao Jin, Xiaocheng Qu, Shuo Fan, Chongwei Xin
Summary: By using innovative Monitoring-While-Drilling (MWD) technology with microseismic (MS) system, vibration signals can be monitored to display the actual depth of Large Diameter Drilling (LDD) holes, reflect stress state, and evaluate pressure relief effects.
Article
Chemistry, Multidisciplinary
Shuangting Hu, Zhihao Yuan, Ruonan Li, Zhi Cao, Hanlin Zhou, Zhiyi Wu, Zhong Lin Wang
Summary: This paper proposes a vibration-driven triboelectric nanogenerator (V-TENG) for vibration attenuation. The V-TENG is optimized in structure and frequency response range, exhibiting a simple design and good output performance. An energy management circuit is utilized to improve charging efficiency, and the simulation environment validates the vibration attenuation effect and wireless transmission system.
Review
Computer Science, Interdisciplinary Applications
Rene Jaros, Radek Byrtus, Jakub Dohnal, Lukas Danys, Jan Baros, Jiri Koziorek, Petr Zmij, Radek Martinek
Summary: This research article provides a comprehensive overview of condition monitoring techniques for induction motors (IM) and advanced signal processing techniques. The comparison shows that Wavelet Transform (WT) along with Empirical Mode Decomposition (EMD), Principal Component Analysis (PCA), and Park's Vector Approach (PVA) yield the most interesting results for real deployment.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Mostafa Karimpour, Sara Moridpour
Summary: The quality of track and speed are found to have a significant impact on tram vibration. Various experiments and measurements in similar settings are necessary to evaluate the influence of these factors on vibration. The use of smartphone built-in sensors for data acquisition is deemed as an effective method for investigating the effects of speed on vibration.
IEEE INTELLIGENT TRANSPORTATION SYSTEMS MAGAZINE
(2021)
Article
Automation & Control Systems
Dong Wang, Zheng Li, Shuai Tian, Tao Li
Summary: LTUV (longitudinal-torsional ultrasonic vibration) induces rapid changes in cutting speed, resulting in a sharp cutting edge and reduced drilling force. Experimental studies have shown that LTUV drilling yields superior hole quality compared to conventional drilling of CFRP/Ti-alloy stacks. This research establishes a dynamic model and derives prediction models for the thrust force and torque of the drill bit during LTUV drilling, verifying its reliability through drilling experiments. The study highlights the importance of the drill bit's ultrasonic vibration and its dependence on vibration and geometric parameters, with drilling parameters having minimal effect.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Computer Science, Artificial Intelligence
Aoxue Yang, Min Wu, Jie Hu, Luefeng Chen, Chengda Lu, Weihua Cao
Summary: The quality of data during drilling process influences the reliability of condition monitoring results. Different kinds of abnormal data encountered need to be handled differently. This paper proposes a method for discriminating and correcting abnormal data in the drilling process, which involves using an anomaly detection algorithm, dynamic time warping, fuzzy c-means, and k nearest neighbor interpolation for correcting abnormal data caused by external factors. Simulation results show that causes of anomalies can be effectively discriminated, and monitoring results improve after applying the method.
Article
Chemistry, Analytical
Zheng Wu, Wen-Long Zhang, Chen Li
Summary: An innovative monitoring-while-drilling method of pressure relief drilling was proposed to automatically identify the amplitude concentrated enlargement zone. A neural network model based on single-sensor and multi-sensor prediction results was introduced, which significantly improved the accuracy. In addition, an optimization method was applied to eliminate misjudgment caused by data anomalies, further enhancing the final accuracy and providing a foundation for automatically identifying the drilling depth.
Article
Engineering, Mechanical
Nitin Nagesh Kulkarni, Nicholas A. Valente, Alessandro Sabato
Summary: This study proposes a robust time-inferred autoencoder (TIA) framework for denoising optical data while preserving the system's spatio-temporal characteristics. Compared to existing methods, TIA achieves better accuracy in extracting spatio-temporal characteristics and offers more flexibility and automation than total variation denoising.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Energy & Fuels
B. Prabakaran, P. Vijayabalan, M. Balachandar
Summary: Researchers investigated the potential of diesel ethanol blends as an alternative fuel for diesel engines, but found their performance to be inferior to diesel. This study aims to identify the optimal engine operating parameters for a blend of 45% ethanol and 10% butanol as co-solvent. Experimental tests were conducted on a diesel engine by varying injection timing, nozzle opening pressure, and compression ratio. The results showed that the blend had higher brake thermal efficiency and increased oxides of emissions compared to standard parameters, although the emissions of CO and HC were slightly higher than diesel.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Engineering, Mechanical
S. Kanthasamy, T. S. Ravikumar
Summary: This study focuses on the synthesis of Magnesium based alloy AZ31 using Magnesia Packed Sintering (MPS), a novel approach in powder metallurgy. The purpose is to optimize the process parameters and eliminate the need for protective gases to prevent oxidation. The MPS method, which involves packing magnesia powder around the green compact, proves to be an effective alternative for atmospheric protection in fabricating magnesium based alloys and composites. The Taguchi method integrated with GRA is employed for parameter optimization, and various tests and analyses are conducted to confirm the improved strength and hardness achieved through the optimized parameters.
AUSTRALIAN JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Y. Carlin Calaph, K. Manikanda Subramanian, R. S. Nakandhrakumar, M. Sowrirajan
Summary: This study investigates the performance evaluation of cutting tool inserts with different coating thicknesses in turning EN24 steel. It was found that inserts with coating thicknesses of 5-8 μm had longer tool life and reduced wear.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Mathematics, Applied
G. Kirithiga Nandini, Sandi Klavzar
Summary: In this paper, flaws in the computations of eccentricity indices reported by Imran et al. in their series of papers are demonstrated. Corrected formulas, which are also simplified in many cases, are obtained.
JOURNAL OF DISCRETE MATHEMATICAL SCIENCES & CRYPTOGRAPHY
(2023)
Article
Materials Science, Composites
A. Ganesh Babu, S. S. Saravanakumar, M. A. Sai Balaji
Summary: This study prepared biofilms using rice hull powder, polyvinyl alcohol, and silver nanoparticles, and characterized them through various testing methods. The results showed that the biofilms have the potential for packaging applications.
POLYMER COMPOSITES
(2022)
Article
Engineering, Mechanical
A. Eakambaram, M. A. Sai Balaji, Baskara P. Sethupathi
Summary: The purpose of friction material is to decelerate a vehicle by transforming kinetic energy into heat. Coating steel fibers with sulfides improves wear resistance and consistent friction coefficient.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Article
Engineering, Mechanical
M. A. Sai Balaji, Katiyar Jitendra, Eakambaram Arumugam, Baskara P. Sethupathi
Summary: Friction materials are crucial for the safe operation of automobiles and the protection of human life. The validation of new brake pads incurs significant costs and the rising prices of raw materials, as well as the shift towards electric vehicles, pose challenges for friction material manufacturers. Brake pad wear is a major contributor to non-exhaust emissions, and the silent nature of electric vehicles amplifies noise and vibration issues with brake pads.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Susan Chacko, R. Sumathi, M. K. Badri Narayanan, Syam S. Narayanan
Summary: This paper investigates the challenges faced by food franchises in the Chennai region of India. Through interviews with company executives, academicians, and researchers, nine key challenges are identified, with government regulatory measures and ecosystem being identified as the most challenging factor.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
R. Devanathan, B. Vivekanandan, S. Rengadurai, G. L. Balaji, R. Lakshmipathy
Summary: The present investigation explored the utilization of watermelon rind as an adsorbent for the removal and recovery of Ce (III) and Pr (III) ions from aqueous solution. The processed watermelon rind exhibited high adsorption capacity for Ce (III) and Pr (III) ions, which can be described by Langmuir and Freundlich isotherms and pseudo second order kinetic model. The system showed spontaneous and exothermic nature, and the watermelon rind can be reused.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
G. Jayanthi, Sowrirajan Sumathi, V Andal
Summary: This review highlights the significance of adsorption as an alternative method for removing heavy metals in water pollution, with a focus on the use of Perovskite as an adsorbent and the factors influencing the adsorption process.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
S. Nalini Jayanthi, N. Bhuvaneswari
Summary: In this study, single crystals of L-threonine doped zinc tris thiourea sulphate were successfully grown using the slow evaporation technique. The crystalline nature, structural parameters, mechanical strength, and optical properties of the crystals were analyzed using various experimental methods.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Sumathi Sowrirajan, Gunjan Maheshwari, Baby Joseph
Summary: Zinc oxide synthesized by precipitation method was impregnated on alumina and characterized. The band gap of ZnO-Al2O3 sintered at 400 degrees C was found to be 3.35 eV. In the study on solar irradiation of Thymol blue, it was observed that the degradation efficiency of zinc oxide-alumina composite was higher than that of pure zinc oxide.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
P. Leon Dharmadurai, S. Vasanthaseelan, R. Bharathwaaj, Vijayakumar Dharmaraj, K. Gnanasekaran, D. Balaji, Ravishankar Sathyamurthy
Summary: This study experimentally investigates the effect of a solar dryer with an external reflector on reducing moisture content in grapes. The results show that using an external reflector on the solar dryer decreases drying time and increases drying temperature compared to open solar drying.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Ravishankar Sathyamurthy, Mohammad Sahil Salman, P. Vijayabalan, S. Padmanaba Sundar, Vijayakumar Dharmaraj
Summary: In this experimental investigation, the use of neat plastic oil with nano-additives in a DI CI engine was studied. The combustion characteristics and emission parameters were compared with neat diesel fuel. The results showed that the addition of nano-additives improved in-cylinder pressure and ignition delay, while significantly reducing CO and HC emissions.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Amala Jeya Ranchani, V. Parthasarathy, R. Anbarasan
Summary: The prepared Zn anchored aminoclay was tested for its catalytic performance in reducing hazardous pollutants. The structure of the Zn-AC catalyst system was confirmed and investigated using various analytical methods, and the efficiency of the catalyst was assessed.
MATERIALS TODAY-PROCEEDINGS
(2022)
Article
Engineering, Multidisciplinary
Sicheng Jiao, Shixiang Wang, Minge Gao, Min Xu
Summary: This paper presents a non-contact method of thickness measurement for thin-walled rotary shell parts based on a chromatic confocal sensor. The method involves using a flip method to obtain surface profiles from both sides of the workpiece, measuring the decentration and tilt errors of the workpiece using a centering system, establishing a unified reference coordinate system, reconstructing the external and internal surface profiles, and calculating the thickness. Experimental results show that the method can accurately measure the thickness of a sapphire spherical shell workpiece and is consistent with measurements of other materials.
Article
Engineering, Multidisciplinary
Rajeev Kumar, Sajal Agarwal, Sarika Pal, Alka Verma, Yogendra Kumar Prajapati
Summary: This study evaluated the performance of a CaF2-Ag-MXene-based surface plasmon resonance (SPR) sensor at different wavelengths. The results showed that the sensor achieved the maximum sensitivity at a wavelength of 532 nm, and higher sensitivities were obtained at shorter wavelengths at the expense of detection accuracy.
Article
Engineering, Multidisciplinary
Attilio Di Nisio, Gregorio Andria, Francesco Adamo, Daniel Lotano, Filippo Attivissimo
Summary: Capacitive sensing is a widely used technique for a variety of applications, including avionics. However, current industry standard Capacitive Level Sensors (CLSs) used in helicopters perform poorly in terms of sensitivity and dynamic characteristics. In this study, novel geometries were explored and three prototypes were built and tested. Experimental validation showed that the new design featuring a helicoidal slit along the external electrode of the cylindrical probe improved sensitivity, response time, and linearity.
Article
Engineering, Multidisciplinary
Kai Yang, Huiqin Wang, Ke Wang, Fengchen Chen
Summary: This paper proposes an effective measurement method for dynamic compaction construction based on time series model, which enables real-time monitoring and measurement of anomalies and important construction parameters through simulating motion state transformation and running time estimation.
Article
Engineering, Multidisciplinary
Hui Fu, Qinghua Song, Jixiang Gong, Liping Jiang, Zhanqiang Liu, Qiang Luan, Hongsheng Wang
Summary: An automatic detection and pixel-level quantification model based on joint Mask R-CNN and TransUNet is developed to accurately evaluate microcrack damage on the grinding surfaces of engineering ceramics. The model is effectively trained on actual micrograph image dataset using a joint training strategy. The proposed model achieves reliable automatic detection and fine segmentation of microcracks, and a skeleton-based quantification model is also proposed to provide comprehensive and precise measurements of microcrack size.
Review
Engineering, Multidisciplinary
Sang Yeob Kim, Da Yun Kwon, Arum Jang, Young K. Ju, Jong-Sub Lee, Seungkwan Hong
Summary: This paper reviews the categorization and applications of UAV sensors in forensic engineering, with a focus on geotechnical, structural, and water infrastructure fields. It discusses the advantages and disadvantages of sensors with different wavelengths and addresses the challenges of current UAV technology and recommendations for further research in forensic engineering.
Article
Engineering, Multidisciplinary
Anton Nunez-Seoane, Joaquin Martinez-Sanchez, Erik Rua, Pedro Arias
Summary: This article compares the use of Mobile Laser Scanners (MLS) and Aerial Laser Scanners (ALS) for digitizing the road environment and detecting road slopes. The study found that ALS data and its corresponding algorithm achieved better detection and delimitation results compared to MLS. Measuring the road from a terrestrial perspective negatively impacted the detection process, while an aerial perspective allowed for scanning of the entire slope structure.
Article
Engineering, Multidisciplinary
Nur Luqman Saleh, Aduwati Sali, Raja Syamsul Azmir Raja Abdullah, Sharifah M. Syed Ahmad, Jiun Terng Liew, Fazirulhisyam Hashim, Fairuz Abdullah, Nur Emileen Abdul Rashid
Summary: This study introduces an enhanced signal processing scheme for detecting mouth-click signals used by blind individuals. By utilizing additional band-pass filtering and other steps, the detection accuracy is improved. Experimental results using artificial signal data showed a 100% success rate in detecting obstacles. The emerging concepts in this research are expected to benefit radar and sonar system applications.
Article
Engineering, Multidisciplinary
Jiqiang Tang, Shengjie Qiu, Lu Zhang, Jinji Sun, Xinxiu Zhou
Summary: This paper studies the magnetic noise level of a compact high-performance magnetically shielded room (MSR) under different operational conditions and establishes a quantitative model for magnetic noise calculation. Verification experiments show the effectiveness of the proposed method.
Review
Engineering, Multidisciplinary
Krzysztof Bartnik, Marcin Koba, Mateusz Smietana
Summary: The demand for miniaturized sensors in the biomedical industry is increasing, and optical fiber sensors (OFSs) are gaining popularity due to their small size, flexibility, and biocompatibility. This study reviews various OFS designs tested in vivo and identifies future perspectives and challenges for OFS technology development from a user perspective.
Article
Engineering, Multidisciplinary
Yue Wang, Lei Zhou, Zihao Li, Jun Wang, Xuangou Wu, Xiangjun Wang, Lei Hu
Summary: This paper presents a 3-D reconstruction method for dynamic stereo vision of metal surface based on line structured light, overcoming the limitation of the measurement range of static stereo vision. The proposed method uses joint calibration and global optimization to accurately reconstruct the 3-D coordinates of the line structured light fringe, improving the reconstruction accuracy.
Article
Engineering, Multidisciplinary
Jaafar Alsalaet
Summary: Order tracking analysis is an effective tool for machinery fault diagnosis and operational modal analysis. This study presents a new formulation for the data equation of the second-generation Vold-Kalman filter, using separated cosine and sine kernels to minimize error and provide smoother envelopes. The proposed method achieves high accuracy even with small weighting factors.
Article
Engineering, Multidisciplinary
Tonglei Cao, Kechen Song, Likun Xu, Hu Feng, Yunhui Yan, Jingbo Guo
Summary: This study constructs a high-resolution dataset for surface defects in ceramic tiles and addresses the scale and quantity differences in defect distribution. An improved approach is proposed by introducing a content-aware feature recombination method and a dynamic attention mechanism. Experimental results demonstrate the superior accuracy and efficiency of the proposed method.
Article
Engineering, Multidisciplinary
Qinghong Fu, Yunxi Lou, Jianghui Deng, Xin Qiu, Xianhua Chen
Summary: Measurement and quantitative characterization of aging-induced gradient properties is crucial for accurate analysis and design of asphalt pavement. This research proposes the composite specimen method to obtain asphalt binders at different depths within the mixture and uses dynamic shear rheometer tests to measure aging-induced gradient properties and reveal internal mechanisms. G* master curves are constructed to investigate gradient aging effects in a wide range. The study finds that the composite specimen method can effectively restore the boundary conditions and that it is feasible to study gradient aging characteristics within the asphalt mixture. The study also observes variations in G* and delta values and the depth range of gradient aging effects for different aging levels.
Article
Engineering, Multidisciplinary
Min Li, Kai Wei, Tianhe Xu, Yali Shi, Dixing Wang
Summary: Due to the limitations of ground monitoring stations in China for the BDS, the accuracy of BDS Medium Earth Orbit (MEO) satellite orbits can be influenced. To overcome this, low Earth orbit (LEO) satellites can be used as additional monitoring stations. In this study, data from two LEO satellites were collected to improve the precise orbit determination of the BDS. By comparing the results with GPS and BDS-2/3 solutions, it was found that including the LEO satellites significantly improved the accuracy of GPS and BDS-2/3 orbits.
