Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported Nut
The ball screw with a long stroke has small rigidity in radial direction and is very liable to resonate dramatically during operation at high speed. For improving the critical speed of the ball screw, this paper investigates the influence of the supporting stiffness of the screw shaft at the nut on...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2016-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20167002002 |
| _version_ | 1818332807306412032 |
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| author | Li Songwei Wang Min |
| author_facet | Li Songwei Wang Min |
| author_sort | Li Songwei |
| collection | DOAJ |
| description | The ball screw with a long stroke has small rigidity in radial direction and is very liable to resonate dramatically during operation at high speed. For improving the critical speed of the ball screw, this paper investigates the influence of the supporting stiffness of the screw shaft at the nut on the resonance frequency of the screw shaft in the radial direction. The screw shaft is modeled as an Euler-Bernoulli beam with elastic supports at both ends and the position of the nut. According to the established model, the relationship between the natural frequencies and the supporting stiffness of the shaft at the nut can be obtained. The simulation results show that the flexible support at the position of the nut can effectively increase the minimum natural frequencies and reduce the variation range of the natural frequencies over the travel range of the nut. It is conducive to the vibration suppression and the critical speed improvement of the ball strew. |
| first_indexed | 2024-12-13T13:41:36Z |
| format | Article |
| id | doaj.art-873d6a47425e4adfae6c0c3e8605a75a |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-13T13:41:36Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-873d6a47425e4adfae6c0c3e8605a75a2022-12-21T23:43:35ZengEDP SciencesMATEC Web of Conferences2261-236X2016-01-01700200210.1051/matecconf/20167002002matecconf_icmit2016_02002Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported NutLi SongweiWang MinThe ball screw with a long stroke has small rigidity in radial direction and is very liable to resonate dramatically during operation at high speed. For improving the critical speed of the ball screw, this paper investigates the influence of the supporting stiffness of the screw shaft at the nut on the resonance frequency of the screw shaft in the radial direction. The screw shaft is modeled as an Euler-Bernoulli beam with elastic supports at both ends and the position of the nut. According to the established model, the relationship between the natural frequencies and the supporting stiffness of the shaft at the nut can be obtained. The simulation results show that the flexible support at the position of the nut can effectively increase the minimum natural frequencies and reduce the variation range of the natural frequencies over the travel range of the nut. It is conducive to the vibration suppression and the critical speed improvement of the ball strew.http://dx.doi.org/10.1051/matecconf/20167002002 |
| spellingShingle | Li Songwei Wang Min Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported Nut MATEC Web of Conferences |
| title | Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported Nut |
| title_full | Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported Nut |
| title_fullStr | Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported Nut |
| title_full_unstemmed | Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported Nut |
| title_short | Improvement of the Critical Speed of the Ball Screw Mechanism by Using Flexible Supported Nut |
| title_sort | improvement of the critical speed of the ball screw mechanism by using flexible supported nut |
| url | http://dx.doi.org/10.1051/matecconf/20167002002 |
| work_keys_str_mv | AT lisongwei improvementofthecriticalspeedoftheballscrewmechanismbyusingflexiblesupportednut AT wangmin improvementofthecriticalspeedoftheballscrewmechanismbyusingflexiblesupportednut |