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dc.contributor.advisorMaciel, Andersonpt_BR
dc.contributor.authorNovakoski, Emanuel Teribelept_BR
dc.date.accessioned2023-02-08T05:02:36Zpt_BR
dc.date.issued2022pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/254430pt_BR
dc.description.abstractIn this work we explore the haptic pendulum, a device originally developed in our VIS (Visualization, Interaction and Simulation) Lab to generate sensation of holding different weights in VR. The goal of the present project was to redesign and assess the device as a means to provide force and mobility to VR haptics. It is known in the research community that force feedback device designs prioritize a grounded construction, where the ground offers an inertial support to be able to produce force. This is not ideal for VR where free motion is desirable. While previous works offer some alternatives by attaching devices to body parts or using propellers, none of them proposed a 2 degrees-of-freedom mass displacement handheld controller. Our pendulum device consists of a mass that is driven by two servo motors on the surface of an imaginary hemisphere on top of the user’s hand. The motors and mass construction is fixed upon a standard VR controller (HTC Vive) that is held by the user that interacts in the virtual environment. The pendulum was rewired from the original weight percep tion configuration to convey directional impulses instead of weights. While weights are stable forces towards the floor, directional impulses are instantaneous forces in controlled directions. We then designed and conducted an experiment with users to assess how the impulse stimuli are perceived. We tested three dimensions for the system capabilities. The ability to convey different directions, different intensities and sequences of impulses. Results show that directions can be identified, although not precisely, that the intensities tested are mostly well identified, and that sequences of impulses are correctly perceived even with sub-second time interval between impulses.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.rightsOpen Accessen
dc.subjectHaptic interactionen
dc.subjectPêndulo hápticopt_BR
dc.subjectRealidade virtualpt_BR
dc.subjectVirtual Realityen
dc.subjectForce feedbacken
dc.titleTG2 : simulating haptic impact in immersive systemspt_BR
dc.typeTrabalho de conclusão de graduaçãopt_BR
dc.identifier.nrb001161319pt_BR
dc.degree.grantorUniversidade Federal do Rio Grande do Sulpt_BR
dc.degree.departmentInstituto de Informáticapt_BR
dc.degree.localPorto Alegre, BR-RSpt_BR
dc.degree.date2022pt_BR
dc.degree.graduationCiência da Computação: Ênfase em Ciência da Computação: Bachareladopt_BR
dc.degree.levelgraduaçãopt_BR


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