Expanding the Role of the Wind-Driven Manipulator

Paper #:
  • 975589

Published:
  • 1997-10-01
Citation:
Komerath, N., Ames, R., and Magill, J., "Expanding the Role of the Wind-Driven Manipulator," SAE Technical Paper 975589, 1997, https://doi.org/10.4271/975589.
Pages:
10
Abstract:
The wind-driven dynamic manipulator is a device which uses the wind tunnel freestream energy to drive multi-axis maneuvers of test models. This paper summarizes work performed using the device in several applications and discusses current work on characterizing the aerodynamics of an X-38 vehicle model in pitch-yaw maneuvers. Previous applications in flow visualization, adaptive control and linear-domain parameter identification are now extended to multi-axis inverse force and moment measurement over large ranges of attitude. A pitch-yaw-roll version is operated with active roll to measure forces and moments during maneuvers. A 3-D look-up table generated from direct force calibration allows operation of the manipulator through nonlinear regimes where control wing stall and boom wake-wing interactions are allowed to occur. Hybrid designs combining conventional and wind-driven degrees of freedom are discussed.
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