Review
Acoustics
Pengfei Du, Weishan Chen, Jie Deng, Shijing Zhang, Junjie Zhang, Yingxiang Liu
Summary: This paper provides a critical review on the research of piezoelectric ultrasonic transducers (PUT) in recent years, including the structural optimization, application expansion and ultrasonic energy stabilization. It summarizes the influence mechanism of PUT structure optimization and the impact of PUT vibration characteristics on machining effects.
Article
Engineering, Electrical & Electronic
Pengfei Lin, Yuanbo Zhu, Dongdong Chen, Chunlong Fei, Zhaobao Chen, Di Li, Shuxiao Zhang, Wei Feng, Zhishui Jiang, Li Wen, Changchun Chai, Yintang Yang
Summary: An intelligent optimization design method is proposed to optimize the design parameters of 2-2 piezo-composite material for fabricating high-performance piezo-composite ultrasonic transducer. Neural network models and modified particle swarm optimization algorithm are used to determine the optimal design parameters, resulting in the successful fabrication of a high-performance transducer.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Computer Science, Interdisciplinary Applications
Pengfei Lin, Yuanbo Zhu, Dongdong Chen, Chunlong Fei, Chenxi Zheng, Zhaobao Chen, Runcong Wu, Di Li, Shuxiao Zhang, Wei Feng, Zhishui Jiang, Li Wen, Changchun Chai, Yintang Yang
Summary: This study proposes an optimization design method based on finite element analysis and artificial intelligence to optimize the matching layers of a 2-2 piezo-composite transducer for biomedical imaging. The method utilizes neural networks trained by finite element analysis data to establish the mapping relationship between the thickness of the matching layers and the performance. The optimized thicknesses of the matching layers result in improved center frequency, bandwidth, and peak-to-peak voltage, and the fabricated transducer exhibits good resolution in ultrasonic imaging. The study demonstrates the effectiveness and potential of the proposed method for improving the performance of piezo-composite transducers in biomedical imaging.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2022)
Article
Automation & Control Systems
Yu Pang, Pingfa Feng, Jianjian Wang, Huiting Zha, Jie Xu
Summary: This study proposed a novel longitudinal-torsional ultrasonic vibration milling (LTUVM) process, which significantly reduces cutting force and improves surface finish of titanium alloy due to its separation cutting characteristics. Experimental results demonstrated that LTUVM can reduce cutting force compared with conventional and single longitudinal ultrasonic vibration milling, with the textured surface showing high integrity and periodicity advantages.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Computer Science, Information Systems
Ya-Han Liu, Hsin-Yi Su, Hsiao-Chi Lin, Chih-Ying Li, Yeong-Her Wang, Chih-Hsien Huang
Summary: This study proposes a small-sized and low-power piezoelectric micromachined ultrasonic transducer (pMUT) to replace traditional transducers for ultrasound haptics applications. The optimized design procedures and fabrication process of the pMUT platform are successfully demonstrated, showing its potential.
Article
Engineering, Mechanical
Saood Ali, Rendi Kurniawan, Park Gun Chul, Tae Jo Ko
Summary: This study experimentally investigated the tribological performance of micro-dimple surface texture patterns on a cylindrical surface under starved lubrication conditions. The results show that surfaces with hierarchical micro-dimples exhibit a lower coefficient of friction than non-textured surfaces in high-pressure contact regions. Additionally, the length variation of micro-dimples, i.e., the shape effect, is the major factor affecting the friction response of textured surfaces.
Article
Chemistry, Physical
Ying Meng, Jianxin Deng, Yang Lu, Shijie Wang, Jiaxing Wu, Wei Sun
Summary: The study successfully improved the adhesion strength and anti-adhesive wear performance of the AlTiN coating/steel substrate system by using ultrasonic rolling texturing pre-treatment technology, mainly through increasing the mechanical locking and large interfacial contact area of the textured substrate, improving the performance difference of the coatings and generating ideal residual compressive stress.
APPLIED SURFACE SCIENCE
(2021)
Article
Instruments & Instrumentation
Xinqi Tian, Weishan Chen, Yingxiang Liu, Jie Deng, Kai Li
Summary: Improving the performance of motion stages driven by piezoelectric actuators is crucial for expanding their applications. This study focuses on improving the output resolution of an H-shaped piezoelectric ultrasonic actuator by using sawtooth excitation voltages instead of conventional sinusoidal voltages. The experimental results demonstrate an upgraded resolution, higher speed, and larger carrying load for the prototype.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Haoyang Leng, Yongke Yan, Hairui Liu, Mark Fanton, Richard J. Meyer, Shashank Priya
Summary: This study demonstrates an integrated approach based on texturing and acceptor doping to realize a high-power piezoelectric ceramic with combined soft and hard properties. The ceramic with textured Mn-doped composition showed enhanced piezoelectric properties due to <001>-oriented grains and reduced energy barrier for polarization rotation. The inclusion of BaTiO3 template in textured ceramics increased tetragonality but decreased mechanical quality factor Q(m).
Article
Engineering, Electrical & Electronic
Satori Hachisuka, Hiroki Yokozawa, Fangyi Wang, Susumu Miyake, Jens Twiefel, Takeshi Morita
Summary: This study confirms the effectiveness of a dynamic resonant frequency control system for transducers, which enables the resonant frequency to match the driving frequency. The system proposes two main approaches: a stepped transducer structure and a fully automatic control system to achieve precise control of the resonant frequency ratio. The dynamic control system successfully matched the resonant frequency of the transducer with the driving frequency in a specific frequency band and controlled the shape of the waveform using resonant frequency control.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Acoustics
Weiwei Shao, Xiao Han, Peiyang Li, Zhangjian Li, Jiabing Lv, Xinle Zhu, Xiangxin Li, Jun Shen, Yaoyao Cui
Summary: The study introduces a method of generating dual frequency ultrasonic waves by combining contour mode with normal thickness mode in a single element transducer, and designs and analyzes the dual frequency transducer using finite element analysis. Experimental results demonstrate that the proposed contour vibration mode can work with thickness vibration mode to achieve dual frequency with high performance.
Article
Engineering, Manufacturing
Jiaxing Wu, Jianxin Deng, Yang Lu, Zhihui Zhang, Ying Meng, Ran Wang, Qinghao Sun
Summary: Linear and cross textures with different processing stepovers were fabricated on GCr15 steel surface using ultrasonic surface rolling processing (USRP). The effects of texture shape and processing stepover on dry friction and wear performance were investigated. The results showed that USRP texturing samples had improved friction and wear performance due to the strengthened substrate, reduced contact area, and entrapment of wear debris.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Instruments & Instrumentation
Dattar Singh Aulakh, Suresh Bhalla
Summary: This paper investigates the effectiveness of piezo sensors for structural identification in structural health monitoring. The results show that piezo sensors can accurately capture the modal parameters under different excitations and have good correlation with accelerometers. However, some modes may be missed under certain excitations.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Chemistry, Multidisciplinary
Laiming Jiang, Gengxi Lu, Yang Yang, Yushun Zeng, Yizhe Sun, Runze Li, Mark S. Humayun, Yong Chen, Qifa Zhou
Summary: The study describes a novel ultrasound system design using photoacoustic and piezo-ultrasound technology to achieve stable power supply and high-resolution signal communication in implantable medical systems. Through a hybrid sound source and multifunctional design, this technology demonstrates potential clinical application prospects in in vitro animal experiments.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Materials Science, Coatings & Films
Ying Meng, Jianxin Deng, Zhihui Zhang, Qinghao Sun
Summary: By applying ultrasonic rolling substrate texturing, the anti-wear performance of AlTiN coating can be significantly improved, especially in reducing wear. Under dry friction conditions, the stability of the friction coefficient and wear diameter of the coated samples have been notably enhanced.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Saood Ali, Rendi Kurniawan, Park Gun Chul, Tae Jo Ko
Summary: This study experimentally investigated the tribological performance of micro-dimple surface texture patterns on a cylindrical surface under starved lubrication conditions. The results show that surfaces with hierarchical micro-dimples exhibit a lower coefficient of friction than non-textured surfaces in high-pressure contact regions. Additionally, the length variation of micro-dimples, i.e., the shape effect, is the major factor affecting the friction response of textured surfaces.
Article
Green & Sustainable Science & Technology
Moran Xu, Rong Wei, Changping Li, Rendi Kurniawan, Jielin Chen, Tae Jo Ko
Summary: This research introduces a high frequency electrical discharge assisted milling (HF-EDAM) method with a novel tool design using flexible electrodes. The material removal mechanism of HF-EDAM is thoroughly explored under different machining parameters. A two-dimensional cutting force model is established and experiments show good prediction accuracy. The HF-EDAM method significantly reduces cutting force and tool wear, and improves machined-surface integrity compared to traditional methods. HF-EDAM is an effective approach for high-quality and efficient machining of difficult-to-machine titanium alloys.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Review
Materials Science, Textiles
Gananiar Kalusuraman, Sundaresan Thirumalai Kumaran, Karnan Balamurugan, Nenmeni Sivashanmugam, Palani Sivaprakasam, Rendi Kurniawan, Veeranan Ezhilmaran
Summary: Fiber reinforced composites materials have received much attention from researchers for their unique performance in structural applications. The addition of fiber and chemical treatments enhances the mechanical properties of the composites, but the working mechanism in mechanical composites is still controversial. Recent studies have focused on the free vibrational behavior of composites and their potential applications in industry. This review aims to provide a comprehensive understanding of the vibration behaviors of different fiber reinforced composites by discussing the natural frequencies and damping ratios.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Engineering, Manufacturing
Farooq Ahmed, Furqan Ahmad, S. Thirumalai Kumaran, Mohd Danish, Rendi Kurniawan, Saood Ali
Summary: This research focuses on the development of a micro-milling strategy to suppress burr formation during machining through the use of LN2 jet. Cryogenic treatment enhances the mechanical properties of the workpiece surface, reducing excessive plastic flow and resulting in a significant decrease in burr formation. Experimental results show improved machining quality in terms of cutting forces, chip morphology, and surface roughness.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Engineering, Manufacturing
Roshan Kuruvila, S. Thirumalai Kumaran, M. Uthayakumar, M. Adam Khan, Farooq Ahmed
Summary: This study focuses on coating nichrome on duplex stainless steel using atmospheric plasma spray method (APS) and detonation gun method (DGun) to minimize erosion. The results indicate that the DGun coating outperforms the APS coating in terms of erosion resistance.
INTERNATIONAL JOURNAL OF INTERACTIVE DESIGN AND MANUFACTURING - IJIDEM
(2023)
Article
Mathematics, Applied
Ming-Dai Yang, Xiao-Long Leng, Tae Jo Ko
Summary: Based on an analysis of large sample data, this paper improves the calculation method of the fractal dimension in an electrospun membrane and proposes a method to generate a computer-aided design (CAD) model of an electrospun membrane under the control of fractal dimension.
Article
Automation & Control Systems
Moran Xu, Shuo Chen, Rendi Kurniawan, Changping Li, Ye In Kwak, Saood Ali, Min Ki Choo, Pil-Wan Han, Tae Jo Ko
Summary: Longitudinal ultrasonic vibration-assisted machining (LUVAM) is a machining technique that offers low cutting force, good surface quality, and prolonged tool life. A new set of LUVAM spindle was designed with high-frequency vibrations to enhance efficiency and the critical cutting speed. Experimental results showed that LUVAM successfully reduced cutting force and temperature while improving surface integrity compared to conventional machining. The new spindle design provides a new approach for high-quality, efficient, and eco-friendly machining of difficult-to-cut materials.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Automation & Control Systems
Rendi Kurniawan, Tae Jo Ko, Pil Wan Han, Moran Xu, Jielin Chen, Ye In Kwak, Saood Ali
Summary: This study developed FE and mathematical models to analyze and predict the cutting forces in LVAM. The FE model was based on plastic deformation and damage models, while the mathematical model considered the influence of longitudinal vibration. The comparison showed a remarkable similarity between the two models, and experimental results validated their accuracy. Additionally, a comparison between LVAM and CM demonstrated that LVAM outperforms CM in machining performance.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Saood Ali, Rendi Kurniawan, Moran Xu, Farooq Ahmed, Tae Jo Ko
Summary: In this study, a long lasting and minimal maintenance required hierarchical micro-dimple surface textures were produced on a cylindrical specimen using a dual frequency surface texturing method, which is essential for anti-icing techniques in applications such as aircraft and power transmission lines. Experimental results showed that the textured surfaces exhibited an approximately 28% increase in delayed time compared to non-textured surfaces. The introduction of hierarchical micro-dimples as an anti-icing technique improved the delayed time by 8% compared to single scale micro-dimple surface textures.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Automation & Control Systems
Moran Xu, Shuo Chen, Rendi Kurniawan, Changping Li, Rong Wei, Hanwei Teng, Thirumalai Kumaran, Pil Wan Han, Tae Jo Ko
Summary: A new machining method, cryogenic-ultrasonic vibration-assisted milling (CUVAM), was proposed to improve the workability of Inconel 718. The study compared the effects of conventional machining (CM), cryogenic cooling machining (CCM), and CUVAM on cutting force, chip, tool life, workpiece surface morphology, and surface integrity. The results showed that cryogenic assistance could improve the machining environment and coefficient of friction, while ultrasonic vibration assistance in CUVAM suppressed the increase in cutting force. Compared to CM, CUVAM reduced cutting force by 36.5% and had a beneficial impact on tool life. The surface roughness after CUVAM was also significantly reduced compared to CCM.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Jielin Chen, Shuang Li, Xiaolong Leng, Changping Li, Rendi Kurniawan, Yein Kwak, Tae Jo Ko
Summary: A digital twin is an effective means of integrating physical and information aspects, and it has the potential to revolutionize the intelligence of cutting processes. This study introduces a bionic digital brain as the intelligent core of a digital twin-cutting process framework, which consists of digital neurons as the basic functional units. The digital neurons react and stimulate intelligent real-time computation, with the left brain receiving theoretical information and the right brain receiving actual perceptual information. By fusing the information from both brains, the digital neurons output optimal control solutions in real time. A case study demonstrates the powerful information processing capability and real-time precision machining effects of the bionic digital brain. The developed digital twin-cutting process system confirms the feasibility and effectiveness of the proposed framework, providing theoretical and technical references for the application and promotion of digital twin technology in cutting processes.
ROBOTICS AND COMPUTER-INTEGRATED MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Yini Chen, Changping Li, Shuang Li, Moran Xu, Lei Huang, Shujian Li, Pengnan Li, Xinyi Qiu, Tae Jo Ko
Summary: This study investigated the formation of craters and the evolution of the modified layer in RC-type EDM using a fluid-solid coupled temperature field model. It was found that the discharge energy significantly affects the formation of the modified layer, which shows phased characteristics with time. The simulation results were verified through an experiment, showing good agreement with the measured crater dimensions.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
(2023)
