{"id":{"repo_id":"unlv","oai_identifier":"oai:oasis.library.unlv.edu:rtds-2252"},"canonical_url":"https://search.dev.ndltd.org/etd/unlv/oai:oasis.library.unlv.edu:rtds-2252","repository":{"repo_id":"unlv","name":"University of Nevada - Las Vegas","base_url":"https://oasis.library.unlv.edu/do/oai/"},"display":{"title":"The fixture and methodologies for evaluating vibration characteristics of hand-held pneumatic impact tools","abstract":"A test fixture has been designed for the testing of hand held pneumatic impact tools. The test fixture was modeled after a one-degree of freedom mass-spring-damper system. The design of the test fixture allows for a broad range of testing scenarios intended to simulate the methods in which impact tools are used in industry. Sustained use and assembly operations performed by impact tools were simulated on the test fixture. Acceleration measurements at the impact tool's handle and on the test fixture's mass were recorded during the simulations. From the measurements made on the test fixture's mass, the acceleration levels at the tool's working surface were calculated using a force balance model of the impact tool and the test fixture. From the acceleration measurements made at the impact tool's handle, vibration exposure levels were calculated for four and eight hour exposure time periods. Test procedures and methods incorporating the use of the test fixture are discussed. Results obtained during the testing process are provided.","abstract_html":"A test fixture has been designed for the testing of hand held pneumatic impact tools. The test fixture was modeled after a one-degree of freedom mass-spring-damper system. The design of the test fixture allows for a broad range of testing scenarios intended to simulate the methods in which impact tools are used in industry. Sustained use and assembly operations performed by impact tools were simulated on the test fixture. Acceleration measurements at the impact tool's handle and on the test fixture's mass were recorded during the simulations. From the measurements made on the test fixture's mass, the acceleration levels at the tool's working surface were calculated using a force balance model of the impact tool and the test fixture. From the acceleration measurements made at the impact tool's handle, vibration exposure levels were calculated for four and eight hour exposure time periods. Test procedures and methods incorporating the use of the test fixture are discussed. Results obtained during the testing process are provided.","abstract_has_math":false,"creators":["Markle, Jeffrey G"],"institution":"University of Nevada, Las Vegas","degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Douglas D. Reynolds"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001-01-01T08:00:00Z","date_published":"2001-01-01T08:00:00Z","updated_at":"2026-07-24T05:25:18Z","subjects":[],"languages":["English"],"rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://oasis.library.unlv.edu/rtds/1253"],"render_values":[{"text":"https://oasis.library.unlv.edu/rtds/1253","href":"https://oasis.library.unlv.edu/rtds/1253","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.25669/nvuu-h2g7","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Douglas D. 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Acceleration measurements at the impact tool's handle and on the test fixture's mass were recorded during the simulations. From the measurements made on the test fixture's mass, the acceleration levels at the tool's working surface were calculated using a force balance model of the impact tool and the test fixture. From the acceleration measurements made at the impact tool's handle, vibration exposure levels were calculated for four and eight hour exposure time periods. Test procedures and methods incorporating the use of the test fixture are discussed. Results obtained during the testing process are provided."]},{"key":"dc:format","label":"Dc Format","values":["pdf"]},{"key":"dc:title","label":"Title","values":["The fixture and methodologies for evaluating vibration characteristics of hand-held pneumatic impact tools"]}]}],"canonical_facts":{"dc:contributor":["Douglas D. 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