Durability Analysis of Helical Coil Spring in Vehicle Suspension Systems

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dc.contributor.authorKumar, Dhananjayen
dc.contributor.committeechairThangjitham, Suroten
dc.contributor.committeechairWest, Robert L.en
dc.contributor.committeememberCramer, Mark S.en
dc.contributor.departmentEngineering Science and Mechanicsen
dc.date.accessioned2021-11-12T05:14:07Zen
dc.date.available2021-11-12T05:14:07Zen
dc.date.issued2021-11-11en
dc.description.abstractThe suspension system in vehicles supports the vehicle's road stability and ride quality by scaling down the vibration responses resulting from road surface's roughness. This research focuses on fatigue life analysis of coil spring component. Static linear analysis is conducted on the 3D model of helical coil spring to investigate deformation and stress responses. Modal analysis evaluates the characteristics of vibration, i.e. natural resonance frequencies and corresponding mode shapes. The stress frequency response is generated after performing the harmonic analysis on the spring. Dynamics and performance of spring are analyzed over practical frequency range of 0 Hz to 200 Hz. Fatigue life estimation of vehicle suspension spring is performed using the stress data obtained from frequency response analysis. The stress-life (S-N) approach is utilized for fatigue life assessment of suspension spring. This durability analysis technique can be utilized in the automotive industry to improve reliability of vehicles. The outcome of this research can contribute in analysis and design of modern smart vehicles.en
dc.description.abstractgeneralThe suspension system in vehicles supports the vehicle's road stability and ride quality by scaling down the vibration responses resulting from road surface's roughness. This research focuses on the fatigue life analysis of suspension spring component. Initial phase of analysis is conducted to investigate the deformation and stress in 3D model of spring. Dynamics and performance of spring are analyzed over applicable frequency range of 0 Hz to 200 Hz. Fatigue life of vehicle suspension spring is evaluated using stress data from frequency response analysis. This durability analysis technique can be utilized in the automotive industry to improve reliability of vehicles. The outcome of this research can contribute in analysis and design of modern smart vehicles.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:32487en
dc.identifier.urihttp://hdl.handle.net/10919/106624en
dc.language.isoenen
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectHelical Coil Springen
dc.subjectSuspension Systemen
dc.subjectRoad Surface Roughnessen
dc.subjectLinear Systemen
dc.subjectVibrationen
dc.subjectFinite element methoden
dc.subjectModal Analysisen
dc.subjectFrequency Response Analysisen
dc.subjectStress-Life Approachen
dc.subjectDurabilityen
dc.subjectFatigue Life.en
dc.titleDurability Analysis of Helical Coil Spring in Vehicle Suspension Systemsen
dc.typeThesisen
thesis.degree.disciplineEngineering Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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