| Id | Publisher | Venue | Title | Summary | Categories | Author | Year | Link | |
|---|---|---|---|---|---|---|---|---|---|
| 90 | Materials Today Communications |  | A review of aging, degradation, and reusability of PA12 powders in selective laser sintering additive manufacturing | This paper reviews the state-of-the-art on important aspects of aging mechanisms and degradation behaviors of polyamide 12 powders in … | Journal paper | Feifei Yang, Navid Zobeiry, Ramulu Mamidala, Xu Chen | 2022 | DOWNLOAD | |
| 89 | 2022 IFAC Mechatronics & MOVIC symposium |  | A robotic chess player and the impacts of mechanical and environmental setting in data collection | Robotic chess player, mechanical and environmental … | Abstract | Colin Acton; Xiaohai Hu; Mingyu Wang; Xu Chen | 2022 | to appear | to appear |
| 88 | IEEE/ASME Transactions on Mechatronics |  | Adaptive Lighting for Curved and Nonuniform Objects in Optomechanical Inspection Systems | We discuss the mathematical problem formulation, analytic solution, optimality of the proposed lighting, and experimental results in imaging curved … | Journal paper | Mark Gerges; Xu Chen | 2022 | to appear | |
| 87 | IEEE/ASME Transactions on Mechatronics | | Preheating Temperature Control and Low-Contrast Imaging Data Analytics for Laser Powder Bed Fusion | We propose a model-based multizone heating control for minimizing the powder bed temperature deviation and an image analytics framework for process … | Journal paper | Tianyu Jiang; Mengying Leng; Xu Chen | 2022 | DOWNLOAD | |
| 86 | ISFA 2022 | International Symposium on Flexible Automation |  | A Mass-Transfer Based Approach to Model and Predict Volatile Organic Compound Emission from Selective Laser Sintering | This work proposes a mass-transfer and experiment-data based approach to model and predict VOC emission in … | Conference paper | Feifei Yang; Xu Chen | 2022 | to appear | DOWNLOAD |
| 85 | 2021 Annual International Solid Freeform Fabrication Symposium |  | A Control of Surface Quality in Selective Laser Sintering Additive Manufacturing with Reclaimed Polyamide Materials | Aiming to improve the surface quality, we propose a novel approach for SLS with (extremely) aged polyamide 12 … | Conference paper | Feifei Yang; Tianyu Jiang; Xu Chen; Greg Lalier; John Bartolone | 2021 | DOWNLOAD | |
| 84 | 2021 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) |  | Control-oriented Mechatronic Design and Data Analytics for Quality-assured Laser Powder Bed Fusion Additive Manufacturing | This paper presents the design of a full-scale, fully accessible polymer laser powder bed fusion testbed with tailored mechatronic designs for in-situ monitoring and … | Conference paper | Tianyu Jiang; Mengying Leng; Xu Chen | 2021 | DOWNLOAD | |
| 83 | ASTM International Selected Technical Papers |  | Control-oriented In-situ Imaging and Data Analytics for Coaxial Monitoring of Powder Bed Fusion Additive Manufacturing | The objective of this study is to discuss a data processing infrastructure for coaxial sensing towards consistent and repetitive additive … | Conference paper | Tianyu Jiang; Mengying Leng; Xu Chen | 2021 | DOWNLOAD | |
| 82 | Journal of Manufacturing Processes |  | A combined theoretical and experimental approach to model polyamide 12 degradation in selective laser sintering additive manufacturing | In this work, we propose a first-instance kinetic model considering the effects of both oxygen and laser to model the material degradation in polyamide 12 … | Journal paper | Feifei Yang; Xu Chen | 2021 | DOWNLOAD | |
| 81 | The International Journal of Advanced Manufacturing Technology |  | Quantitative influences of successive reuse on thermal decomposition, molecular evolution, and elemental composition of polyamide 12 residues in selective laser sintering | This work experiments successive reuse of polyamide 12 residues and quantitatively monitors the thermal decomposition, molecular evolution, and compositional changes of the material in SLS … | Journal paper | Feifei Yang; Angela Schnuerch; Xu Chen | 2021 | DOWNLOAD | |
| 80 | Polymer Degradation and Stability |  | Evaluating poly (ether ether ketone) powder recyclability for selective laser sintering applications | This work evaluates the changes that occur in thermally treated PEEK powder through spectroscopic, morphological, and rheological … | Journal paper | Akanksha Patel; Varun Venoor; Feifei Yang; Xu Chen; Margaret J. Sobkowicz | 2021 | DOWNLOAD | |
| 79 | ASME Letters in Dynamic Systems and Control |  | New Hammerstein Modeling and Analysis for Controlling Melt Pool Width in Powder Bed Fusion Additive Manufacturing | This paper first builds a finite element model (FEM) of the thermal fields to look into the convoluted thermal interactions during the PBF … | Journal paper | Dan Wang; Xinyu Zhao; Xu Chen | 2021 | DOWNLOAD | |
| 78 | ASTM International Conference on Additive Manufacturing (ASTM ICAM 2020) | | A new kinetic modelling of polyamide 12 degradation in selective laser sintering | By a combined theoretical and experimental mapping of the actual material degradation rates into the oxidation physics, we obtain the coefficients of the actual coupled oxygen and laser effects in … | Conference paper | Feifei Yang, Xu Chen | 2021 | DOWNLOAD | |
| 77 | International Journal of Intelligent Robotics and Applications |  | Robotic Target Following with Slow and Delayed Visual Feedback | This paper presents a visual servoing algorithm for target following under slow and delayed feedback. It’s an extended version of my DSCC 2019 … | Journal paper | Hui Xiao, Xu Chen | 2020 | DOWNLOAD | |
| 76 | Polymer Testing |  | Process control of surface quality and part microstructure in selective laser sintering involving highly degraded polyamide 12 materials | To improve the surface quality and to build interrelations between process parameters and surface quality, we propose a novel approach for SLS with (extremely) aged polyamide 12 … | Journal paper | Feifei Yang; Tianyu Jiang; Greg Lalier; John Bartolone; Xu Chen | 2020 | DOWNLOAD | |
| 75 | Journal of Dynamic Systems, Measurement and Control |  | Closed-loop High-fidelity Simulation Integrating Finite Element Modeling with Feedback Controls in Additive Manufacturing | This paper builds a first-instance closed-loop simulation framework by integrating high-fidelity finite element modeling with feedback controls originally developed for general mechatronics … | Journal paper | Dan Wang; Xu Chen | 2020 | DOWNLOAD | |
| 74 | Journal of Manufacturing Processes | | A process control and interlayer heating approach to reuse polyamide 12 powders and create parts with improved mechanical properties in selective laser sintering | This work proposes a new process control method to maximize reusability of aged and extremely aged polyamide 12 … | Journal paper | Feifei Yang; Tianyu Jiang; Greg Lalier; John Bartolone; Xu Chen | 2020 | DOWNLOAD | |
| 73 | Dynamic Systems and Control Conference (DSCC) 2020 |  | New Hammerstein Modeling and Analysis for Controlling Melt Pool Width in Powder Bed Fusion Additive Manufacturing | This paper first builds a finite element model (FEM) of the thermal fields to look into the convoluted thermal interactions during the PBF … | Conference paper | Dan Wang; Xinyu Zhao; Xu Chen | 2020 | to appear | DOWNLOAD |
| 72 | 2020 International Symposium on Flexible Automation |  | Active interlayer heating for sustainable selective laser sintering with reclaimed polyamide 12 powders | Selective laser sintering; powder reuse; powder aging and degradation; interlayer heating; … | Conference paper | Feifei Yang; Tianyu Jiang; Xu Chen; Greg Lalier; John Bartolone | 2020 | DOWNLOAD | |
| 71 | IEEE/CAA Journal of Automatica Sinica |  | H-infinity-based Selective Inversion of Nonminimum-phase Systems for Feedback Controls | this paper provides a new treatment of unstable zeros in inverse design. We provide first an intuitive pole-zero-map-based inverse tuning to verify the basic principle of the unstable-zero … | Journal paper | Dan Wang; Xu Chen | 2020 | DOWNLOAD | |
| 70 | 2020 International Symposium on Flexible Automation | | Closed-loop Simulation Integrating Finite Element Modeling with Feedback Controls in Powder Bed Fusion Additive Manufacturing | This paper builds a first-instance closed-loop simulation framework by utilizing the output signals retrieved from the finite element model … | Conference paper | Dan Wang; Xu Chen | 2020 | DOWNLOAD | |
| 69 | Renewable Energy |  | Multivariable Robust Blade Pitch Control Design to Reject Periodic Loads on Wind Turbines | wind turbine; vibration rejection; energy … | Journal paper | Yuan Yuan; Xu Chen; Jiong Tang | 2020 | DOWNLOAD | |
| 68 | ASME Letters in Dynamic Systems and Control | | Control-oriented Modeling and Repetitive Control in In-layer and Cross-layer Thermal Interactions in Selective Laser Sintering | builds a modeling and control framework of the key thermodynamic interactions between the laser source and the materials to be … | Journal paper | Dan Wang; Tianyu Jiang; Xu Chen | 2020 | DOWNLOAD | |
| 67 | IEEE Transactions on Industrial Electronics |  | A Collaborative Sensing and Model-Based Real-Time Recovery of Fast Data Flows From Sparse Measurements | multirate signal processing; information recovery; disturbance beyond Nyquist … | Journal paper | Hui Xiao; Yaakov bar-shalom; Xu Chen | 2019 | DOWNLOAD | |
| 66 | ASME Dynamic Systems and Control Conference |  | Following Fast-Dynamic Targets With Only Slow And Delayed Visual Feedback—A Kalman Filter and Model-Based Prediction Approach | We propose a new framework with Kalman filters and multirate model-based prediction (1) to reconstruct fast-sampled 3D target position and velocity data, and (2) to compensate the time delay for general robotic motion … | Conference paper | Hui Xiao; Xu Chen | 2019 | DOWNLOAD | |
| 65 | IEEE Transactions on Control Systems Technology |  | Local Loop Shaping for Rejecting Band-Limited Disturbances in Nonminimum-Phase Systems With Application to Laser Beam Steering for Additive Manufacturing | local loop shaping; energy modulation; disturbance observer; inverse-free control; selective laser sintering; additive … | Journal paper | Tianyu Jiang; Hui Xiao; Jiong Tang; Liting Sun; Xu Chen | 2019 | DOWNLOAD | |
| 64 | ASME Dynamic Systems and Control Conference |  | Wide-band Loop Shaping for Modulation of Energy Transmission in Nonminimum-phase Systems | introduces a loop-shaping approach to create such wideband closed-loop behaviors, with a particular focus on systems with nonminimum-phase … | Conference paper | Tianyu Jiang; Jiong Tang; Xu Chen | 2018 | DOWNLOAD | |
| 63 | American Control Conference |  | A multirate repetitive control for fractional-order servos in laser-based additive manufacturing | studies repetitive control (RC) algorithms to advance the quality of repetitive energy deposition in laser-based additive manufacturing … | Conference paper | Dan Wang; Xu Chen | 2018 | DOWNLOAD | |
| 62 | International Symposium on Flexible Automation |  | Synthesis and Analysis of Multirate Repetitive Control for Fractional-order Periodic Disturbance Rejection in Powder Bed Fusion (Best Paper Award) | studies control approaches to advance the quality of repetitive energy deposition in powder bed fusion (PBF) additive … | Conference paper | Dan Wang; Xu Chen | 2018 | DOWNLOAD | |
| 61 | ASME Dynamic Systems and Control Conference |  | Model-based Sparse Information Recovery by Collaborative Sensor Management | considers the real-time recovery of a fast time series (e.g., updated every T seconds) by using sparsely sampled measurements from two sensors whose sampling intervals are much larger than T (e.g., MT and NT, where M and N are … | Conference paper | Hui Xiao; Yaakov Bar-Shalom; Xu Chen | 2018 | DOI | DOWNLOAD |
| 60 | SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring |  | Periodic wind disturbance rejection using robust individual pitch control | a robust individual pitch control strategy is presented to deal with periodic load disturbances on wind turbines under operating point … | Conference paper | Yuan Yuan; Xu Chen; Jiong Tang | 2018 | DOWNLOAD | |
| 59 | Mechanical Systems and Signal Processing |  | Discrete-time nonlinear damping backstepping control with observers for rejection of low and high frequency disturbances | disturbance observer; augmented observer; discrete time control; … | Journal paper | Wonhee Kim; Xu Chen; Youngwoo Lee; Chung Choo Chung; Masayoshi Tomizuka | 2018 | DOWNLOAD | |
| 58 | Mechatronics |  | Rejecting Fast Narrow-band Disturbances with Slow Sensor Feedback for Quality Beam Steering in Selective Laser Sintering | disturbance rejection; nyquist frequency; control algorithm; selective laser … | Journal paper | Hui Xiao; Tianyu Jiang; Xu Chen | 2018 | DOWNLOAD | |
| 57 | IEEE Transactions on Control Systems Technology | | Transmission of Signal Nonsmoothness and Transient Improvement in Add-on Servo Control | transient control; discontinuity; impulsive … | Journal paper | Tianyu Jiang; Xu Chen | 2018 | DOWNLOAD | |
| 56 | IEEE Transactions on Mechatronics | | A Spectral Analysis of Feedback Regulation Near and Beyond Nyquist Frequency | feedback regulation; high-gain control; Nyquist frequency; sampled-data … | Journal paper | Dan Wang; Xu Chen | 2018 | DOWNLOAD | |
| 55 | Control Engineering Practice |  | A multirate fractional-order repetitive control for laser-based additive manufacturing | selective laser sintering; laser scanning mechanism; numerical simulation; multirate sampled-data … | Journal paper | Dan Wang; Xu Chen | 2018 | DOWNLOAD | |
| 54 | Annual Inter- national Solid Freeform Fabrication Symposium |  | Realtime Control-Oriented Modeling and Disturbance Parameterization for Smart and Reliable Powder Bed Fusion Additive Manufacturing | develop and validatea surrogate modeling of in-process disturbances induced by the periodic in- and cross-layerthermomechanical … | Conference paper | Xu Chen; Dan Wang; Tianyu Jiang; Hui Xiao | 2018 | DOI | DOWNLOAD |
| 53 | United States Patent |  | Data storage devices and methods with frequency-shaped sliding mode control (US patent 9542966) | the servo controller is configured to generate an adjusted position error signal based on a position error signal and an estimated microactuator position … | Patent | Minghui Zheng; Xu Chen; Masayoshi Tomizuka; Wei Xi; Guoxiao Guo | 2017 | DOWNLOAD | |
| 52 | ASME Information Storage and Processing Systems Conference |  | Control of Dual-Stage HDDs With Enhanced Repetitive Disturbance Rejection | the dual-stage HDD is introduced to enhance the HDD control performance for extended bandwidth and improved disturbance … | Conference paper | Shiying Zhou; Minghui Zheng; Xu Chen; Masayoshi Tomizuka | 2017 | DOWNLOAD | |
| 51 | ASME Dynamic Systems and Control Conference |  | An Inverse-Free Disturbance Observer For Adaptive Narrow-Band Disturbance Rejection With Application To Selective Laser Sintering (Best Vibration Paper Award, ASME DSCD) | a Youla-Kucera parameterization based forward-model selective disturbance observer (FMSDOB) is proposed for flexible servo control with application to … | Conference paper | Tianyu Jiang; Hui Xiao; Xu Chen | 2017 | DOWNLOAD | |
| 50 | IEEE International Conference on Advanced Intelligent Mechatronics |  | Multi-band beyond-Nyquist Disturbance Rejection on a Galvanometer Scanner System | introduces a multi-rate control scheme to fully reject narrow-band beyond-Nyquist disturbances in galvanometer scanner … | Conference paper | Hui Xiao; Xu Chen | 2017 | DOWNLOAD | |
| 49 | Advances in Mechanical Engineering |  | A tutorial on loop-shaping control methodologies for precision positioning systems | precision control; feedback design; Youla–Kucera parameterization; disturbance rejection; loop shaping; galvo … | Journal paper | Dan Wang; Xu Chen | 2017 | DOWNLOAD | |
| 48 | IEEE Transactions on Magnetics |  | Adaptive Loop Shaping for Wide-Band Disturbances Attenuation in Precision Information Storage Systems | adaptive control; disturbance … | Journal paper | Liting Sun; Tianyu Jiang; Xu Chen | 2017 | DOWNLOAD | |
| 47 | International Journal of Adaptive Control and Signal Processing |  | A Robust Optimal Design for Strictly Positive Realness in Recursive Parameter Adaptation | strictly positive real; adaptive control; system … | Journal paper | Hui Xiao; Loan D; Landau; Xu Chen | 2017 | DOWNLOAD | |
| 46 | ASME Journal of Dynamic Systems, Measurement, and Control | | Disturbance Observer-Based Pitch Control of Wind Turbines for Enhanced Speed Regulation | wind turbine; vibration rejection; energy … | Journal paper | Yuan Yuan; Xu Chen; Jiong Tang | 2017 | DOWNLOAD | |
| 45 | ASME Dynamic Systems and Control Conference | | Disturbance Observer Based Control Design for Wind Turbine Speed Regulation | an internal model-based disturbance observer (DOB) design combined with a PID type feedback controller is formulated for wind turbine speed and power … | Conference paper | Yuan Yuan, Xu Chen, Jiong Tang | 2016 | DOWNLOAD | |
| 44 | International Symposium on Flexible Automation |  | Spectral Distribution and Implications of Feedback Regulation beyond Nyquist Frequency | a fundamental challenge in digital and sampled-data control arises when the continuous-time plant is subject to fast disturbances that possess significant frequency components beyond Nyquist … | Conference paper | Dan Wang; Masayoshi Tomizuka; Xu Chen | 2016 | DOWNLOAD | |
| 43 | SPIE Smart Structures and Material Systems + Nondestructive Evaluation and Health Monitoring | | Disturbance Observer Based Pitch Control of Wind Turbines for Disturbance Rejection | a disturbance observer based (DOB) control scheme is illustrated to reject the unknown low frequency disturbances to wind … | Conference paper | Yuan Yuan; Xu Chen; Jiong Tang | 2016 | DOWNLOAD | |
| 42 | Mediterranean Conference on Control and Automation |  | Interlaced Direct Adaptive Regulation Scheme Applied to a Benchmark Problem | an adaptive regulation scheme using the Internal Model Principle and an IIR Youla-Kučera controller parametrization is proposed for the suppression of multiple unknown and time varying narrow band … | Conference paper | Ioan Doré Landau; Abraham Castellanos Silva; Luc Dugard; Xu Chen | 2016 | DOWNLOAD | |
| 41 | American Control Conference |  | Extended State Observer with Phase Compensation to Deal with High-frequency Vibrations in Hard Disk Drives | proposes a phase compensator to recover the inherent phase loss in the traditional … | Conference paper | Minghui Zheng; Xu Chen; Masayoshi Tomizuka | 2016 | DOWNLOAD | |
| 40 | American Control Conference | | Enhanced Wide-Spectrum Vibration Suppression Based on Adaptive Loop Shaping | a direct adaptive control approach is proposed based on adaptive loop shaping and disturbance observer … | Conference paper | Liting Sun; Xu Chen; Masayoshi Tomizuka | 2016 | DOWNLOAD | |
| 39 | American Control Conference | | Input-to-output Discontinuity and Transient Improvement in Add-on Control Design | presents an exact formula for computing the output discontinuity during add-on servo, and discusses its influence on transient performance in different control … | Conference paper | Tianyu Jiang; Paul Hanrahan; Xu Chen | 2016 | DOWNLOAD | |
| 38 | American Control Conference | | Multirate Forward-model Disturbance Observer for Feedback Regulation beyond Nyquist Frequency | provides a discrete-time regulation scheme for exact sampled-data rejection of disturbances beyond Nyquist … | Conference paper | Xu Chen; Hui Xiao | 2016 | DOWNLOAD | |
| 37 | IEEE Transactions on Control Systems Technology | | Discrete-time Reduced-Complexity Youla Parameterization for Dual-input Single-output Systems | precision control; loop shaping; vibration rejection; discrete-time Youla parameterization; dual-stage actuation; dual-stage hard disk drives; multi-input single-output … | Journal paper | Xu Chen; Masayoshi Tomizuka | 2016 | DOWNLOAD | |
| 36 | Systems & Control Letters |  | Multirate Forward-model Disturbance Observer for Feedback Regulation beyond Nyquist Frequency | disturbance beyond Nyquist frequency; disturbance rejection; disturbance … | Journal paper | Xu Chen; Hui Xiao | 2016 | DOWNLOAD | |
| 35 | European Journal of Control |  | Modified direct adaptive regulation scheme applied to a benchmark problem | Adaptive regulation; Active vibration control; Inertial actuators; Multiple narrow band disturbances; Youla–Kučera parametrization; Internal Model … | Journal paper | Abraham Castellanos Silva; Ioan Doré Landau; Luc Dugard; Xu Chen | 2016 | DOWNLOAD | |
| 34 | United States Patent | | Data storage device comprising slew rate anti-windup compensation for microactuator (US patent US9007714) | an input signal to a compensator is generated, wherein the compensator is configured to generate a microactuator control … | Patent | Minghui Zheng; Xu Chen; Haiming Wang; Young-Hoon Kim; Wei Xi; Kuang-Yang Tu | 2015 | DOWNLOAD | |
| 33 | International Conference on Complex Systems Engineering | An Open-source Selective Laser Sintering Additive Manufacturing System | International Conference on Complex Systems … | Poster | Tianyu Jiang; Xu Chen | 2015 | |||
| 32 | American Control Conference |  | Real-time kinematic modeling and prediction of human joint motion in a networked rehabilitation system | a networked-based rehabilitation system is introduced for lower-extremity … | Conference paper | Wenlong Zhang; Xu Chen; Joonbum Bae; Masayoshi Tomizuka | 2015 | DOWNLOAD | |
| 31 | American Control Conference | | Discrete-time output feedback nonlinear control for combined low- and high-frequency disturbance compensation | present a discrete-time output feedback nonlinear control algorithm for reference tracking under both broad-band disturbances at low frequencies and narrow-band disturbances at high … | Conference paper | Wonhee Kim; Xu Chen; Chung Choo Chung; Masayoshi Tomizuka | 2015 | DOWNLOAD | |
| 30 | Automatica |  | Pseudo Youla-Kucera parameterization with control of the waterbed effect for local loop shaping | control of waterbed; local loop shaping; all-stabilizing … | Journal paper | Xu Chen; Tianyu Jiang; Masayoshi Tomizuka | 2015 | DOWNLOAD | |
| 29 | International Journal of Adaptive Control and Signal Processing | | Overview and new results in disturbance observer based adaptive vibration rejection with application to advanced manufacturing | disturbance observer; narrow-band loop shaping; manufacturing … | Journal paper | Xu Chen Masayoshi Tomizuka | 2015 | DOWNLOAD | |
| 28 | United States Patent | | Disk drive filtering disturbance signal and error signal for adaptive feed-forward compensation (US patent US8922938) | a disturbance signal is generated in response to a vibration, and the disturbance signal is filtered with a first filter comprising a frequency response to generate a filtered disturbance … | Patent | Xu Chen; JianGuo Zhou; Wei Xi; Kuang-Yang Tu; Guoxiao Guo | 2014 | DOWNLOAD | |
| 27 | United States Patent | | Methods for Closed-loop Compensation of Ultra-high Frequency Disturbances in Hard Disk Drives and Hard Disk Drives Utilizing Same (US patent US863005) | a disturbance observer (DOB) uses the control command and the plant output to generate a delayed and estimated version of the disturbance. The DOB comprises a Q filter having a selected center … | Patent | Xu Chen; Wei Xi; Young-hoon Kim; Kuang-Yang Tu | 2014 | DOWNLOAD | |
| 26 | ASME Dynamic Systems and Control Conference | | Adaptive suppression of high-frequency wide-spectrum vibrations with application to disk drive systems | presents an adaptive algorithm to identify and suppress these high-frequency wide-spectrum … | Conference paper | Liting Sun; Xu Chen; Masayoshi Tomizuka | 2014 | DOWNLOAD | |
| 25 | ASME Dynamic Systems and Control Conference | | Adaptive sliding mode spacecraft attitude control | an adaptive sliding mode spacecraft attitude controller, has the advantage of not requiring knowledge of the inertia of the spacecraft, and rejecting unexpected external disturbances, with global asymptotic position and velocity … | Conference paper | Yizhou Wang; Xu Chen; Masayoshi Tomizuka | 2014 | DOWNLOAD | |
| 24 | World Congress of the International Federation of Automatic Control |  | Transient enhancement in add-on feedforward algorithms for high-performance mechatronic systems | analyze the problem of control injection in feedforward compensation, and discuss the transient enhancement in add-on feedforward … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2014 | DOWNLOAD | |
| 23 | World Congress of the International Federation of Automatic Control | | Discrete-time frequency-shaped sliding mode control for audio-vibration rejection in hard disk drives | a discrete-time frequency-shaped sliding mode control (FSSMC) is proposed for audio-vibration rejection in Hard Disk Drives … | Conference paper | Minghui Zheng; Xu Chen; Masayoshi Tomizuk | 2014 | DOWNLOAD | |
| 22 | ISCIE/ASME International Symposium on Flexible Automation |  | Selective iterative learning control to deal with iteration-dependent disturbances (Best Paper Finalist) | discuss a new ILC strat-egy with a disturbance observer (DOB) and a time-varying Qfilter for improved … | Conference paper | Liting Sun; Xu Chen; Masayoshi Tomizuka | 2014 | DOWNLOAD | |
| 21 | ASME Annual Conference on Information Storage & Processing Systems | | A nonlinear feedback control scheme for transient performance enhancement in hard disk drives | aims to develop a nonlinear control algorithm to break the limitations of linear PID controls and improve the transient performance during the short-span track seeking / settling in hard disk drives … | Conference paper | Minghui Zheng; Xu Chen; Masayoshi Tomizuka | 2014 | DOWNLOAD | |
| 20 | IEEE Transactions on Control Systems Technology | | New repetitive control with improved steady-state performance and accelerated transient | repetitive control; control of waterbed; manufacturing … | Journal paper | Xu Chen ; Masayoshi Tomizuka | 2014 | DOWNLOAD | |
| 19 | ASME Journal of Dynamic Systems, Measurement, and Control | | Optimal decoupled disturbance observers for dual-input single-output Systems | disturbance observer; dual-stage precision … | Journal paper | Xu Chen , Masayoshi Tomizuka | 2014 | DOWNLOAD | |
| 18 | ASME Dynamic Systems and Control Conference | | Control design for cancellation of unnatural reaction torque and vibrations in variable-gear-ratio steering system | proposes a control method to cancel this unnatural torque. We address the problem by using a tire sensor and a set of feedback and feedforward … | Conference paper | Atsushi Oshima; Xu Chen; Sumio Sugita; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 17 | IEEE/ASME International Conference on Advanced Intelligent Mechatronics |  | Reduced-complexity and robust youla parameterization for discrete-time dual-input-single-output systems | explore special forms of Youla parameterization for obtaining stabilizing controllers for DISO systems, and discuss concepts to achieve reduced-complexity formulations with clearer design … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 16 | European Control Conference |  | Selective Model Inversion and Adaptive Disturbance Observer for Rejection of Time-varying Vibrations on an Active Suspension | an idea of selective model inversion (SMI) for a (possibly nonminimum phase) plant dynamics at multiple narrow frequency regions, so that vibrations can be estimated and canceled by … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 15 | American Control Conference |  | Control methodologies for precision positioning systems (Tutorial Paper) | considers the control aspect for precision positioning. In motion control systems at nano/micro levels, it has been noted that the control algorithm should be customized as much as possible to the spectrum of … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 14 | ASME Information Storage and Processing Systems Conference | | Neural-network based automatic pid gain tuning in the presence of time-varying disturbances in hard disk drives | presents automatic online gain tuning of PID controllers based on neural … | Conference paper | Liting Sun; Xu Chen; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 13 | IFAC Symposium on Mechatronic Systems |  | Inverse-based local loop shaping and IIR-filter design for precision motion control | discuss a feedback loop-shaping approach to address such a class of control … | Conference paper | Xu Chen; Atsushi Oshima; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 12 | American Society for Precision Engineering Spring Topical Meeting and the MIT Laboratory for Manufacturing and Productivity Annual Summit |  | Add-on loop shaping via youla parameterization for precision motion control | discuss add-on loop-shapingideas via Youla parameterization, aka all stabilizing controller parameterization, for improvedservo … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 11 | European Journal of Control | | Selective model inversion and adaptive disturbance observer for time-varying vibration rejection on an active-suspension benchmark | narrow-band loop shaping; adaptive … | Journal paper | Xu Chen; Masayoshi Tomizuka | 2013 | DOWNLOAD | |
| 10 | ASME Dynamic Systems and Control Conference | Motion & Vibration Conference | | Decoupled disturbance observers for dual-input-single-output systems with application to vibration rejection in dual-stage hard disk drives (Best Paper in Session Award) | presents a new extension of the DOB idea to dual-input-single-output systems, and discusses an optimal Q-filter … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2012 | DOWNLOAD | |
| 09 | ASME Dynamic Systems and Control Conference | Motion & Vibration Conference | | A convex optimization approach for solving the robust strictly positive real (spr) problem | proposes a convex optimization approach to address the robust SPR … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2012 | DOWNLOAD | |
| 08 | ASME/JSME Joint International Conference on Micromechatronics for Information and Precision Equipment | Reduced-complexity adaptive youla parameterization for broadband-vibration rejection in dual-stage hard disk drives | ASME/JSME Joint International Conference on Micromechatronics for Information and Precision … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2012 | |||
| 07 | IEEE/ASME International Conference on Advanced Intelligent Mechatronics |  | An enhanced repetitive control algorithm using the structure of disturbance observer | presents a new structural configuration of the internal model principle in repetitive control, wherein designers have more flexibility in the repetitive loop-shaping design, and amplification of non-repetitive errors can be greatly … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2012 | DOWNLOAD | |
| 06 | IEEE Transactions on Control Systems Technology | | A minimum parameter adaptive approach for rejecting multiple narrow-band disturbances with application to hard disk drives | narrow-band loop shaping; adaptive control; … | Journal paper | Xu Chen; Masayoshi Tomizuka | 2012 | DOWNLOAD | |
| 05 | World Congress of the International Federation of Automatic Control |  | Spiral servo writing in hard disk drives using iterative learning based tracking control | discusses high precision tracking control algorithms for the writing of spiral servo … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2011 | DOWNLOAD | |
| 04 | ASME Annual Conference on Information Storage & Processing Systems | A structure for all stabilizing controllers and its applications to narrow-band disturbance rejection in hard disk drives | ASME Annual Conference on Information Storage & Processing … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2011 | |||
| 03 | IFAC Symposium on Mechatronic Systems |  | An indirect adaptive approach to reject multiple narrow-band disturbances in hard disk drives | presents an indirect adaptive control scheme that rejects unknown multiple narrow-band disturbances in hard disk drive … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2010 | DOWNLOAD | |
| 02 | ASME Dynamic Systems and Control Conference | | Unknown multiple narrow-band disturbance rejection in hard disk drives-an adaptive notch filter and perfect disturbance observer approach | an adaptive control scheme is developed to reject unknown multiple narrow-band disturbances in a hard disk … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2010 | DOWNLOAD | |
| 01 | American Control Conference |  | Optimal plant shaping for high bandwidth disturbance rejection in discrete disturbance observers | robustness of the DOB is improved by shaping the true plant with a cascaded frequency shaping filter, while the nominal plant model remains … | Conference paper | Xu Chen; Masayoshi Tomizuka | 2010 | DOWNLOAD |