Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel Mechanism
A novel plane symmetric 2RUP<sub>a</sub>R-2RRU parallel mechanism with two translational and two rotational degrees of freedom is proposed， and it is can be used as the main body structure of a vibrating screen. The screw theory is applied to analyze its degrees of freedom and to identif...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2022-09-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.09.007 |
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| _version_ | 1841548875797626880 |
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| author | Linxian Che Bing He Jie Li Haiyi Jiang |
| author_facet | Linxian Che Bing He Jie Li Haiyi Jiang |
| author_sort | Linxian Che |
| collection | DOAJ |
| description | A novel plane symmetric 2RUP<sub>a</sub>R-2RRU parallel mechanism with two translational and two rotational degrees of freedom is proposed， and it is can be used as the main body structure of a vibrating screen. The screw theory is applied to analyze its degrees of freedom and to identify the motion characteristics. The displacement analysis model is established to obtain the analytical expressions of inverse displacement solutions to this mechanism. This study analyzes the velocity of the mechanism by means of the vector method and derives the input and output Jacobian matrices. On this basis， the possible singular configurations of the mechanism are investigated. The input and output transmission indices are used to evaluate the motion and force transmission performances of the mechanism. Furthermore， the definition， the numerical calculation method of the effective transmission orientation workspace and the effective transmission positional workspace （ETPW） are introduced. A constrained optimization model is constructed to formulate the design problem of dimensional parameters on the maximizing ETPW， and the differential evolutionary algorithm is employed to solve this problem. A case of dimensional optimization design of the mechanism is given to show that the presented model and algorithm are feasible and effective. The ETPW of the mechanism obtained by optimization design is better than that obtained by the experience design. |
| format | Article |
| id | doaj-art-fe2758779b5a49f6954e8a7435bf7847 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2022-09-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-fe2758779b5a49f6954e8a7435bf78472025-01-10T14:00:01ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392022-09-0146495830488100Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel MechanismLinxian CheBing HeJie LiHaiyi JiangA novel plane symmetric 2RUP<sub>a</sub>R-2RRU parallel mechanism with two translational and two rotational degrees of freedom is proposed， and it is can be used as the main body structure of a vibrating screen. The screw theory is applied to analyze its degrees of freedom and to identify the motion characteristics. The displacement analysis model is established to obtain the analytical expressions of inverse displacement solutions to this mechanism. This study analyzes the velocity of the mechanism by means of the vector method and derives the input and output Jacobian matrices. On this basis， the possible singular configurations of the mechanism are investigated. The input and output transmission indices are used to evaluate the motion and force transmission performances of the mechanism. Furthermore， the definition， the numerical calculation method of the effective transmission orientation workspace and the effective transmission positional workspace （ETPW） are introduced. A constrained optimization model is constructed to formulate the design problem of dimensional parameters on the maximizing ETPW， and the differential evolutionary algorithm is employed to solve this problem. A case of dimensional optimization design of the mechanism is given to show that the presented model and algorithm are feasible and effective. The ETPW of the mechanism obtained by optimization design is better than that obtained by the experience design.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.09.007Parallel mechanismDisplacement analysisSingular configurationPerformance indexDimensional parameters optimization |
| spellingShingle | Linxian Che Bing He Jie Li Haiyi Jiang Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel Mechanism Jixie chuandong Parallel mechanism Displacement analysis Singular configuration Performance index Dimensional parameters optimization |
| title | Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel Mechanism |
| title_full | Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel Mechanism |
| title_fullStr | Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel Mechanism |
| title_full_unstemmed | Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel Mechanism |
| title_short | Performance Analysis and Dimensional Optimization of 2RUP<sub>a</sub>R-2RRU Parallel Mechanism |
| title_sort | performance analysis and dimensional optimization of 2rup sub a sub r 2rru parallel mechanism |
| topic | Parallel mechanism Displacement analysis Singular configuration Performance index Dimensional parameters optimization |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.09.007 |
| work_keys_str_mv | AT linxianche performanceanalysisanddimensionaloptimizationof2rupsubasubr2rruparallelmechanism AT binghe performanceanalysisanddimensionaloptimizationof2rupsubasubr2rruparallelmechanism AT jieli performanceanalysisanddimensionaloptimizationof2rupsubasubr2rruparallelmechanism AT haiyijiang performanceanalysisanddimensionaloptimizationof2rupsubasubr2rruparallelmechanism |