Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism
Based on the structural characteristics of the multi-stage Planetary Roller Screw Mechanism (PRSM), the motion and force among the different stages are analyzed. In terms of the Newton's second law, the rigid-body motion equations of the multi-stage PRSM without considering the manufacturing an...
| Format: | Article |
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| Language: | zho |
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EDP Sciences
2020-10-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2020/05/jnwpu2020385p1001/jnwpu2020385p1001.html |
| _version_ | 1797426829520273408 |
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| collection | DOAJ |
| description | Based on the structural characteristics of the multi-stage Planetary Roller Screw Mechanism (PRSM), the motion and force among the different stages are analyzed. In terms of the Newton's second law, the rigid-body motion equations of the multi-stage PRSM without considering the manufacturing and assembly errors are derived. Then, the method for solving the motion equations is given. The forces acting on the parts in the multi-stage PRSM and the motion of the mechanism can be obtained from the present rigid-body dynamic model. The influence of the friction coefficients among the different stages on the dynamic characteristics of the multi-stage PRSM is discussed. The results show that the forces acting on the first-stage PRSM are larger than that acting on the second-stage PRSM, although the nominal radius of the screw in the first-stage PRSM is smaller. The friction coefficient between the nut and the screw in the different stages has the great influence on the efficiency of multi-stages PRSM with small helix angles, while that among the screws in the different stages has the slight effect on the efficiency. |
| first_indexed | 2024-03-09T08:35:32Z |
| format | Article |
| id | doaj.art-fee708f59f9c4c4b9a63fb83f2622f74 |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-09T08:35:32Z |
| publishDate | 2020-10-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-fee708f59f9c4c4b9a63fb83f2622f742023-12-02T18:33:33ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252020-10-013851001100910.1051/jnwpu/20203851001jnwpu2020385p1001Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism012345Shaanxi Engineering Laboratory for Transmissions and Controls, Northwestern Polytechnical UniversityShaanxi Engineering Laboratory for Transmissions and Controls, Northwestern Polytechnical UniversityChina Academy of Launch Vehicle TechnologyShaanxi Engineering Laboratory for Transmissions and Controls, Northwestern Polytechnical UniversityShaanxi Engineering Laboratory for Transmissions and Controls, Northwestern Polytechnical UniversityShaanxi Engineering Laboratory for Transmissions and Controls, Northwestern Polytechnical UniversityBased on the structural characteristics of the multi-stage Planetary Roller Screw Mechanism (PRSM), the motion and force among the different stages are analyzed. In terms of the Newton's second law, the rigid-body motion equations of the multi-stage PRSM without considering the manufacturing and assembly errors are derived. Then, the method for solving the motion equations is given. The forces acting on the parts in the multi-stage PRSM and the motion of the mechanism can be obtained from the present rigid-body dynamic model. The influence of the friction coefficients among the different stages on the dynamic characteristics of the multi-stage PRSM is discussed. The results show that the forces acting on the first-stage PRSM are larger than that acting on the second-stage PRSM, although the nominal radius of the screw in the first-stage PRSM is smaller. The friction coefficient between the nut and the screw in the different stages has the great influence on the efficiency of multi-stages PRSM with small helix angles, while that among the screws in the different stages has the slight effect on the efficiency.https://www.jnwpu.org/articles/jnwpu/full_html/2020/05/jnwpu2020385p1001/jnwpu2020385p1001.htmlmulti-stage planetary roller screw mechanismmotion analysisforce analysisdynamics |
| spellingShingle | Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism Xibei Gongye Daxue Xuebao multi-stage planetary roller screw mechanism motion analysis force analysis dynamics |
| title | Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism |
| title_full | Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism |
| title_fullStr | Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism |
| title_full_unstemmed | Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism |
| title_short | Rigid-Body Dynamic Analysis of Multi-Stage Planetary Roller Screw Mechanism |
| title_sort | rigid body dynamic analysis of multi stage planetary roller screw mechanism |
| topic | multi-stage planetary roller screw mechanism motion analysis force analysis dynamics |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2020/05/jnwpu2020385p1001/jnwpu2020385p1001.html |