Print Email Facebook Twitter Dynamic Compensation of the Effect of Gravity on a Force Illusion Device Title Dynamic Compensation of the Effect of Gravity on a Force Illusion Device Author Wever, J.W.M. Contributor Herder, J.L. (mentor) Dobbelsteen, J.J. (mentor) Faculty Mechanical, Maritime and Materials Engineering Department BioMechanical Engineering Programme BME Date 2013-07-24 Abstract A force illusion device is a portable mechanism that generates the illusion of an external force applied on the device. It has potential applicability as a navigation aid for blind or visually impaired people. Force illusion devices that use a cyclic translating mass to generate the illusion have one drawback. Their users will feel a moment caused by gravity acting on this moving mass. It is desired to compensate for this moment since it is likely to disturb the force illusion. This paper proposes an additional mechanism capable of partial moment compensation. A hypocycloid straight-line mechanism is selected from a variety of candidate mechanisms. A prototype of both the force illusion device and additional compensation mechanism is built to enable experimental validation. The dynamic measurements show that the mechanism behaves as is expected from the calculations. The hypocycloid mechanism adds little complexity with only 4 additional axis, yet reduces the gravitational moment with 80%. Subject dynamic balancing force illusion To reference this document use: http://resolver.tudelft.nl/uuid:befb3fd2-4982-4b78-ab90-e1eae716ee2b Embargo date 2013-09-12 Part of collection Student theses Document type master thesis Rights (c) 2013 Wever, J.W.M. Files PDF Thesis_Jack_Wever.pdf 11.1 MB Close viewer /islandora/object/uuid:befb3fd2-4982-4b78-ab90-e1eae716ee2b/datastream/OBJ/view