Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel Mechanism
Taking a 4-PRPaR parallel mechanism with three translational and one rotational as the research object， the evolutionary multi-objective algorithm is applied to solve the dimensional synthesis problem of mechanism. The degree of freedom of mechanism is analyzed by means of constraint screw theory， a...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2021-07-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.009 |
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| _version_ | 1841547274356785152 |
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| author | Jian Yi Bing He Linxian Che Jie Li |
| author_facet | Jian Yi Bing He Linxian Che Jie Li |
| author_sort | Jian Yi |
| collection | DOAJ |
| description | Taking a 4-PRPaR parallel mechanism with three translational and one rotational as the research object， the evolutionary multi-objective algorithm is applied to solve the dimensional synthesis problem of mechanism. The degree of freedom of mechanism is analyzed by means of constraint screw theory， and the analytical expression of the inverse position solution of mechanism is given. These works can be foundations for the mechanism performance analysis. The evaluation indices for motion and force transmission performance of mechanism are established， and the definition of regular effective transmission workspace （RETW） and its average transmission indices are presented. A multi-objective optimization model is constructed to formulate the design problem of dimensional parameters on the maximizing radius of RETW and average transmission indices， and the fast and elitist multi-objective genetic algorithm combined with differential evolution algorithm is used to solve this problem. A real case of multi-objective optimization for dimensional parameters is given， and the result shows that the model and algorithm are feasible and effective. The research results can provide a theoretical basis for the practical application and the development of physical prototype. |
| format | Article |
| id | doaj-art-123ac79f11d0459e87cfc9bcc8315330 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2021-07-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-123ac79f11d0459e87cfc9bcc83153302025-01-10T14:48:27ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-07-0145606618847674Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel MechanismJian YiBing HeLinxian CheJie LiTaking a 4-PRPaR parallel mechanism with three translational and one rotational as the research object， the evolutionary multi-objective algorithm is applied to solve the dimensional synthesis problem of mechanism. The degree of freedom of mechanism is analyzed by means of constraint screw theory， and the analytical expression of the inverse position solution of mechanism is given. These works can be foundations for the mechanism performance analysis. The evaluation indices for motion and force transmission performance of mechanism are established， and the definition of regular effective transmission workspace （RETW） and its average transmission indices are presented. A multi-objective optimization model is constructed to formulate the design problem of dimensional parameters on the maximizing radius of RETW and average transmission indices， and the fast and elitist multi-objective genetic algorithm combined with differential evolution algorithm is used to solve this problem. A real case of multi-objective optimization for dimensional parameters is given， and the result shows that the model and algorithm are feasible and effective. The research results can provide a theoretical basis for the practical application and the development of physical prototype.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.009Parallel mechanismTransmission performance indexTransmission workspaceDimensional synthesisEvolutionary multi-objective algorithm |
| spellingShingle | Jian Yi Bing He Linxian Che Jie Li Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel Mechanism Jixie chuandong Parallel mechanism Transmission performance index Transmission workspace Dimensional synthesis Evolutionary multi-objective algorithm |
| title | Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel Mechanism |
| title_full | Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel Mechanism |
| title_fullStr | Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel Mechanism |
| title_full_unstemmed | Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel Mechanism |
| title_short | Multi-objective Optimization of Dimensional Parameter for 4-PRP<sub>a</sub>R Parallel Mechanism |
| title_sort | multi objective optimization of dimensional parameter for 4 prp sub a sub r parallel mechanism |
| topic | Parallel mechanism Transmission performance index Transmission workspace Dimensional synthesis Evolutionary multi-objective algorithm |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.009 |
| work_keys_str_mv | AT jianyi multiobjectiveoptimizationofdimensionalparameterfor4prpsubasubrparallelmechanism AT binghe multiobjectiveoptimizationofdimensionalparameterfor4prpsubasubrparallelmechanism AT linxianche multiobjectiveoptimizationofdimensionalparameterfor4prpsubasubrparallelmechanism AT jieli multiobjectiveoptimizationofdimensionalparameterfor4prpsubasubrparallelmechanism |