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Design, Analysis, and Verification of an Electro- Hydrostatic Actuator for Distributed Actuation System
- Source :
- Sensors, Vol 20, Iss 3, p 634 (2020), Sensors (Basel, Switzerland), Sensors, Volume 20, Issue 3
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- In order to provide a simplified and low-cost solution of the terminal for a distributed actuation system, this paper proposes an electro-hydrostatic actuator (EHA) based on the linear drive principle. The proposed actuator is directly driven by a linear pump with a collaborative rectification mechanism, whose performance relies on the collaboration of the internal two units. A pair of linear oscillating motors are employed to drive the two pump units respectively. The control of the actuator is based on the modulation of the oscillating amplitude, frequency, and phase difference of the two motors. The advantage of this actuator is that no more valve control is needed to rectify the linear pump besides the high efficiency of the direct pump drive. In this paper, both schematic and detailed structure of the actuator is presented. The kinematic and dynamic characteristics are analyzed and modeled, based on which the control method is proposed. The experiments verify the validity of the actuator structure and control.
- Subjects :
- 0209 industrial biotechnology
Computer science
02 engineering and technology
Kinematics
lcsh:Chemical technology
Biochemistry
Article
distributed actuation
Analytical Chemistry
law.invention
Computer Science::Robotics
collaborative rectification
020901 industrial engineering & automation
Rectification
Control theory
law
linear pump
lcsh:TP1-1185
Electrical and Electronic Engineering
Instrumentation
modulation control
Schematic
Electro-hydraulic actuator
021001 nanoscience & nanotechnology
direct drive
Atomic and Molecular Physics, and Optics
Mechanism (engineering)
Terminal (electronics)
Modulation
0210 nano-technology
Actuator
Subjects
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 20
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Sensors
- Accession number :
- edsair.doi.dedup.....cb298fae190edd4a43101b6e5dca59e9