Development of a Cost Oriented Grinding Strategy and Prediction of Post Grind Roughness using Improved Grinder Models

dc.contributor.authorSrinivasan, Sriramen
dc.contributor.committeechairFerris, John B.en
dc.contributor.committeememberSandu, Corinaen
dc.contributor.committeememberTaheri, Saieden
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2017-07-01T08:01:14Zen
dc.date.available2017-07-01T08:01:14Zen
dc.date.issued2017-06-30en
dc.description.abstractIrregularities in pavement profiles that exceed standard thresholds are usually rectified using a Diamond Grinding Process. Diamond Grinding is a method of Concrete Pavement Rehabilitation that involves the use of grinding wheels mounted on a machine that scraps off the top surface of the pavement to smooth irregularities. Profile Analysis Software like ProVAL© offers simulation modules that allow users to investigate various grinding strategies and prepare a corrective action plan for the pavement. The major drawback with the current Smoothness Assurance Module© (SAM) in ProVAL© is that it provides numerous grind locations which are both redundant and not feasible in the field. This problem can be overcome by providing a constrained grinding model in which a cost function is minimized; the resulting grinding strategy satisfies requirements at the least possible cost. Another drawback with SAM exists in the built-in grinder models that do not factor in the effect of speed and depth of cut on the grinding head. High speeds or deep cuts will result in the grinding head riding out the cut and likely worsening the roughness. A constrained grinding strategy algorithm with grinder models that factor in speed and depth of cut that results in cost effective grinding with better prediction of post grind surfaces through simulation is developed in this work. The outcome of the developed algorithm is compared to ProVAL's© SAM results.en
dc.description.abstractgeneralIrregularities in road surfaces that exceed government standards are usually rectified using a Diamond Grinding Process. Diamond Grinding is a method of Concrete Pavement Rehabilitation that involves the use of grinding wheels mounted on a machine that scraps off the top surface of the pavement to smooth irregularities. The work aims to develop a computer program that can carry out simulations of the grinding process for engineers to use before actual grinding in the field. The developed program is then compared against industry standard simulators to obtain improvements.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:11253en
dc.identifier.urihttp://hdl.handle.net/10919/78298en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPavement Profilesen
dc.subjectDiamond Grindingen
dc.subjectPavement Rehabilitationen
dc.subjectGrinding Strategyen
dc.subjectGenetic Algorithm Applicationen
dc.titleDevelopment of a Cost Oriented Grinding Strategy and Prediction of Post Grind Roughness using Improved Grinder Modelsen
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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