A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain
In recent years, high-power and low-cylinder engines are widely used. These engines produce a strong torsional vibration due to engine combustion in the powertrain. In automatic transmissions, a lock-up clutch which connects the engine and the gear train directly is operated in low engine rotation s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2021-03-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/87/896/87_20-00431/_pdf/-char/en |
| _version_ | 1811308701335683072 |
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| author | Takahiro RYU Kenichiro MATSUZAKI Takashi NAKAE Junya OZAKI |
| author_facet | Takahiro RYU Kenichiro MATSUZAKI Takashi NAKAE Junya OZAKI |
| author_sort | Takahiro RYU |
| collection | DOAJ |
| description | In recent years, high-power and low-cylinder engines are widely used. These engines produce a strong torsional vibration due to engine combustion in the powertrain. In automatic transmissions, a lock-up clutch which connects the engine and the gear train directly is operated in low engine rotation speed for fuel economy. The lock-up clutch operation in the low engine rotation speed causes the increase of vibration due to the resonance. To suppress the torsional vibration, a lock-up damper, a torsional spring, is attached in the torque converter. Centrifugal pendulum vibration absorbers (CPVA) are also developed for the countermeasure. However, the natural frequency of the CPVA varies in the large amplitude due to the nonlinearity, and large size of the centrifugal pendulum vibration absorber is needed to increase the suppressive effect. To overcome these problems, a new centrifugal pendulum vibration absorber with slider crank chain (SCDA) is invented. In this paper, the equation of motion of the SCDA is derived, and the suppressive effect of the SCDA is discussed theoretically. It is found that (1) the nonlinear natural frequency of SCDA can be designed almost linearly with its optimal link length ratio, (2) the SCDA with optimal link length ratio can suppress the vibration amplitude effectively, and (3) the suppressive effect of SCDA is larger than that of the CPVA. |
| first_indexed | 2024-04-13T09:27:57Z |
| format | Article |
| id | doaj.art-9a36c68b55ad4c49a44ce32249d7844a |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-13T09:27:57Z |
| publishDate | 2021-03-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-9a36c68b55ad4c49a44ce32249d7844a2022-12-22T02:52:22ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612021-03-018789620-0043120-0043110.1299/transjsme.20-00431transjsmeA study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chainTakahiro RYU0Kenichiro MATSUZAKI1Takashi NAKAE2Junya OZAKI3Department of Innovative Engineering, Faculty of Science and Technology, Oita UniversityDepartment of Mechanical Engineering, Kagoshima University, Kagoshima UniversityDepartment of Innovative Engineering, Faculty of Science and Technology, Oita UniversityGraduate School of Engineering, Oita UniversityIn recent years, high-power and low-cylinder engines are widely used. These engines produce a strong torsional vibration due to engine combustion in the powertrain. In automatic transmissions, a lock-up clutch which connects the engine and the gear train directly is operated in low engine rotation speed for fuel economy. The lock-up clutch operation in the low engine rotation speed causes the increase of vibration due to the resonance. To suppress the torsional vibration, a lock-up damper, a torsional spring, is attached in the torque converter. Centrifugal pendulum vibration absorbers (CPVA) are also developed for the countermeasure. However, the natural frequency of the CPVA varies in the large amplitude due to the nonlinearity, and large size of the centrifugal pendulum vibration absorber is needed to increase the suppressive effect. To overcome these problems, a new centrifugal pendulum vibration absorber with slider crank chain (SCDA) is invented. In this paper, the equation of motion of the SCDA is derived, and the suppressive effect of the SCDA is discussed theoretically. It is found that (1) the nonlinear natural frequency of SCDA can be designed almost linearly with its optimal link length ratio, (2) the SCDA with optimal link length ratio can suppress the vibration amplitude effectively, and (3) the suppressive effect of SCDA is larger than that of the CPVA.https://www.jstage.jst.go.jp/article/transjsme/87/896/87_20-00431/_pdf/-char/envibration of rotating bodyautomatic transmissiontorsional vibrationcentrifugal pendulum vibration absorberslider crank chainnonlinear vibration |
| spellingShingle | Takahiro RYU Kenichiro MATSUZAKI Takashi NAKAE Junya OZAKI A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain Nihon Kikai Gakkai ronbunshu vibration of rotating body automatic transmission torsional vibration centrifugal pendulum vibration absorber slider crank chain nonlinear vibration |
| title | A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain |
| title_full | A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain |
| title_fullStr | A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain |
| title_full_unstemmed | A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain |
| title_short | A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain |
| title_sort | study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider crank chain |
| topic | vibration of rotating body automatic transmission torsional vibration centrifugal pendulum vibration absorber slider crank chain nonlinear vibration |
| url | https://www.jstage.jst.go.jp/article/transjsme/87/896/87_20-00431/_pdf/-char/en |
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