{"id":{"repo_id":"ncsu","oai_identifier":"oai:repository.lib.ncsu.edu:1840.16/1940"},"canonical_url":"https://search.dev.ndltd.org/etd/ncsu/oai:repository.lib.ncsu.edu:1840.16/1940","repository":{"repo_id":"ncsu","name":"North Carolina State University","base_url":"https://repository.lib.ncsu.edu/server/oai/request"},"display":{"title":"Modeling of the Damping Contributions of O-rings in a Submergible Six-Axis Load Cell.","abstract":"The objective of this research is to provide general guidelines and calibration procedures to accurately model and improve the response time of submergible 6-axis load-cells based on multiple beam configurations sealed with compressible o-rings. This objective is achieved by adding a damping contribution to the existing stiffness model through an appropriate time derivative function. Data collection parameters are experimentally determined to control the noise and prevent the time derivative from becoming unstable. The effects of o-ring type and material properties on the stiffness of a particular submergible six-axis load cell are determined. Following the stiffness study, the damping matrix is derived from data collected during various loading cases, assuming that the damping effect can be modeled as constant in time. A comparison of the effect of material properties, results from stiffness tests, and other data are performed to determine their effect on the damping matrix. Finally, the assumption of constant damping is evaluated through the comparison of the modeled response to the measured system response.","abstract_html":"The objective of this research is to provide general guidelines and calibration procedures to accurately model and improve the response time of submergible 6-axis load-cells based on multiple beam configurations sealed with compressible o-rings. This objective is achieved by adding a damping contribution to the existing stiffness model through an appropriate time derivative function. Data collection parameters are experimentally determined to control the noise and prevent the time derivative from becoming unstable. The effects of o-ring type and material properties on the stiffness of a particular submergible six-axis load cell are determined. Following the stiffness study, the damping matrix is derived from data collected during various loading cases, assuming that the damping effect can be modeled as constant in time. A comparison of the effect of material properties, results from stiffness tests, and other data are performed to determine their effect on the damping matrix. Finally, the assumption of constant damping is evaluated through the comparison of the modeled response to the measured system response.","abstract_has_math":false,"creators":["Davis, Luke Allen"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Dr. Eric Klang, Committee Member","Dr. Eddie Grant, Committee Member","Dr. Kara Peters, Committee Chair"],"committee_chairs":[],"committee_members":[],"year":2006,"date_issued":"2006-04-28","date_published":"2006-04-28","updated_at":"2026-08-21T22:21:56Z","subjects":["Multi axis load cell","Six-Axis","Load Cell","damping","O-ring","O-rings","Submergible"],"languages":[],"rights":["I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. 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This objective is achieved by adding a damping contribution to the existing stiffness model through an appropriate time derivative function. Data collection parameters are experimentally determined to control the noise and prevent the time derivative from becoming unstable. The effects of o-ring type and material properties on the stiffness of a particular submergible six-axis load cell are determined. Following the stiffness study, the damping matrix is derived from data collected during various loading cases, assuming that the damping effect can be modeled as constant in time. A comparison of the effect of material properties, results from stiffness tests, and other data are performed to determine their effect on the damping matrix. Finally, the assumption of constant damping is evaluated through the comparison of the modeled response to the measured system response."]},{"key":"dc:format","label":"Dc Format","values":["Thesis (M.S.)--North Carolina State University."]},{"key":"dc:title","label":"Title","values":["Modeling of the Damping Contributions of O-rings in a Submergible Six-Axis Load Cell."]}]}],"canonical_facts":{"dc:contributor.advisor":["Dr. Eric Klang, Committee Member","Dr. Eddie Grant, Committee Member","Dr. Kara Peters, Committee Chair"],"dc:creator":["Davis, Luke Allen"],"dc:date.accessioned":["2010-04-02T18:09:01Z"],"dc:date.available":["2010-04-02T18:09:01Z"],"dc:date.issued":["2006-04-28"],"dc:description":["North Carolina State University Theses Mechanical and Aerospace Engineering."],"dc:description.abstract":["The objective of this research is to provide general guidelines and calibration procedures to accurately model and improve the response time of submergible 6-axis load-cells based on multiple beam configurations sealed with compressible o-rings. This objective is achieved by adding a damping contribution to the existing stiffness model through an appropriate time derivative function. Data collection parameters are experimentally determined to control the noise and prevent the time derivative from becoming unstable. The effects of o-ring type and material properties on the stiffness of a particular submergible six-axis load cell are determined. Following the stiffness study, the damping matrix is derived from data collected during various loading cases, assuming that the damping effect can be modeled as constant in time. A comparison of the effect of material properties, results from stiffness tests, and other data are performed to determine their effect on the damping matrix. 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I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report."],"dc:subject":["Multi axis load cell","Six-Axis","Load Cell","damping","O-ring","O-rings","Submergible"],"dc:title":["Modeling of the Damping Contributions of O-rings in a Submergible Six-Axis Load Cell."]},"updated_at":"2026-08-21T22:21:56Z"}