{"id":{"repo_id":"rice","oai_identifier":"oai:repository.rice.edu:1911/115170"},"canonical_url":"https://search.dev.ndltd.org/etd/rice/oai:repository.rice.edu:1911/115170","repository":{"repo_id":"rice","name":"Rice University","base_url":"https://repository.rice.edu/server/oai/request"},"display":{"title":"Self-Actuated Vibration Through Mechanofluidic Instabilities Using Soft Wearable Devices","abstract":"Vibration is a widely used mode of haptic communication, as vibrotactile cues provide salient haptic notifications to users and are easily integrated into wearable or handheld devices. Fluidic textile-based devices offer an appealing platform for the incorporation of vibrotactile haptic feedback, as they can be integrated into clothing and other conforming and compliant wearables. However, fluidically driven vibrotactile feedback has primarily relied on valves to regulate actuating frequencies in wearable devices. The mechanical bandwidth of such valves limits the achievable range of frequencies that can be realized, particularly at the higher frequencies that are typically reached with electromechanical vibration actuators (>100 Hz). In this thesis, we introduce two soft vibrotactile wearable devices, the first comprised of a hybrid mix of elastomers and textiles and the second completely of textiles, with each capable of rendering vibration at high frequencies and amplitudes. We describe our methods of design and fabrication and the mechanism of vibration, which is realized by controlling inlet pressure and harnessing a mechanofluidic instability. Our designs allow for controllable vibrotactile feedback that is comparable in frequency and outperforms in amplitude relative to state-of-the-art electromechanical actuators while offering the compliance and conformity of fully soft wearable devices.","abstract_html":"Vibration is a widely used mode of haptic communication, as vibrotactile cues provide salient haptic notifications to users and are easily integrated into wearable or handheld devices. Fluidic textile-based devices offer an appealing platform for the incorporation of vibrotactile haptic feedback, as they can be integrated into clothing and other conforming and compliant wearables. However, fluidically driven vibrotactile feedback has primarily relied on valves to regulate actuating frequencies in wearable devices. The mechanical bandwidth of such valves limits the achievable range of frequencies that can be realized, particularly at the higher frequencies that are typically reached with electromechanical vibration actuators (>100 Hz). In this thesis, we introduce two soft vibrotactile wearable devices, the first comprised of a hybrid mix of elastomers and textiles and the second completely of textiles, with each capable of rendering vibration at high frequencies and amplitudes. We describe our methods of design and fabrication and the mechanism of vibration, which is realized by controlling inlet pressure and harnessing a mechanofluidic instability. Our designs allow for controllable vibrotactile feedback that is comparable in frequency and outperforms in amplitude relative to state-of-the-art electromechanical actuators while offering the compliance and conformity of fully soft wearable devices.","abstract_has_math":false,"creators":["Fino, Nathaniel Wallace"],"institution":"Rice University","degree_name":"Master of Science","degree_level":"Masters","degree_discipline":"Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["O'Malley, Marcia K"],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-04-20","date_published":"2023-04-20","updated_at":"2026-07-24T04:10:28Z","subjects":["Vibration Devices","Haptic Devices","Soft Robotics","Wearable Haptics"],"languages":["eng"],"rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1911/115170","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["O'Malley, Marcia K"]},{"key":"dc:creator","label":"Author","values":["Fino, Nathaniel Wallace"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2023-08-09T19:09:38Z"]},{"key":"dc:date.issued","label":"Date","values":["2023-04-20"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Rice University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Vibration Devices","Haptic Devices","Soft Robotics","Wearable Haptics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1911/115170"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Vibration is a widely used mode of haptic communication, as vibrotactile cues provide salient haptic notifications to users and are easily integrated into wearable or handheld devices. Fluidic textile-based devices offer an appealing platform for the incorporation of vibrotactile haptic feedback, as they can be integrated into clothing and other conforming and compliant wearables. However, fluidically driven vibrotactile feedback has primarily relied on valves to regulate actuating frequencies in wearable devices. The mechanical bandwidth of such valves limits the achievable range of frequencies that can be realized, particularly at the higher frequencies that are typically reached with electromechanical vibration actuators (>100 Hz). In this thesis, we introduce two soft vibrotactile wearable devices, the first comprised of a hybrid mix of elastomers and textiles and the second completely of textiles, with each capable of rendering vibration at high frequencies and amplitudes. We describe our methods of design and fabrication and the mechanism of vibration, which is realized by controlling inlet pressure and harnessing a mechanofluidic instability. Our designs allow for controllable vibrotactile feedback that is comparable in frequency and outperforms in amplitude relative to state-of-the-art electromechanical actuators while offering the compliance and conformity of fully soft wearable devices."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Self-Actuated Vibration Through Mechanofluidic Instabilities Using Soft Wearable Devices"]}]}],"canonical_facts":{"dc:contributor.advisor":["O'Malley, Marcia K"],"dc:creator":["Fino, Nathaniel Wallace"],"dc:date.accessioned":["2023-08-09T19:09:38Z"],"dc:date.issued":["2023-04-20"],"dc:description.abstract":["Vibration is a widely used mode of haptic communication, as vibrotactile cues provide salient haptic notifications to users and are easily integrated into wearable or handheld devices. Fluidic textile-based devices offer an appealing platform for the incorporation of vibrotactile haptic feedback, as they can be integrated into clothing and other conforming and compliant wearables. However, fluidically driven vibrotactile feedback has primarily relied on valves to regulate actuating frequencies in wearable devices. The mechanical bandwidth of such valves limits the achievable range of frequencies that can be realized, particularly at the higher frequencies that are typically reached with electromechanical vibration actuators (>100 Hz). In this thesis, we introduce two soft vibrotactile wearable devices, the first comprised of a hybrid mix of elastomers and textiles and the second completely of textiles, with each capable of rendering vibration at high frequencies and amplitudes. We describe our methods of design and fabrication and the mechanism of vibration, which is realized by controlling inlet pressure and harnessing a mechanofluidic instability. Our designs allow for controllable vibrotactile feedback that is comparable in frequency and outperforms in amplitude relative to state-of-the-art electromechanical actuators while offering the compliance and conformity of fully soft wearable devices."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["https://hdl.handle.net/1911/115170"],"dc:language.iso":["eng"],"dc:rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"dc:subject":["Vibration Devices","Haptic Devices","Soft Robotics","Wearable Haptics"],"dc:title":["Self-Actuated Vibration Through Mechanofluidic Instabilities Using Soft Wearable Devices"],"dc:type":["Thesis"],"thesis:degree_discipline":["Engineering"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Rice University"]},"updated_at":"2026-07-24T04:10:28Z"}