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dc.contributor.authorOng, Chin Guanen_US
dc.date.accessioned2014-03-14T20:32:26Z
dc.date.available2014-03-14T20:32:26Z
dc.date.issued2000-03-03en_US
dc.identifier.otheretd-03092000-16000052en_US
dc.identifier.urihttp://hdl.handle.net/10919/31433
dc.description.abstractThis research involves the study of a one- and two-cylinder convertible reciprocating Freon compressor for air conditioning or refrigeration purposes. The main concern is the reduction of the vibration (noise) caused during the operation of the compressor. Vibration is a main concern when the compressor is shifted from the one-cylinder operation to the two-cylinder operation mode and the reverse of this shift. The objectives for this research are (1) to investigate the shaking force due to the reciprocating mass at high frequencies, which are up to 4600 Hz (80w) in this research; (2) to determine the dominant force for compressor vibration among the three possible sources of shaking force due to reciprocating mass, impact forces due to clearance at the connecting rod - piston joint, and the z-axis force from the motor torque due to the rotor's conductor rods being skewed at an angle; (3) to minimize the difference in change of kinetic energies when switching between the one- and two-cylinder operating modes of the compressor. The properties of the vibration in one- and two-cylinder operation have been studied and results have been analyzed in terms of kinetic energies generated in different setting of operation of the compressor. Dynamic simulation for the impact force is computed using SIMULINK. The Z-axis force due to the motor is computed. Results indicated that shaking force due to the reciprocating mass is the dominant force for only the first two harmonics (w, 2w). An optimization routine based on Hooke and Jeeves pattern search method is developed and an optimized setting of angle, force, and torque for balancing of the crankshaft to achieve objective (3) is determined.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartMaster_thesis.pdfen_US
dc.rightsI hereby grant to Virginia Tech or its agents the right to archive and to make available my thesis or dissertation in whole or in part in the University Libraries in all forms of media, now or hereafter known. I retain all proprietary rights, such as patent rights. I also retain the right to use in future works (such as articles or books) all or part of this thesis or dissertation.en_US
dc.subjectshakingen_US
dc.subjectimpact forceen_US
dc.subjectslider-crank mechanismen_US
dc.subjectReciprocating compressoren_US
dc.subjectaccelerationen_US
dc.subjectoptimizationen_US
dc.titleShaking and Balance of a Convertible One- and Two-Cylinder Reciprocating Compressoren_US
dc.typeThesisen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.contributor.committeechairMitchiner, Reginald G.en_US
dc.contributor.committeememberReinholtz, Charles F.en_US
dc.contributor.committeememberKirk, R. Gordonen_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03092000-16000052/en_US
dc.date.sdate2000-03-09en_US
dc.date.rdate2001-03-10
dc.date.adate2000-03-10en_US


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