Article
Automation & Control Systems
Weihua Chen, Bingran Li, Tong Zhao, Hui Zhang, Peiqing Ye
Summary: A vision-based measurement system and identification algorithm were proposed to measure three-dimensional displacement and identify position-dependent geometric errors in rotary axes. Experimental case studies demonstrated the accuracy and feasibility of the system, showing a significant reduction in geometric errors.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Nico Zimmermann, Elija Mueller, Sebastian Lang, Josef Mayr, Konrad Wegener
Summary: Sustainable precision manufacturing requires a shift from resource-based to intelligence-based reduction strategies for thermal errors. This paper introduces and evaluates a comprehensive thermal error compensation strategy for 5-axis machine tools, considering both linear and rotary axis errors and a wide range of thermal load cases. The method includes automated characterization of thermal behavior and data-driven compensation models to adapt to changing conditions. Experimental results demonstrate significant reduction in volumetric thermal errors and increased process capability in fluctuating temperatures. The self-learning thermal error compensation enables a significant increase in accuracy without prior knowledge of the machine tool behavior.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2023)
Article
Automation & Control Systems
Haohao Tao, Jinwei Fan, Tongjie Li, Feng Chen, Ri Pan
Summary: This paper presents a new sensitivity analysis method to extract key geometric errors and improve the machining performance of machine tools. The method involves developing a geometric error prediction model and a machining error model, and introducing a sensitivity index to quantify the impact of each geometric error on machining error. The validity and correctness of the method are demonstrated through simulations and experiments, and it can be extended to multi-axis machine tools.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Hao Wang, Xiaogeng Jiang
Summary: A universal identification method for position independent geometric errors (PIGEs) of dual rotary axes of five-axis machine tools with arbitrary rotary axis position structures is proposed based on the unit dual quaternion (UDQ). The method redefines the PIGEs using UDQ transformation and establishes a kinematic error model for error identification. A novel method for identifying PIGEs through the synchronous motion of dual rotary axes using a double ball bar (DBB) is proposed. The proposed method can greatly reduce the complexity of the experiment and operation steps by directly constructing the relative kinematic relationship between the tool and the workpiece based on the error model.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Electrical & Electronic
Zhenshuo Yin, Qiang Liu, Pengpeng Sun, Ji Ding
Summary: This study establishes a kinematic model based on HTM for multi-axis LEMT, proposes methods for measuring linkage parameters and positioning parameters, and successfully processes spatial curves with average contour error controlled within 15.1 µm.
Article
Engineering, Multidisciplinary
Sihan Yao, Haozhen Huang, Wenjie Tian, Weiguo Gao, Lingtao Weng, Dawei Zhang
Summary: A novel method is proposed in this paper to simultaneously identify the position-dependent geometric errors (PDGEs) and position-independent geometric errors (PIGEs) of dual rotary axes. The identification model is established based on the geometric error model and the actual distances between the two retroreflectors, enabling the simultaneous acquisition of all geometric errors. The identification results are validated by predicting volumetric errors, with deviations within 21.7 μm in three directions and a root mean square error of 6.8 μm, indicating the effectiveness of the proposed method in simultaneous identification of geometric errors. This method facilitates further study on the coupling effect of PDGEs and PIGEs.
Article
Automation & Control Systems
Luqi Song, Xueshen Zhao, Qiang Zhang, Dequan Shi, Tao Sun
Summary: A measurement method based on the double ballbar (DBB) is proposed in this paper to solve the problem of geometric error measurement for five-axis ultra-precision machine tools in interpolated five-axis motion. The method can measure the geometric errors of five-axis ultra-precision machine tool through only one-time installation and is less limited by the layout of machine tools. By designing the motion trajectory and maintaining the length of the DBB constant during the measurement process, the geometric errors can be effectively measured. The measured results are also compared with the theoretical results, showing agreement in trend and amplitude.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Tao Cheng, Sitong Xiang, Hainan Zhang, Jianguo Yang
Summary: This paper presents a new machining test for identifying the geometric and thermal errors of rotary axes on a five-axis machine tool. The test piece and measurement methods are designed to accurately identify various errors of the rotary axis. The proposed method shows good agreement with classical machining tests, and the identification principle and analytical solution for each error are simple and unaffected by linear axes, thus improving the accuracy of machining.
Article
Automation & Control Systems
Hongyu Wan, Silu Chen, Tianjiang Zheng, Dexin Jiang, Chi Zhang, Guilin Yang
Summary: This paper proposes a piecewise geometric error modeling and compensation method to reduce the influence from the backlash and other error sources in five-axis machine tools. The method is based on the measurement of distance variation in the tool end. By utilizing the local product of exponentials (POE) formula, kinematic errors are lumped into initial poses' deviations, and joint twists retain their nominal values. The effectiveness and superiority of the proposed method are demonstrated through simulation and experimental results.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Andre Breitzke, Hintze Wolfgang
Summary: This paper presents a novel methodology for quickly identifying the geometric errors of three-axis machine tools using on-machine measurement. A new three-dimensional artifact design is proposed for this purpose. The methodology is particularly suitable for regular control of machine accuracy to ensure long-term machining precision.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yesong Wang, Liang Ji, Jiashang Dong, Manxian Liu, Jiang Liu
Summary: The article presents a new strategy to enhance efficiency in complex structure machining by proposing a low-cost five-axis four-linkage milling system as an alternative to the expensive five-axis five-linkage system. Kinematic analysis is used to establish a correlation between tool location data and kinematic axis displacement. An interpolation algorithm is devised to determine a four-axis linkage milling strategy, resulting in reduced theoretical errors in the interpolation trajectory. The practical application of this novel milling strategy proves its effectiveness in processing integral impellers within acceptable efficiency parameters, providing a theoretical foundation for its application in high-precision five-axis five-linkage machine tools.
APPLIED SCIENCES-BASEL
(2023)
Article
Automation & Control Systems
Pu-Yang Tang, Ming-Tsung Lin, Meng-Shiun Tsai
Summary: This paper presents a novel master-based feedrate scheduling (MBFS) approach for five-axis machining, which can generate smooth trajectories along five-axis linear toolpaths. Linear and angular trajectories are planned by matching the same motion duration to realize time synchronization of five-axis motion. The local corner smoothing method is adopted to blend the velocities of the motion axes and generate cornering trajectories while satisfying corner position tolerance and drive constraints.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Automation & Control Systems
Lai Hu, Zhenggang Chen, Yaolong Chen
Summary: This study measures the accuracy of closed impeller machining machines in aerospace, particularly focusing on a cradle type five-axis machining center. The research focuses on the difficulties in measuring the accuracy of cradle-type five-axis machining centers and proposes solutions to improve accuracy. Laser interferometer is used to measure the straightness of X, Y, Z, and the positioning accuracy of X, Y, Z, B, and C axes. The importance of temperature sensor in improving measurement accuracy is highlighted through comparative analysis.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
Seung-Han Yang, Kwang-Il Lee
Summary: A prototype machine tool analyzer (MTA) was introduced, which consisted of five displacement sensors and a dual-ball system designed to identify 13 position-independent geometric errors in five-axis machine tools. The MTA completed four circular paths to identify these errors and was successfully applied to a commercial five-axis machine tool for experimental verification.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Deniz Bilgili, Erhan Budak, Yusuf Altintas
Summary: This paper proposes a computationally efficient multibody dynamic model to predict the pose-dependent dynamics of a five-axis machine tool. The model reduces the number of unknowns and computation time by using a Jacobian-based kinematics formulation and vibration mode identification method.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Automation & Control Systems
Nico Zimmermann, Soichi Ibaraki
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2020)
Article
Engineering, Multidisciplinary
Soichi Ibaraki, Mashu Hiruya
Summary: A novel scheme is proposed in this paper to measure the two-dimensional error motions of two linear axes using only a laser interferometer. This scheme offers practical advantages with lower implementation cost and simplicity. An experimental case study on a large-sized machine tool is presented along with uncertainty analysis.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Soichi Ibaraki, Rin Okumura
Summary: By using kinematic modeling, this paper investigates the thermal influence on the position and orientation errors of rotary axis average lines in five-axis machine tools. A new machining test method is proposed and an experimental case study demonstrates the observable changes in these errors due to thermal effects in finished test piece geometry.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2021)
Article
Engineering, Manufacturing
Nuodi Huang, Yang Zhang, Limin Zhu, Soichi Ibaraki
Summary: This study proposes a machining test method to visually evaluate the thermal influence on machine tools without the need for measuring instruments. Experimental results demonstrate that the selected machine tool requires 150 minutes of sufficient warm-up time within the specified permissible deviation range.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Engineering, Manufacturing
Qingzhao Li, Soichi Ibaraki, Wei Wang
Summary: This paper proposes a new machining test to evaluate the influence of rotation direction reversal on surface geometry and roughness quantitatively. The study finds that smoothing in the machine coordinate system can cause contour errors, while smoothing in the workpiece coordinate system can completely eliminate these errors.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Engineering, Industrial
K. Mori, A. Matsubara specialIntscript
Summary: A method is proposed to estimate the frequency responses of a workpiece with a fixture, and the receptance coupling method is extended to represent the dynamics of supporting fixtures. The method allows the compatible use of receptance of a fixture between workpieces, and cutting tests show that fixtures placed based on this method can suppress vibration.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2022)
Article
Automation & Control Systems
Nan Zhao, Soichi Ibaraki
Summary: This paper proposes a kinematic model and calibration scheme to improve the absolute positioning accuracy of industrial robots. The model includes not only link length errors and angular offsets, but also the error map of angular positioning deviation and the influence of backlash. Experimental results show that the model is effective and the compensation reduces the average absolute position error by 33%.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Shota Onishi, Soichi Ibaraki, Tomoyasu Kato, Masashi Yamaguchi, Takao Sugimoto
Summary: This paper proposes a novel scheme to separately identify the geometric errors of linear and rotary axes by using a touch-trigger probe and an uncalibrated test piece. Two case studies are presented, showing the long-term change in geometric errors and the influence of room temperature change on error motions.
Article
Engineering, Multidisciplinary
Soichi Ibaraki, Ryota Usui
Summary: This study introduces a new kinematic model for industrial robots, which accurately measures the angular positioning deviation of each rotary axis and proposes a new measurement method using open-loop tracking interferometer. Experimental results show that the accuracy of this model surpasses the conventional D-H model.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Engineering, Manufacturing
K. Mori, D. Ogura, A. Matsubara
Summary: While many studies focus on the energy efficiency of machine tools, few have investigated the energy efficiency of entire factories. This study proposes an air-conditioning strategy that takes into account weather conditions, indoor heat generation, and target conditions, and shows that it can significantly reduce energy consumption through simulation.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2022)
Article
Automation & Control Systems
Md Moktadir Alam, Soichi Ibaraki, Koki Fukuda, Sho Morita, Hiroshi Usuki, Naohiro Otsuki, Hirotaka Yoshioka
Summary: This article proposes a new kinematic model and identification scheme to improve the absolute positioning accuracy of industrial robots. The model considers the angular positioning deviations of the rotary axes and the influence of backlash, and it is identified using a laser tracker. Experimental results validate the prediction accuracy of the proposed model.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2022)
Article
Engineering, Industrial
S. Ibaraki, R. Saito
Summary: This study proposes a novel kinematic model for an articulated arm coordinate measuring machine (AACMM) that includes angular position measurement errors of rotary axes. To evaluate the model, a new Single Point Articulation Test (SPAT) setup is presented, and the R-Test is used to measure the stylus sphere's three-dimensional displacement. The experimental results evaluate the prediction accuracy of the proposed model.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2023)
Review
Engineering, Manufacturing
Wei Gao, Soichi Ibaraki, M. Alkan Donmez, Daisuke Kono, J. R. R. Mayer, Yuan -Liu Chen, Karoly Szipka, Andreas Archenti, Jean-Marc Linares, Norikazu Suzuki
Summary: This article presents advanced technologies for the calibration of machine tools. It categorizes kinematic errors into intra-axis errors, inter-axis errors, and volumetric errors. It addresses the measurement methods, modeling theories, and compensation strategies for machine tool errors as the major technological elements of machine tool calibration. The criteria for selecting a combination of technological elements for machine tool calibration are provided based on accuracy, complexity, and cost. Recent applications of artificial intelligence and machine learning in machine tool calibration are introduced and future trends in machine tool calibration are discussed.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2023)
Article
Engineering, Multidisciplinary
Zhiyang Zhao, Nuodi Huang, Lei Zhong, Zhengchun Du, Soichi Ibaraki, Limin Zhu
Summary: This paper proposes an on-machine measurement method to evaluate the thermal influence on long-span crossbeam of gantry machine tools. A kinematic model is established to compute the deformation of the crossbeam, and algorithms for position calibration and point cloud registration are proposed. Through a continuous warm-up experiment, the thermal errors of the Y-axes are calculated, and the effectiveness of the proposed method is verified.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2023)
Article
Engineering, Industrial
S. Ibaraki, K. Fukuda, M. M. Alam, S. Morita, H. Usuki, N. Otsuki, H. Yoshioka
Summary: This study proposed a novel kinematic model for volumetric error compensation of six-axis robots, taking into account the angular positioning deviation of each rotary axis. Experimental results showed a significant reduction in static volumetric error across the entire workspace.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Junichi Kouguchi, Hayato Yoshioka
Summary: A new monitoring method for milling process using signal analysis of acceleration sensors is proposed in this research, which can solve the difficulty in estimating cutting forces for small diameter tools.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Weijie Wang, Yanling Tian, Zhao Zhang, Zhilai Lu, Fujun Wang, Dawei Zhang
Summary: This paper proposes a comprehensive model for predicting the cutting depth and contact area in nanoscratching. The model takes into account the geometric shape of the indenter and elastic recovery, reducing prediction errors. The study also analyzes the influence of the indenter geometry on the contact area, with the face angle of the pyramid identified as a key factor.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Qiaolin Li, Yuki Shimizu, Xiaohao Wang, Xinghui Li, Wei Gao
Summary: This paper introduces a stitching linear scan method for roundness and diameter measurement of small cylinders, using a ruby ball stylus as hardware filtering to eliminate the influence of high-frequency data. Experimental results show that the repeatability of the ruby ball stylus is better than the diamond stylus.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Chaturaporn Kerdkaew, Surasak Kaewpho, Sakchai Chomkokard, Theera Yaemglin, Ittipon Cheowanish, Noparit Jinuntuya, Wiwat Wongkokua
Summary: A new calibration standard for a CMOS-based autocollimator using an optical angle generator with a submillimeter strip reflector (OAG-SSR) is proposed. This method provides angular values along the measuring range of the autocollimator without any mechanical movement, enabling a faster calibration process, which is suitable for integration with production lines.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Haohao Tao, Tongjie Li, Feng Chen, Jinwei Fan, Ri Pan
Summary: In this paper, a novel OTA method is proposed that considers the relationship between tolerance of machine tools' key parts and volumetric error. A volumetric error prediction model is established based on the bridge between geometric error and tolerance. Additionally, a Processing Simplicity Index (PSI) is introduced to replace manufacturing cost and a tolerance-PSI model is established. An OTA model is formulated to minimize volumetric error and maximize PSI. The feasibility and effectiveness of the method are validated through simulations and experiments.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Xiumin Zhang, Jianhua Liu, Huanxiong Xia, Xiaohui Ao, Jiechen Zhou, Zhihao Fu
Summary: A comprehensive finite-element model was developed in this paper to study the evolution of surface figure in high-precision bonded mirrors. The cure kinetics and mechanical behaviors of the optical adhesive were experimentally examined and modeled, and the effects of environmental factors on the surface-figure accuracy and stability were further investigated.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Peng Wang, Bin Chen, Jian Li, Jianwei Wang, Yingjie Zhang, Kai Feng
Summary: This paper proposes an aerostatic bearing with damper modules to suppress vibration on the bearing surface. The stiffness and damping characteristics can be adjusted by changing the thickness of the sheets, resulting in effective vibration suppression.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Lei Yang, Xiaoguang Guo, Renke Kang, Xianglong Zhu, Yufan Jia, Hao Wang
Summary: This paper develops an analytical model that takes into account the pad surface morphology to predict the evolution of the workpiece surface shape. The model considers the cross-scale relationship between the formation of lapped surface shape and the scratching process of a single abrasive grain. The simulated and experimental results validate the correctness and validity of the model, providing new ideas for controlling the workpiece surface.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Gabriele Piscopo, Alessandro Salmi, Eleonora Atzeni
Summary: This paper proposes an artifact for the LP-DED process and evaluates its dimensional accuracy and geometrical tolerances. The findings show that the tolerances of the LP-DED process are comparable to sand casting, lower than LB-PBF technologies, but similar to EB-PBF technologies.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Liang Xue, Ningsong Qu
Summary: This study focuses on the key issues of improving material removal rate and surface quality in macro-electrolyte jet machining. By introducing a novel tool with the rear-end tilted, the current density of the workpiece surface can be increased, leading to improved machining performance. Experimental results show that the tool with a rear-end tilt angle of 15 degrees significantly enhances the material removal rate and reduces surface roughness compared to the standard tool.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Ping Yang, Kaixin Luo, Runxi Wu
Summary: This article proposes a new calibration device to measure the spatial errors of a six-axis serial robot. The device compensates for errors by modifying angles and identifying stiffness parameters, and experiments verify its effectiveness.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Shilei Wu, Mingxiang Ling, Yingbin Wang, Tao Huang
Summary: This paper studies the electromechanical behavior of elliptical APAs by analyzing the multi-domain dynamics of piezoelectric stacks and compliant mechanisms using a novel electro-mechanical transfer matrix method. An analytical electro-elasto transfer matrix of piezoelectric stacks operating at the d33 mode is derived in the form of Taylor's series. The dynamic response spectrum of displacement and impedance for elliptical APAs is accurately captured by this electro-mechanical model, and different topologies of elliptical APAs are compared to suggest the optimal configuration.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Lei Meng, Yusheng Liu, Ying Yan, Dongming Guo, Ping Zhou
Summary: This study explores electrochemically induced chemical etching (ECICE) as a method to achieve nanogram-level, low-cost, stress-free, and stable material removal of fused quartz. The key factors affecting removal minimum and stability are revealed through modeling analysis and testing. A proposed method achieves precision stable removal with satisfactory results at the nanogram level.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Hong Yao, Hai Bi, Junjie Wei, Shuo Zhan, Fangxin Chen, IEEE
Summary: This paper presents a dual-loop control syringe-based picoliter-scale injection system for high-precision microinjection. The system utilizes an inner pneumatic servo loop and an outer position servo loop to achieve precise control. The experimental results demonstrate that the system can regulate the smallest droplet size to within 0.25 pL.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Jinchun Yuan, Jiasheng Li, Ye Ding
Summary: In this paper, a simple and effective internal model control (IMC) system is proposed to attenuate thrust ripples in ultraprecision air-bearing linear feed systems, based on a modified modeling and identification method of permanent magnet linear synchronous motors (PMLSMs). The performance of the proposed method in overcoming nonlinearity and achieving smooth velocities in steady states is demonstrated through analysis and experiments.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)