University of Twente Student Theses


Test of Rig for the Robird

Landman, E. (2016) Test of Rig for the Robird.

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Abstract:This bachelor thesis describes the design process of a test rig developed for the Robird, an ornithopter made by Clear Flight Solutions, that can be used for pest-bird control. The test rig that was build uses two Evans four-bar approximate straight line mechanisms, to allow for vertical translation and pitching. Torsion springs are used on the arms of the Evans mechanism to compensate for gravity acting on the Robird, while conical springs are used to prevent the Robird to get too far out of its equilibrium position. Tests to verify the proper functioning of the test rig found resonance, due to the increasing stiffness of the conical springs when compressed. To prevent the oscillations getting too large, the throttle is limited to 40%. Putting a higher pre-load on the torsion springs to prevent compressing the conical springs too much is recommended to prevent resonance from occurring. Various other improvements are suggested for a possible next version.
Item Type:Essay (Bachelor)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:53 electrotechnology
Programme:Electrical Engineering BSc (56953)
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