Results 31 to 40 of about 6,469 (166)
Modeling and Simulation of Airborne Radar Antenna Servo Control with Disturbance Observer
Hangkong gongcheng jinzhan, 2021 Accuracy of airborne radar antenna servo control(ARASC)is one of important index for radar system to accurately search,identify and detect targets.Radar antenna bears greater air resistance during scanning motion,because of the wind speed and moving ...
ZHAO Xi, LI Qimeng
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Applied Sciences, 2019 The opto-electric servomechanism (OES) plays an important role in obtaining clear and stable images from airborne infrared detectors. However, the inherent torque disturbance and the noisy speed signal cause a significant decline in the inertial ...
Chao Qi +3 more
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Multiple Frequency Vibration Estimation in Controlled Electric Synchronous Motor Systems
MachinesSynchronous motors are widely used in applications demanding high efficiency, torque density, and precise velocity regulation, such as electrified transportation, industrial automation, and robotics.
Francisco Beltran-Carbajal +4 more
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A study of Tuned Mass Damper (TMD) Application for Mass Imbalance and Vibration Reduction in Gimbal Systems for High-speed Maneuverable Vehicles [PDF]
한국정밀공학회지This study proposed a method for simultaneously reducing mass imbalance and vibration in gimbal systems utilizing a tuned mass damper (TMD) as a balancing weight. Finite element analysis (FEA) and experiments were used for testing the method.
Jun-Soo Kim +4 more
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Proceedings, 2020 In this study, we developed an evaluation method using posture and joint torque for the evaluation of balance ability. The evaluation and analysis of standing with a disturbance is conducted for effective balance evaluations.
Yasuhiro Nakamichi +4 more
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Gong-kuang zidonghua, 2013 In view of problems of big torque fluctuation and easy to be influenced by load change existed in direct torque control system of permanent magnet synchronous motor based on PI controller, the paper designed an active disturbance rejection controller ...
YANG Jie, HUANG Ku
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Synchronization of Two Self-Synchronous Vibrating Machines on an Isolation Frame
Shock and Vibration, 2011 This paper investigates synchronization of two self-synchronous vibrating machines on an isolation rigid frame. Using the modified average method of small parameters, we deduce the non-dimensional coupling differential equations of the disturbance ...
Chunyu Zhao +3 more
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Induced Norm-Based Analysis for Computed Torque Control of Robot Systems
IEEE Access, 2020 This paper is concerned with providing a new quantitative analysis method of computed torque control of robot systems by using three types of induced norm. This paper first considers design of a computed torque controller to achieve a trajectory tracking
Jung Hoon Kim, Sung-Moon Hur
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Solar Cruiser disturbance torque estimation and predictive momentum management
Advances in Space ResearchThis paper presents a novel disturbance-torque-estimation-augmented model predictive control (MPC) framework to perform momentum management on NASA's Solar Cruiser solar sail mission. Solar Cruiser represents a critical step in the advancement of large-scale solar sail technology and includes the innovative use of an active mass translator (AMT) and ...
Shen, Ping-Yen, Caverly, Ryan J.
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IEEE Access, 2020 This paper proposes an extended model based predictive flux control (MPFC) with modified disturbance observer speed loop for induction motors. The main advantages of the proposed method are the improvement of load estimation, the suppression of current ...
Muhammad Abbas Abbasi +5 more
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