Analyses of Coupling Effect of Load Simulator of Aircraft Control Surface on Actuator Simulation Loop

Abstract:

At present the design of the aircraft control surface simulator is all about how to eliminate the redundant moment and increase the tracking accuracy of load simulator. In this paper, for the abnormal phenomena appeared in the semi-physical simulation loop of the load simulator, a simulation analysis was made to illustrate that there is a strong coupling effect between the load simulator and the actuator simulation loop, and increasing the tracking accuracy of load simulator simply can not eliminate the effect on the semi-physical simulation system. Therefore, there are some limitations in the design of load simulator based on its performance indexes only.

• Periodical: Advanced Materials Research (Volumes 466-467)
• Pages: 912-915
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.466-467.912
• Online since: February 2012
• Authors: Ju Tian, Cheng Wei Hu
• Keywords: Coupling, Digital Simulation, Load Simulator, Semi-Physical Simulation

References

[1] Ju Tian, Hefa Yang: Development of Passive load system, Hydraulic and pneumatic 2009. 8.

[2] Ju Tian, Dahai Pang : The load simulator design and calibration methods of aircraft control system, Journal of CAUC 2001, 12(1): 23-29.

[3] Ruibo Cao, Keqiang Zhao, Geqiang Li: Uncertainty analysis of electro-hydraulic load simulator torques control servo system, Machine tools and the hydraulic, 2006. 02 Fig. 1 The principle of load simula Fig. 2 Calibrated tracking curves of load simulator Fig. 3 Simplified transfer function block diagram of actuator simulation system Fig. 4 Transfer function block diagram with adding the load simulator into actuator simulation system （a） （b） Fig. 5 Property curve of stabilization loop（=0） （a） （b） Fig. 6 Property curve of stabilization loop（=－0. 006） （a） （b） Fig. 7 Property curve of stabilization loop （=－0. 007）.

DOI: 10.17816/0321-4443-111978-589860