Publicación: DYNAMIC SYNTHESIS OF A CRANK-ROCKER MECHANISM MINIMIZING ITS JOINT-FORCES
| dc.creator | CLAUDIO NABIL VILLEGAS ULLOA | |
| dc.date | 2019 | |
| dc.date.accessioned | 2025-01-10T15:38:08Z | |
| dc.date.available | 2025-01-10T15:38:08Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | DYNAMIC JOINT-FORCES IN A MECHANISM PRODUCE VIBRATION AND WEAR, DECREASING ITS LIFE SPAN. MANY STUDIES HAVE BEEN CARRIED OUT ON OPTIMIZATION OF MECHANISMS DYNAMIC BEHAVIOUR; HOWEVER, FEW OF IT ARE FOCUSED ON THE REDUCTION OF JOINT-FORCES. THEREFORE, THIS WORK PRESENTS A METHOD TO OBTAIN THE LINK LENGTHS OF FUNCTION GENERATION FOUR-BAR LINKAGES, MINIMIZING THE MAXIMUM DYNAMIC FORCE IN THE JOINTS. THE STUDY ASSUMES THAT THE CRANK ROTATES WITH CONSTANT ANGULAR VELOCITY AND THE ROCKER MOVES A HIGH AMOUNT OF INERTIA BETWEEN TWO POSITIONS. HENCE, THE MECHANISM MASS AND INERTIA IS CONSIDERED NEGLIGIBLE. THE EQUATIONS OF MOTION ARE SET UP TOGETHER WITH DEAD-CENTER CONSTRUCTION METHOD AFTER ALT. TO ANALYZE THE BEHAVIOUR OF THE JOINT-FORCES, ALL THE EQUATIONS ARE PARAMETRIZED, FINDING OUT THAT THE MAXIMUM JOINT-FORCE IS MINIMIZABLE FOR EVERY TASK GIVEN. THE MINIMIZATION OF THE JOINT-FORCES IS ACHIEVED BY USING SIMPLE ALGORITHMS AS BISECTION AND REGULA-FALSI ILLINOIS. THE RESULTS SHOW THAT THIS METHOD REDUCES THE MAXIMAL JOINT-FORCE BY A MEAN VALUE OF 8.5%, WITH RESPECT TO THE DEAD-CENTER CONSTRUCTION METHOD WITH TRANSMISSION ANGLE MINIMIZATION. MOREOVER, FOR SOME TASKS, THE FORCE REDUCTION COULD REACH UP TO 60%. FURTHERMORE, THIS METHOD SOLVES THE PROBLEM OF NULL-LENGTH CRANK AND ROCKER FOR CENTRIC CRANK-ROCKER MECHANISMS, GENERATED BY THE TRANSMISSION ANGLE MINIMIZATION. | |
| dc.format | application/pdf | |
| dc.identifier.doi | 10.1007/978-3-030-20131-9_312 | |
| dc.identifier.issn | 2211-0984 | |
| dc.identifier.issn | 2211-0992 | |
| dc.identifier.uri | https://repositorio.ubiobio.cl/handle/123456789/12943 | |
| dc.language | spa | |
| dc.publisher | MECHANISMS AND MACHINE SCIENCE | |
| dc.relation.uri | 10.1007/978-3-030-20131-9_312 | |
| dc.rights | PUBLICADA | |
| dc.subject | REACTION FORCES | |
| dc.subject | FUNCTION GENERATOR | |
| dc.subject | FOUR-BAR LINKAGE | |
| dc.title | DYNAMIC SYNTHESIS OF A CRANK-ROCKER MECHANISM MINIMIZING ITS JOINT-FORCES | |
| dc.type | ARTÍCULO | |
| dspace.entity.type | Publication | |
| ubb.Estado | PUBLICADA | |
| ubb.Otra Reparticion | DEPARTAMENTO DE INGENIERIA MECANICA | |
| ubb.Sede | CONCEPCIÓN |
