Sibel Zorlu Partal, İbrahim Şenol, Ahmet Bakan, Nur Bekiroğlu,
... alternative approach to speed estimation of brushless AC servomotors is presented. Speed control is realized in the following steps. First, the servomotor was mathematically modelled; the driver system was designed and speed control of the servomotor was accomplished with feedback. Next, a network structure representing the electrical and mechanical properties of the servomotor was built via Artificial Neural Network (ANN) and ... was achieved based on the ANN. The complex servomotor hardware was highly simplified, the cost was significantly ...
Tópico(s): Advanced Sensor and Control Systems
2011 - Scientific and Technological Research Council of Turkey (TUBITAK) | TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES
Filippo Ubertini, Ilaria Venanzi, Gabriele Comanducci,
... is to rely on the use of electric servomotors and low friction transmission devices. While similar full- ... driver system, fabricated by coupling an electric torsional servomotor with a ball screw transmission device, using state- ... high speed digital communication protocol between controller and servomotor drive. The prototype actuator is mounted on top ... at first, by considering the torque of the servomotor as the control input, in agreement with other ... they are extended to the case where the servomotor operates under kinematic control, that is, by commanding ...
Tópico(s): Seismic Performance and Analysis
2015 - Elsevier BV | Mechanical Systems and Signal Processing
Mahdi Sparham, Ahmed A. D. Sarhan, N.A. Mardi, M. Hamdi, Mahidzal Dahari,
... friction force in the CNC linear guideways and servomotor current in the feed drive system in dry ... during cutting in dry lubrication condition. Second, the servomotor currents on the X and Z-axes are ... the friction force in CNC linear guideways and servomotor current is established using the training data obtained ... error and accuracy for both friction force and servomotor currents are investigated. The results demonstrate that the proposed ANFIS model can predict friction forces and servomotor currents with 1.38% and 4.1% errors, ...
Tópico(s): Gear and Bearing Dynamics Analysis
2017 - Elsevier BV | Journal of Manufacturing Processes
Daniele Esposito, Sergio Savino, Chiara Cosenza, Gaetano D. Gargiulo, Antonio Fratini, Giuseppe Cesarelli, Paolo Bifulco,
... Federica”. The prosthesis is moved by a single servomotor able to rotate 180 degrees. Video acquisitions of complete rotations of the servomotor, when it works freely or fixed to the ... to compare the different kinematic behaviors of the servomotor. A current sensor was used to measure the ... current, i.e. the energy absorption, by the servomotor under different uses of the prosthesis (at rest, ... The comparison between the kinematic behaviors of the servomotor alone or connected to the prosthesis, showed the ...
Tópico(s): Robot Manipulation and Learning
2019 - Springer Nature | IFMBE proceedings
Abdul Wali Abdul Ali, Fatin Asmida Abdul Razak, Nasri Hayima,
AC Servomotors are widely used in the industries for the control of static and dynamic loads. Precise control of ... torque are the main issues with the AC Servomotor. AC Servomotors are highly demanded by the industries to have ... are commercially available for the control of AC Servomotor under static and dynamic load conditions. However, all ... investigations are done on the control of AC Servomotor, but comprehensive surveys on the control of AC Servomotor were still limited. In this paper, most of ...
Tópico(s): Elevator Systems and Control
2020 - | ELEKTRIKA- Journal of Electrical Engineering
... and measuring the parameters of separately excited dc servomotors are inadequate. Eight practical servomotor models are identified, and the parameters of each ... defined. Testing procedures are given for determining a servomotor's model type and all the model parameters ... obtained between the actual current responses of several servomotors and their predicted responses obtained from the corresponding ...
Tópico(s): Industrial Technology and Control Systems
1977 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Industry Applications
Lyndon Scott Stephens, Hooi-Mei Chin,
... loop performance of a Lorentz-type self bearing servomotor test rig are presented. Previous work has identified the existence of multiple destabilizing terms in the servomotor force-torque characteristic. These terms are treated as ... uncertainties. The closed loop bearing stiffness for the servomotor was measured as 502N/mm and the closed ... m/rad. The angular pointing accuracy of the servomotor was also measured and found to be <30µrad.
Tópico(s): Hydraulic and Pneumatic Systems
2003 - Japan Society Mechanical Engineers | JSME International Journal Series C
Reza Shahnazi, H.M. Shanechi, Naser Pariz,
A position control of a class of servomotors is addressed in this paper via a novel adaptive fuzzy PI sliding mode control. The premise and the consequence parts of the fuzzy ... applied to control a model of uncertain induction servomotor subject to significant disturbances and a model of DC servomotor with unknown parameters and uncertainty in load condition. ... the effectiveness of the proposed method in controlling servomotors in terms of significant reduction in chattering while ...
Tópico(s): Control Systems in Engineering
2008 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Energy Conversion
Long Cheng, Yingzi Lin, Zeng‐Guang Hou, Min Tan, Jian Huang, Wenjun Zhang,
... driven by the constant velocity (CV) motors and servomotors in a proper configuration. The hybrid machine is ... chain five-bar hybrid mechanism driven by one servomotor and one CV motor. The principle of the proposed controller is to properly design the servomotor control input that can compensate not only the uncertainty in the servomotor but also the uncertainty in the CV motor. ... tracking errors of the joint associated with the servomotor and the velocity tracking error of the joint ...
Tópico(s): Sensorless Control of Electric Motors
2010 - Institute of Electrical and Electronics Engineers | IEEE/ASME Transactions on Mechatronics
Lixin Dong, Bradley J. Nelson, Toshio Fukuda, Fumihito Arai,
Nanoscale linear servomotors with integrated position sensing are investigated from experimental, theoretical, and design perspectives. Prismatic motion is realized using the ... These results demonstrate the possibility of fabricating linear servomotors at the nanometer scale with integrated position sensing. ... or molecules are measured, transported, or processed. Linear servomotors will play a significant role in such applications ... conversion from rotary to linear motion. Nano linear servomotors are experimentally and theoretically investigated in this paper. ...
Tópico(s): Force Microscopy Techniques and Applications
2006 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Automation Science and Engineering
R. Shanmugasundram, K. Muhammad Zakariah, N. Yadaiah,
... for achieving improved performance of Brushless dc (BLDC) servomotor drive. The performance of fuzzy and PID controller-based BLDC servomotor drives is investigated under different operating conditions such ... reference speed, parameter variations, load disturbance, etc. BLDC servomotors are used in aerospace, instrumentation systems, space vehicles, ... and PID are being used with the BLDC servomotor drive control systems to achieve satisfactory transient and ... the tuned gain parameters obtained for such BLDC servomotor drive control systems do not yield better transient ...
Tópico(s): Industrial Automation and Control Systems
2012 - Institute of Electrical and Electronics Engineers | IEEE/ASME Transactions on Mechatronics
Yuichiro Nakamura, Kazuhiro Tanaka, Mitsushige NAKAYAMA, T. Fujita,
... A hybrid mass damper (HMD) using an electric servomotor for vibration control of buildings has been developed. ... scaling up of the device, a linear‐induction servomotor, and a design controller based on the H ‐ ...
Tópico(s): Elevator Systems and Control
2001 - Wiley | Earthquake Engineering & Structural Dynamics
Almas Shintemirov, Aibek Niyetkaliyev, Matteo Rubagotti,
... parallel manipulator (SPM) with revolute joints, actuated by servomotors with default internal position control settings. The proposed ... order to relate the angular positions of the servomotors to the orientation of the SPM top mobile ... of the manipulator. Finally, reference trajectories of the servomotors are defined via convex optimization. These trajectories determine ... motion based on the configuration space and original servomotor dynamics. The proposed strategy is experimentally demonstrated on a prototype of Agile Wrist SPM with three servomotors.
Tópico(s): Robot Manipulation and Learning
2015 - Institute of Electrical and Electronics Engineers | IEEE/ASME Transactions on Mechatronics
... not only to mechanical parts but also to servomotors and the necessary electronics to efficiently control such ... required equipment. On the other hand, using intelligent servomotors with the position control and feedback, affordable hexapod ... approach for adaptive locomotion control using only the servomotors position feedback. Adaptive fine-tuning of the proposed ... leg accompanied by the model of the internal servomotor controller. The models enable timely detection of the ... and torques applied to the robot construction and servomotors without any additional sensor feedback. The presented results ...
Tópico(s): Robot Manipulation and Learning
2019 - Elsevier BV | Robotics and Autonomous Systems
Ravinder Singh, Archana Khurana, Sunil Kumar,
... related to time synchronization problem between laser and servomotor and torque variation in servomotors arise, which causes misalignment in stacking the 2D ... the erroneous angular and position information by the servomotor and the 3D laser point cloud become distorted ... from a 2D laser scanner coupled with a servomotor (dynamixel motor) for developing an efficient 3D laser ... proposed DGT filter linked with laser scanner and servomotor and an improvement of 6.5 per cent ...
Tópico(s): Optical measurement and interference techniques
2020 - Emerald Publishing Limited | Industrial Robot the international journal of robotics research and application
Prashant Kumar, Izaz Raouf, Heung Soo Kim,
... sturdy build, they are susceptible to malfunction. The servomotor is a fundamental component of industrial robots, and ... methods for detecting bearing failure, diagnosis of a servomotor bearing failure in the industrial robot remains difficult ... In this paper, a novel method for detecting servomotor bearing defects in the industrial robot is provided ... via transfer learning. Initially, current signals of the servomotor are transformed to scalogram images. This processed data ...
Tópico(s): Industrial Vision Systems and Defect Detection
2024 - Elsevier BV | Advances in Engineering Software
Lorne W. Hofstetter, J. Rock Hadley, Robb Merrill, Huy Xuan Pham, G Fine, Dennis L. Parker,
... has not yet been realized because conventional electromagnetic servomotors used by medical robots can become dangerous projectiles ... MRI scanner. Here we report a novel electromagnetic servomotor design that is constructed from non-magnetic components ... precisely controlled rotary actuation during imaging. Using this servomotor design, an MRI-compatible robot was constructed and ... This work presents the first fully functional electromagnetic servomotor that can be safely operated (while imaging) in ...
Tópico(s): Advanced Radiotherapy Techniques
2022 - | Communications Engineering
George W. Younkin, W.D. McGlasson, R. D. Lorenz,
... important differences encountered in applying AC permanent magnet servomotors that might have one-tenth of the shaft ... servo application. The test stand had two AC servomotors coupled in a motor/dynamometer configuration. Analytical and ... the acceleration or command-following capabilities of the servomotor, reduction of shaft inertia affects the controller tuning ... sampling rate. The process of selecting an appropriate servomotor for such axis servo applications is reviewed, and ...
Tópico(s): Control Systems in Engineering
1991 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Industry Applications
... bow on a violin string. Four cable and servomotor systems allow for four degrees of freedom, including ... string. Encoders, attached to the shaft of the servomotors, sense the gesture of the performer, through the rotation of the servomotor shafts, turned by the motion of the cables. ... The software also sends control voltages to the servomotors, engaging them and the cables attached to them ...
Tópico(s): Teleoperation and Haptic Systems
2002 - Cambridge University Press | Organised Sound
Roque A. Osornio‐Rios, René de Jesús Romero-Troncoso, Gilberto Herrera-Ruíz, Rodrigo Castañeda-Miranda,
... the natural frequencies of the mechanical structure and servomotors. Previous works have developed jerk limited trajectories with ... polynomial profile generator: the first one with the servomotor at no load and the second one for the servomotor driving a CNC milling machine axis. From experimental ...
Tópico(s): Advanced Numerical Analysis Techniques
2008 - Elsevier BV | Robotics and Computer-Integrated Manufacturing
... on trajectory tracking problem for an AC synchronous servomotor. A mathematical model for the system including AC synchronous servomotor, gearbox, and a load is developed to examine ... are presented. The tracking performance of an AC servomotor system is illustrated with proposed PID controller.
Tópico(s): Hydraulic and Pneumatic Systems
2007 - Hindawi Publishing Corporation | Modelling and Simulation in Engineering
Zhihong Sun, Bing Zhang, Cheng Long, Wenjun Zhang,
... was based on the redundancy function of the servomotor, so the approach is called redundancy servomotor (RSM). In this paper, we apply the RSM ... the proposed approach to the design of the servomotor's trajectory or plan, which is useful to ...
Tópico(s): Robotic Mechanisms and Dynamics
2011 - Elsevier BV | Mechanism and Machine Theory
Mohsen Siahmansouri, Ahmad Ghanbari, Mir Masoud Seyyed Fakhrabadi,
... robot manoeuvre by a mechanical system with two servomotors. These servomotors regulate the direction and depth of swimming. A ... remote control system is designed to adjust the servomotors which enables us to control revolution, speed and phase differences of neighbor servomotors of fins. Finally, Field trials are conducted in ...
Tópico(s): Micro and Nano Robotics
2011 - SAGE Publishing | International Journal of Advanced Robotic Systems
R. Shanmugasundram, Karim Muhammed Zakaraiah, Narri Yadaiah,
... controller (MRAC) for the brushless direct current (BLDC) servomotor drive system. The performance of the BLDC servomotor drive system is analyzed under different operating conditions ... mechanical load parameters accurately for the small DC servomotor drives is a great challenge to the control ...
Tópico(s): Control Systems in Engineering
2012 - SAGE Publishing | Journal of Vibration and Control
H.J. Van de Straete, Joris De Schutter,
... easily be modified. The use of a single servomotor for every motion is not the best solution, ... for energy recuperation. This means that the installed servomotor power will be much higher than the required ... a whole. The presented solution, however, reduces the servomotor peak torque and power by one order of ... hybrid drive, which is a combination of a servomotor, a constant velocity motor and a cam follower ...
Tópico(s): Advanced Thermodynamic Systems and Engines
1996 - Institute of Electrical and Electronics Engineers | IEEE/ASME Transactions on Mechatronics
P. R. Ouyang, Q. Li, Wenjun Zhang, Longhua Guo,
... drive system integrates two types of motors: the servomotor and the constant velocity (CV) motor. The existing ... on the hybrid machine prototypes usually uses two servomotors, of which one "mimic" the CV motor by ... the CV motor, yet be propagated to the servomotor, and further to the end-effector of the ... and incorporate it into a controller for the servomotor. A controller based on the sliding mode control ...
Tópico(s): Electric Motor Design and Analysis
2004 - Elsevier BV | Mechatronics
A. Diop, Cristian Nichita, J.J. Belhache, Brayima Dakyo, E. Ceangă,
... an electromechanical tracking system, using any type of servomotor 1 5–17 . Having presented the wind turbine linearised models, with respect to types of servomotor control (in speed or in torque), an analysis ... the speed and torque control structures. Finally, a servomotor choice principle is established, illustrated by numerical results obtained with the servomotor of a real time wind turbine simulator.
Tópico(s): Hydraulic and Pneumatic Systems
2000 - SAGE Publishing | Wind Engineering
P.N.Q. Nhon, Irraivan Elamvazuthi, Haytham M. Fayek, S. Parasuraman, M.K.A. Ahamed Khan,
DC servomotors have been in use extensively for many applications vary from industrial to robotics to consumers. DC servomotors provide error feedback signal to its PID controller ... e., Interval Type-2 Fuzzy Logic for DC servomotor is proposed. The paper proposes error and error ...
Tópico(s): IoT-based Smart Home Systems
2014 - Elsevier BV | Procedia Computer Science
Yebin Wang, Yiming Zhao, Scott A. Bortoff, Koichiro Ueda,
... real-time energy-optimal trajectory generation for a servomotor system that performs a single-axis point-to- ... positioning task for a fixed time interval. The servomotor system is subject to acceleration and speed constraints. ... of energy-optimal trajectories as references in a servomotor system does not compromise tracking performance but leads ...
Tópico(s): Robotic Path Planning Algorithms
2014 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Industrial Electronics
Ariel L. Camp, Henry C. Astley, A Horner, Thomas J. Roberts, Elizabeth L. Brainerd,
... in vitro setup using both fluoromicrometry and a servomotor. For fluoromicrometry to perfectly match the results of the servomotor, the relationship between the two measurements should be ... square error of the regression of fluoromicrometry versus servomotor muscle lengths. Fluoromicrometry was also accurate: the mean slope of the fluoromicrometry–servomotor regressions did not differ significantly from the ideal ...
Tópico(s): Sports injuries and prevention
2016 - Wiley | Journal of Experimental Zoology Part A Ecological Genetics and Physiology