Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic Subgrades
In this paper, a coupling nonlinear dynamic model of the drum and subgrade is established for the vibratory roller. The dynamic characteristics of the rigid drum of the vibratory roller in the process of vibratory compaction are comprehensively investigated by time history, phase diagram, frequency...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9589230 |
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| _version_ | 1832562849307688960 |
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| author | Lun Liu Fenghui Wang Shupeng Sun Weiming Feng Chao Guo |
| author_facet | Lun Liu Fenghui Wang Shupeng Sun Weiming Feng Chao Guo |
| author_sort | Lun Liu |
| collection | DOAJ |
| description | In this paper, a coupling nonlinear dynamic model of the drum and subgrade is established for the vibratory roller. The dynamic characteristics of the rigid drum of the vibratory roller in the process of vibratory compaction are comprehensively investigated by time history, phase diagram, frequency spectrum, Poincare map, and bifurcation diagram. During the compaction process, the stiffness of the subgrade increases and the motion of the rigid drum of the vibratory roller changes from a single period to multiple periods and finally enters chaos by the way of period doubling. Moreover, the roller parameters also significantly affect the dynamic characteristics of the rigid drum and the compaction effect of the subgrade. Based on detailed numerical results, a parameter adjustment strategy about the roller frequency and nominal amplitude is proposed, which can avoid the “bouncing” of the drum during compaction and improve the compaction efficiency. |
| format | Article |
| id | doaj-art-f953d18f86964b1e822b04842e39012f |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f953d18f86964b1e822b04842e39012f2025-02-03T01:21:46ZengWileyShock and Vibration1875-92032021-01-01202110.1155/2021/9589230Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic SubgradesLun Liu0Fenghui Wang1Shupeng Sun2Weiming Feng3Chao Guo4Institute of Dynamics and Control ScienceSchool of Civil EngineeringSchool of Civil EngineeringSchool of Civil EngineeringR&D CenterIn this paper, a coupling nonlinear dynamic model of the drum and subgrade is established for the vibratory roller. The dynamic characteristics of the rigid drum of the vibratory roller in the process of vibratory compaction are comprehensively investigated by time history, phase diagram, frequency spectrum, Poincare map, and bifurcation diagram. During the compaction process, the stiffness of the subgrade increases and the motion of the rigid drum of the vibratory roller changes from a single period to multiple periods and finally enters chaos by the way of period doubling. Moreover, the roller parameters also significantly affect the dynamic characteristics of the rigid drum and the compaction effect of the subgrade. Based on detailed numerical results, a parameter adjustment strategy about the roller frequency and nominal amplitude is proposed, which can avoid the “bouncing” of the drum during compaction and improve the compaction efficiency.http://dx.doi.org/10.1155/2021/9589230 |
| spellingShingle | Lun Liu Fenghui Wang Shupeng Sun Weiming Feng Chao Guo Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic Subgrades Shock and Vibration |
| title | Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic Subgrades |
| title_full | Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic Subgrades |
| title_fullStr | Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic Subgrades |
| title_full_unstemmed | Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic Subgrades |
| title_short | Nonlinear Dynamics of the Rigid Drum for Vibratory Roller on Elastic Subgrades |
| title_sort | nonlinear dynamics of the rigid drum for vibratory roller on elastic subgrades |
| url | http://dx.doi.org/10.1155/2021/9589230 |
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