Abstract
With the development of key technologies about more/all electric aircraft, electro-hydrostatic actuator (EHA) is widely applied in aircraft actuation system. Dual-redundancy electro-hydrostatic actuator (DREHA) is easy to realize effortless redundancy design, and improve the reliability of its use in aircraft. The structure of a novel DREHA is presented, and then the working principle and the intrinsic force fighting phenomenon are analyzed. Ideally, the force fighting disappears by flow compensation. Simulating model cannot be identical with the actual DREHA system completely, so the parameter error is set factitiously in model, and a big force fighting is observed again. Aimed at the phenomenon of force fighting, force difference compensation control and cross-coupling control are proposed to eliminate force fighting based on the pressure of two channels. The results of co-simulation based on MATLAB and AMESim indicate that the controller designed to eliminate force fighting can strongly decrease the amplitude of force fighting and improve the system response speed greatly.
| Original language | English |
|---|---|
| Pages (from-to) | 270-276 |
| Number of pages | 7 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 43 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2017 |
Keywords
- Cross-coupling
- Dual-redundancy electro-hydrostatic actuator
- Force difference compensation
- Force equalization control
- Force fighting
Fingerprint
Dive into the research topics of 'Force equalization control for dual-redundancy electro-hydrostatic actuator'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver