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Nonlinear electromagnetic force analysis and compensation control of electromagnetic linear actuator
Physica Scripta, 2023Abstract Nonlinear electromagnetic force is a common phenomenon in electromagnetic linear actuators (EMLA). This nonlinearity limits the application in high-precision control systems. For facilitating the controller design, the influencing factors of nonlinear electromagnetic force were analyzed, and the quadratic polynomial with unknown
Peng Yu +5 more
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Electromagnetic Modeling of a Novel Linear Oscillating Actuator
IEEE Transactions on Magnetics, 2008Single-phase linear oscillating actuators (LOAs) produce short-stroke reciprocating motion, and, thus, have many applications. Feasible pole/tooth number combinations for single-phase tubular moving-magnet LOAs are identified and results from a study on a 2-pole LOA equipped with an E-cored stator, and quasi-Halbach magnetized and radially magnetized ...
Z.Q. Zhu, X. Chen, D. Howe, S. Iwasaki
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A New Electromagnetic Linear Actuator for Quick Latching
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation, 2006The traditional engine valve train in a combustion engine is the mechanically driven camshaft system that provides one-fixed valve timing. The variable valve timing (VVT), however, is highly required to achieve the significant improvement in fuel economy and lower emission.
Jinho Kim, Junghwan Chang
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Geometry of efficient Electromagnetic Linear actuators for flapping wing MAVs
Engineering Research Express, 2020Abstract A constraining factor in the development of flapping wing micro air vehicles (MAVs) is the power density and efficiency of actuators. Piezoelectric and rotary electromagnetic actuators have been shown to have functional power densities but can require mechanically complex transmissions to create flapping motion ...
Blake A McIvor +2 more
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Optimization of an axisymmetric linear electromagnetic valve actuator
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2009PurposeThe purpose of this paper is to describe the optimization of a permanent magnet linear actuator with soft magnetic mover for electromagnetic valve. The optimization is carried out with respect to the minimal magnetomotive force ensuring required minimum electromagnetic force on the mover.Design/methodology/approachThree optimization factors are ...
Yatchev, I., Gueorgiev, V., Hinov, K.
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Robust Design of Quadratic Electromagnetic Linear Actuator
Advanced Materials Research, 2012This paper describes the robust design of the Quadratic linear actuator. The linear actuator is higher efficiency than the existing rotary or reciprocating actuator. The linear actuator, however, has the inherent drawback of air gap variation because its linear motion is usually guided by springs and its dynamic performance is difficult to maintain ...
Jae Hee Kim, Jun Hyung Kim, Jin Ho Kim
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Sensorless position control of electromagnetic linear actuator
Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.04CH37510), 2004Sensorless principles utilize the transducer characteristics of actuators during excitation. As the measured data are extracted directly from the actuator, an additional sensor is not required. The information on the armature position of a solenoid can be found in its impedance.
D. Pawelczak, H.-R. Trankler
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Linear electromagnetic actuators for implantable artificial heart
1988Three kinds of linear electromagnetic actuator (LEA) have been designed and manufactured for use implantable artificial hearts.
Hajime Yamada +11 more
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Dynamics of an electromagnetic linear actuator operating in error actuated control system
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2007PurposeThe paper seeks to present an algorithm for a dynamical field‐circuit coupled simulation of an electromagnetic linear actuator operating in automated control systems.Design/methodology/approachThe mathematical model includes: a transient electromagnetic field formulation for a non‐linear conducting and moving medium, equations which describe the
Lech Nowak, Kazimierz Radziuk
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Development of a pneumatic-electromagnetic hybrid linear actuator with an integrated structure
2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2015Conventional hybrid actuators can achieve a better force/torque bandwidth than a single principle actuator without losing back-drivability. However, hybrid actuators occupy space at least equal to the sum of the volumes of two or more actuators and multiple transmissions consisting of timing belts, gears, links, tendons, or Bowden-cables.
Yoshihiro Nakata +3 more
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