Kinematic synthesis method and eccentricity effects of a Stephenson mechanism
<p>When implementing the technological process on crank presses, it is necessary to provide a predetermined working cycle of the slider motion: fast lifting, dwell, and slow lowering. The cycle cannot be realized without controlling the motor. In addition, using controllable motors increases t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2021-01-01
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| Series: | Mechanical Sciences |
| Online Access: | https://ms.copernicus.org/articles/12/1/2021/ms-12-1-2021.pdf |
| _version_ | 1818453976613388288 |
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| author | A. Tuleshov R. Halicioglu A. Shadymanova M. Kuatova M. Kuatova |
| author_facet | A. Tuleshov R. Halicioglu A. Shadymanova M. Kuatova M. Kuatova |
| author_sort | A. Tuleshov |
| collection | DOAJ |
| description | <p>When implementing the technological process on crank presses, it is
necessary to provide a predetermined working cycle of the slider motion:
fast lifting, dwell, and slow lowering. The cycle cannot be realized without
controlling the motor. In addition, using controllable motors increases the
manufacturing cost. Due to the geometric and kinematic capabilities of the
mechanism, changing the kinematics of the working link is the best choice.
Thanks to the use of the Stephenson II mechanism, the slider skew is
eliminated due to the parallel connecting rods and the increased area of
slider contact. This study presents a numerical method for kinematic
synthesis of the Stephenson mechanism that has kinematic advantages. The
method is based on mean square deviation which is the minimizing of an
objective function. Thanks to the proposed synthesis method, approximate
dwell movement can be performed when the slider is on the bottom dead
center. In this study, values of the crank length and parallel connecting
rods' lengths, angular coordinates of the crank and connecting rods, and the
eccentricity of the guide slider relative to the crank rotation axis were
obtained. It is observed that eccentricity affects the lower forward and
higher backward speed of the slider. The kinematic results of the slider
movement are comparatively presented in this article.</p> |
| first_indexed | 2024-12-14T21:47:33Z |
| format | Article |
| id | doaj.art-18200c13009b408fbf525c02d5bff1bc |
| institution | Directory Open Access Journal |
| issn | 2191-9151 2191-916X |
| language | English |
| last_indexed | 2024-12-14T21:47:33Z |
| publishDate | 2021-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Mechanical Sciences |
| spelling | doaj.art-18200c13009b408fbf525c02d5bff1bc2022-12-21T22:46:19ZengCopernicus PublicationsMechanical Sciences2191-91512191-916X2021-01-01121810.5194/ms-12-1-2021Kinematic synthesis method and eccentricity effects of a Stephenson mechanismA. Tuleshov0R. Halicioglu1A. Shadymanova2M. Kuatova3M. Kuatova4U. A. Joldasbekov Institute of Mechanics and Mechanical Engineering, Almaty, KazakhstanTurkish Machine Theory Association, TurkeyU. A. Joldasbekov Institute of Mechanics and Mechanical Engineering, Almaty, KazakhstanU. A. Joldasbekov Institute of Mechanics and Mechanical Engineering, Almaty, KazakhstanDepartment of Mechanics and Mathematics, Al-Farabi Kazakh National University, Almaty, Kazakhstan<p>When implementing the technological process on crank presses, it is necessary to provide a predetermined working cycle of the slider motion: fast lifting, dwell, and slow lowering. The cycle cannot be realized without controlling the motor. In addition, using controllable motors increases the manufacturing cost. Due to the geometric and kinematic capabilities of the mechanism, changing the kinematics of the working link is the best choice. Thanks to the use of the Stephenson II mechanism, the slider skew is eliminated due to the parallel connecting rods and the increased area of slider contact. This study presents a numerical method for kinematic synthesis of the Stephenson mechanism that has kinematic advantages. The method is based on mean square deviation which is the minimizing of an objective function. Thanks to the proposed synthesis method, approximate dwell movement can be performed when the slider is on the bottom dead center. In this study, values of the crank length and parallel connecting rods' lengths, angular coordinates of the crank and connecting rods, and the eccentricity of the guide slider relative to the crank rotation axis were obtained. It is observed that eccentricity affects the lower forward and higher backward speed of the slider. The kinematic results of the slider movement are comparatively presented in this article.</p>https://ms.copernicus.org/articles/12/1/2021/ms-12-1-2021.pdf |
| spellingShingle | A. Tuleshov R. Halicioglu A. Shadymanova M. Kuatova M. Kuatova Kinematic synthesis method and eccentricity effects of a Stephenson mechanism Mechanical Sciences |
| title | Kinematic synthesis method and eccentricity effects of a Stephenson mechanism |
| title_full | Kinematic synthesis method and eccentricity effects of a Stephenson mechanism |
| title_fullStr | Kinematic synthesis method and eccentricity effects of a Stephenson mechanism |
| title_full_unstemmed | Kinematic synthesis method and eccentricity effects of a Stephenson mechanism |
| title_short | Kinematic synthesis method and eccentricity effects of a Stephenson mechanism |
| title_sort | kinematic synthesis method and eccentricity effects of a stephenson mechanism |
| url | https://ms.copernicus.org/articles/12/1/2021/ms-12-1-2021.pdf |
| work_keys_str_mv | AT atuleshov kinematicsynthesismethodandeccentricityeffectsofastephensonmechanism AT rhalicioglu kinematicsynthesismethodandeccentricityeffectsofastephensonmechanism AT ashadymanova kinematicsynthesismethodandeccentricityeffectsofastephensonmechanism AT mkuatova kinematicsynthesismethodandeccentricityeffectsofastephensonmechanism AT mkuatova kinematicsynthesismethodandeccentricityeffectsofastephensonmechanism |