Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors
Disc-shaped mechanical energy absorbers (MEAs), in combination with rollover protection structures (ROPSs), may contribute to the prevention of the infringement of the safety zone and the collapse of the ROPS in case of the overturn of an agricultural tractor. An MEA can absorb a significant amount...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Agronomy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4395/11/12/2594 |
| _version_ | 1797506984227897344 |
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| author | Juan-Ignacio Latorre-Biel Amaya Pérez-Ezcurdia Marta Benito-Amurrio José Ramón Alfaro-López |
| author_facet | Juan-Ignacio Latorre-Biel Amaya Pérez-Ezcurdia Marta Benito-Amurrio José Ramón Alfaro-López |
| author_sort | Juan-Ignacio Latorre-Biel |
| collection | DOAJ |
| description | Disc-shaped mechanical energy absorbers (MEAs), in combination with rollover protection structures (ROPSs), may contribute to the prevention of the infringement of the safety zone and the collapse of the ROPS in case of the overturn of an agricultural tractor. An MEA can absorb a significant amount of potential energy of an overturning tractor and its deformation produces a rotation of the ROPS around the safety zone. In this research, MEAs with two different geometries have been developed. Both geometries present common features, such as disc dimensions, number of rings, and number of arms, but the distribution of the arms differs. Additionally, these MEA were manufactured in steel discs of four different thicknesses, ranging from 2 to 6 mm. The manufactured MEAs were tested in a universal testing machine, and their behavior characterized. From this data, linear models of the MEAs were developed. As a consequence, a number of characteristic parameters were selected and calculated, such as the activation load and the strain energy absorbed in a safe range of applied loads. Some patterns and trends were analyzed from the tested MEAs, which enables a better description of their behavior and the extrapolation of this behavior to other non-tested thicknesses and geometries. |
| first_indexed | 2024-03-10T04:40:15Z |
| format | Article |
| id | doaj.art-2292fb2f08de49de9751647c8e2150d0 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T04:40:15Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-2292fb2f08de49de9751647c8e2150d02023-11-23T03:24:22ZengMDPI AGAgronomy2073-43952021-12-011112259410.3390/agronomy11122594Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural TractorsJuan-Ignacio Latorre-Biel0Amaya Pérez-Ezcurdia1Marta Benito-Amurrio2José Ramón Alfaro-López3Institute of Smart Cities, Public University of Navarre, 31006 Pamplona, SpainDepartment of Engineering, Public University of Navarre, 31006 Pamplona, SpainDepartment of Engineering, Public University of Navarre, 31006 Pamplona, SpainDepartment of Engineering, Public University of Navarre, 31006 Pamplona, SpainDisc-shaped mechanical energy absorbers (MEAs), in combination with rollover protection structures (ROPSs), may contribute to the prevention of the infringement of the safety zone and the collapse of the ROPS in case of the overturn of an agricultural tractor. An MEA can absorb a significant amount of potential energy of an overturning tractor and its deformation produces a rotation of the ROPS around the safety zone. In this research, MEAs with two different geometries have been developed. Both geometries present common features, such as disc dimensions, number of rings, and number of arms, but the distribution of the arms differs. Additionally, these MEA were manufactured in steel discs of four different thicknesses, ranging from 2 to 6 mm. The manufactured MEAs were tested in a universal testing machine, and their behavior characterized. From this data, linear models of the MEAs were developed. As a consequence, a number of characteristic parameters were selected and calculated, such as the activation load and the strain energy absorbed in a safe range of applied loads. Some patterns and trends were analyzed from the tested MEAs, which enables a better description of their behavior and the extrapolation of this behavior to other non-tested thicknesses and geometries.https://www.mdpi.com/2073-4395/11/12/2594mechanical energy absorberdisc-shaped MEAstrain energyROPStensile testtractor overturn |
| spellingShingle | Juan-Ignacio Latorre-Biel Amaya Pérez-Ezcurdia Marta Benito-Amurrio José Ramón Alfaro-López Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors Agronomy mechanical energy absorber disc-shaped MEA strain energy ROPS tensile test tractor overturn |
| title | Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors |
| title_full | Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors |
| title_fullStr | Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors |
| title_full_unstemmed | Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors |
| title_short | Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors |
| title_sort | influence of geometry in the behavior of disc shaped mechanical energy absorbers for agricultural tractors |
| topic | mechanical energy absorber disc-shaped MEA strain energy ROPS tensile test tractor overturn |
| url | https://www.mdpi.com/2073-4395/11/12/2594 |
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