Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experiment
In this study, a novel curved Euler beam quasi-zero stiffness (CE-QZS) isolator is proposed by limiting the displacement of the curved Euler beam to change its deformation mode, and the excellent vibration isolation properties are presented. The static and dynamic properties and parameter influences...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2024-11-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/16878132241302036 |
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| _version_ | 1846150487810768896 |
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| author | Xiaoqiang Chong Zhijing Wu |
| author_facet | Xiaoqiang Chong Zhijing Wu |
| author_sort | Xiaoqiang Chong |
| collection | DOAJ |
| description | In this study, a novel curved Euler beam quasi-zero stiffness (CE-QZS) isolator is proposed by limiting the displacement of the curved Euler beam to change its deformation mode, and the excellent vibration isolation properties are presented. The static and dynamic properties and parameter influences are investigated to identify the isolation mechanism of the novel isolator through numerical simulation using the finite element analysis. These studies of the proposed structure show that compared to the curved Euler beam structure, the bearing capacity and quasi-zero stiffness (QZS) range of the CE-QZS isolator have been significantly improved, and the original negative stiffness of the curved Euler beam is eliminated. Moreover, by changing the position of the rails, the position of the QZS range can be altered, allowing for full utilization of the structural space. Furthermore, the bearing capacity, working range, and QZS range of the CE-QZS isolator can be designed by adjusting the spring stiffness and geometric dimensions of the curved Euler beam. The experimental prototype is machined to conduct vibration tests that confirm the accuracy of the simulation analysis and the superiority of the proposed structure. |
| format | Article |
| id | doaj-art-bfa5f7eb47a849cb936562d56a7e5108 |
| institution | Kabale University |
| issn | 1687-8140 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj-art-bfa5f7eb47a849cb936562d56a7e51082024-11-28T18:03:30ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402024-11-011610.1177/16878132241302036Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experimentXiaoqiang Chong0Zhijing Wu1National Key Laboratory of Strength and Structural Integrity, Aircraft Strength Research Institute of China, Xi’an, Shaanxi, PR ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, PR ChinaIn this study, a novel curved Euler beam quasi-zero stiffness (CE-QZS) isolator is proposed by limiting the displacement of the curved Euler beam to change its deformation mode, and the excellent vibration isolation properties are presented. The static and dynamic properties and parameter influences are investigated to identify the isolation mechanism of the novel isolator through numerical simulation using the finite element analysis. These studies of the proposed structure show that compared to the curved Euler beam structure, the bearing capacity and quasi-zero stiffness (QZS) range of the CE-QZS isolator have been significantly improved, and the original negative stiffness of the curved Euler beam is eliminated. Moreover, by changing the position of the rails, the position of the QZS range can be altered, allowing for full utilization of the structural space. Furthermore, the bearing capacity, working range, and QZS range of the CE-QZS isolator can be designed by adjusting the spring stiffness and geometric dimensions of the curved Euler beam. The experimental prototype is machined to conduct vibration tests that confirm the accuracy of the simulation analysis and the superiority of the proposed structure.https://doi.org/10.1177/16878132241302036 |
| spellingShingle | Xiaoqiang Chong Zhijing Wu Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experiment Advances in Mechanical Engineering |
| title | Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experiment |
| title_full | Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experiment |
| title_fullStr | Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experiment |
| title_full_unstemmed | Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experiment |
| title_short | Excellent vibration isolation properties of a curved Euler beam QZS isolator: Simulation and experiment |
| title_sort | excellent vibration isolation properties of a curved euler beam qzs isolator simulation and experiment |
| url | https://doi.org/10.1177/16878132241302036 |
| work_keys_str_mv | AT xiaoqiangchong excellentvibrationisolationpropertiesofacurvedeulerbeamqzsisolatorsimulationandexperiment AT zhijingwu excellentvibrationisolationpropertiesofacurvedeulerbeamqzsisolatorsimulationandexperiment |