Optimal design of passive momentum exchange impact damper utilizing mechanical singularity
When a mechanical system collides with the ground, the impact force may cause damage to its components. Generally, springs and elastic members are installed to prevent the impact. However, it is difficult to overcome this problem because hard springs have a large mass, a spring with a large mass can...
| Main Authors: | , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2023-04-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/89/920/89_22-00291/_pdf/-char/en |
| _version_ | 1797817441035747328 |
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| author | Masafumi OKADA Hiroaki KUROSU |
| author_facet | Masafumi OKADA Hiroaki KUROSU |
| author_sort | Masafumi OKADA |
| collection | DOAJ |
| description | When a mechanical system collides with the ground, the impact force may cause damage to its components. Generally, springs and elastic members are installed to prevent the impact. However, it is difficult to overcome this problem because hard springs have a large mass, a spring with a large mass cannot suppress the impact force, and the energy stored in the spring has to be dissipated. On the other hand, Momentum Exchange Impact Damper (MEID) aims to reduce the momentum of the main body by transferring momentum to the weight, and are effective for shock mitigation. From this point of view, we have proposed a passive MEID so far. This is a passive mechanism that achieves momentum exchange and prevents the propagation of the impulsive force by utilizing the singularity of the mechanism. The mechanism does not require any additional actuators or sensors, and is extremely effective in mitigating the impact force. However, there is a problem that the acceleration generated in the body during the motion of the mechanism is not small. In this paper, we propose a passive MEID that reduces the acceleration generated in the main body by changing the constraint of the mechanism, and design it by optimization. The effectiveness of the proposed mechanism is verified through experiments using a prototype. |
| first_indexed | 2024-03-13T08:53:25Z |
| format | Article |
| id | doaj.art-9181fe673d4946aeb44bae91cc879cf4 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-03-13T08:53:25Z |
| publishDate | 2023-04-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-9181fe673d4946aeb44bae91cc879cf42023-05-29T07:32:54ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612023-04-018992022-0029122-0029110.1299/transjsme.22-00291transjsmeOptimal design of passive momentum exchange impact damper utilizing mechanical singularityMasafumi OKADA0Hiroaki KUROSU1Department of Mechanical Engineering, Tokyo Institute of TechnologyDepartment of Mechanical Engineering, Tokyo Institute of TechnologyWhen a mechanical system collides with the ground, the impact force may cause damage to its components. Generally, springs and elastic members are installed to prevent the impact. However, it is difficult to overcome this problem because hard springs have a large mass, a spring with a large mass cannot suppress the impact force, and the energy stored in the spring has to be dissipated. On the other hand, Momentum Exchange Impact Damper (MEID) aims to reduce the momentum of the main body by transferring momentum to the weight, and are effective for shock mitigation. From this point of view, we have proposed a passive MEID so far. This is a passive mechanism that achieves momentum exchange and prevents the propagation of the impulsive force by utilizing the singularity of the mechanism. The mechanism does not require any additional actuators or sensors, and is extremely effective in mitigating the impact force. However, there is a problem that the acceleration generated in the body during the motion of the mechanism is not small. In this paper, we propose a passive MEID that reduces the acceleration generated in the main body by changing the constraint of the mechanism, and design it by optimization. The effectiveness of the proposed mechanism is verified through experiments using a prototype.https://www.jstage.jst.go.jp/article/transjsme/89/920/89_22-00291/_pdf/-char/enpassive meidimpact mitigationmechanical singularityacceleration reductionoptimal design |
| spellingShingle | Masafumi OKADA Hiroaki KUROSU Optimal design of passive momentum exchange impact damper utilizing mechanical singularity Nihon Kikai Gakkai ronbunshu passive meid impact mitigation mechanical singularity acceleration reduction optimal design |
| title | Optimal design of passive momentum exchange impact damper utilizing mechanical singularity |
| title_full | Optimal design of passive momentum exchange impact damper utilizing mechanical singularity |
| title_fullStr | Optimal design of passive momentum exchange impact damper utilizing mechanical singularity |
| title_full_unstemmed | Optimal design of passive momentum exchange impact damper utilizing mechanical singularity |
| title_short | Optimal design of passive momentum exchange impact damper utilizing mechanical singularity |
| title_sort | optimal design of passive momentum exchange impact damper utilizing mechanical singularity |
| topic | passive meid impact mitigation mechanical singularity acceleration reduction optimal design |
| url | https://www.jstage.jst.go.jp/article/transjsme/89/920/89_22-00291/_pdf/-char/en |
| work_keys_str_mv | AT masafumiokada optimaldesignofpassivemomentumexchangeimpactdamperutilizingmechanicalsingularity AT hiroakikurosu optimaldesignofpassivemomentumexchangeimpactdamperutilizingmechanicalsingularity |