FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W258540322> ?p ?o ?g. }

• W258540322 abstract "Dynamical tests were performed for three different materials under several conditions of temperature and frequency. Tested materials were 40shore, 60shore and 90shore EPDM rubber, which are common materials used in the damping system analyzed in this project. The tests captured dissimilar behaviors, dependent on temperature and frequency, and content of carbon black. 90shore EPDM rubber contains most carbon black, and seemed to hold the stiffest properties, but anyway largest degree of damping. 40shore and 60shore EPDM rubber appeared to be considerably softer, probably due to less carbon black content, and with less damping. Most important material data obtained from the tests, i.e. storage modulus, loss modulus and phase angle among other factors, was converted to applicable parameters and used in simulations of the damping system. Simulation models were made up in order to approach the static and dynamic loads which the damping systems are exposed to during service. For some areas increased stresses appeared, basically for the steel parts, and those areas became important considerations in fatigue analysis. Wohler curves were plotted based on the ultimate tensile strength of the material and notches at the stressed area, among other factors. By calculating the effective stress amplitude using the Smith-Watson-Topper relationship, and compare with Wohler curves, lifetime of the most exposed steel parts could be estimated. The rubber dampers showed large strains due to their elastic properties. The strains were basically caused by deflections of the damping body, induced by vibrations of the outside rod body, and a compressive pre-stress of the rubber dampers. Maximum Principal Strains and strain energy density were captured from the simulations and used as parameters in lifetime calculations. The rubber dampers which were applied a compressive pre-stress exhibited increased strains and higher strain energy density, and consequently obtained shorter lifetime by the calculations. In order to run fatigue tests of the rubber dampers a test rig was designed and manufactured. The test rig is based on using an eccentric motor to induce vibrations. The rubber damper is mounted to the eccentric of the motor on a roller bearing, and prevented to rotate by two springs. The basic principle of the rig is circular movements of the rubber damper with high rotational speed, which on forehand is loaded by the springs. The pre-load of the springs is supposed to recreate a static service load. Then the vibrations during service are recreated by the alternating load due to circular movements. A compressive load is applied to the damper by using a turn buckle. Sufficient degrees of freedom to account for the eccentric are provided by two ball joints. Running several tests under different frequencies with the test rig made it possible to see some strain behavior of the rubber damper. The strains in the damper were monitored with a high velocity camera with capacity of capturing 19000frames per second." @default.
• W258540322 created "2016-06-24" @default.
• W258540322 creator A5014835730 @default.
• W258540322 date "2011-01-01" @default.
• W258540322 modified "2023-09-27" @default.
• W258540322 title "Lifetiime analysis and testing of silent tools damping system" @default.
• W258540322 hasPublicationYear "2011" @default.
• W258540322 type Work @default.
• W258540322 sameAs 258540322 @default.
• W258540322 citedByCount "0" @default.
• W258540322 crossrefType "dissertation" @default.
• W258540322 hasAuthorship W258540322A5014835730 @default.
• W258540322 hasConcept C112950240 @default.
• W258540322 hasConcept C121332964 @default.
• W258540322 hasConcept C124139854 @default.
• W258540322 hasConcept C127413603 @default.
• W258540322 hasConcept C138885662 @default.
• W258540322 hasConcept C140096630 @default.
• W258540322 hasConcept C159985019 @default.
• W258540322 hasConcept C176933379 @default.
• W258540322 hasConcept C191204318 @default.
• W258540322 hasConcept C192562407 @default.
• W258540322 hasConcept C193867417 @default.
• W258540322 hasConcept C198394728 @default.
• W258540322 hasConcept C204530211 @default.
• W258540322 hasConcept C21036866 @default.
• W258540322 hasConcept C24890656 @default.
• W258540322 hasConcept C41895202 @default.
• W258540322 hasConcept C44038986 @default.
• W258540322 hasConcept C521977710 @default.
• W258540322 hasConcept C66938386 @default.
• W258540322 hasConcept C7055690 @default.
• W258540322 hasConcept C92458943 @default.
• W258540322 hasConcept C97355855 @default.
• W258540322 hasConceptScore W258540322C112950240 @default.
• W258540322 hasConceptScore W258540322C121332964 @default.
• W258540322 hasConceptScore W258540322C124139854 @default.
• W258540322 hasConceptScore W258540322C127413603 @default.
• W258540322 hasConceptScore W258540322C138885662 @default.
• W258540322 hasConceptScore W258540322C140096630 @default.
• W258540322 hasConceptScore W258540322C159985019 @default.
• W258540322 hasConceptScore W258540322C176933379 @default.
• W258540322 hasConceptScore W258540322C191204318 @default.
• W258540322 hasConceptScore W258540322C192562407 @default.
• W258540322 hasConceptScore W258540322C193867417 @default.
• W258540322 hasConceptScore W258540322C198394728 @default.
• W258540322 hasConceptScore W258540322C204530211 @default.
• W258540322 hasConceptScore W258540322C21036866 @default.
• W258540322 hasConceptScore W258540322C24890656 @default.
• W258540322 hasConceptScore W258540322C41895202 @default.
• W258540322 hasConceptScore W258540322C44038986 @default.
• W258540322 hasConceptScore W258540322C521977710 @default.
• W258540322 hasConceptScore W258540322C66938386 @default.
• W258540322 hasConceptScore W258540322C7055690 @default.
• W258540322 hasConceptScore W258540322C92458943 @default.
• W258540322 hasConceptScore W258540322C97355855 @default.
• W258540322 hasLocation W2585403221 @default.
• W258540322 hasOpenAccess W258540322 @default.
• W258540322 hasPrimaryLocation W2585403221 @default.
• W258540322 hasRelatedWork W1964106683 @default.
• W258540322 hasRelatedWork W2046575218 @default.
• W258540322 hasRelatedWork W2140039959 @default.
• W258540322 hasRelatedWork W2198372806 @default.
• W258540322 hasRelatedWork W2206164766 @default.
• W258540322 hasRelatedWork W2328450652 @default.
• W258540322 hasRelatedWork W2348114003 @default.
• W258540322 hasRelatedWork W2354059700 @default.
• W258540322 hasRelatedWork W2366935666 @default.
• W258540322 hasRelatedWork W2375912196 @default.
• W258540322 hasRelatedWork W2378531426 @default.
• W258540322 hasRelatedWork W2381682027 @default.
• W258540322 hasRelatedWork W2381687982 @default.
• W258540322 hasRelatedWork W2388280598 @default.
• W258540322 hasRelatedWork W2391342420 @default.
• W258540322 hasRelatedWork W2552802562 @default.
• W258540322 hasRelatedWork W2801254815 @default.
• W258540322 hasRelatedWork W3197167170 @default.
• W258540322 hasRelatedWork W838834609 @default.
• W258540322 hasRelatedWork W871710169 @default.
• W258540322 isParatext "false" @default.
• W258540322 isRetracted "false" @default.
• W258540322 magId "258540322" @default.
• W258540322 workType "dissertation" @default.