Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains
Aiming at the functional requirements of mobile mechanisms with multiple modes，a design scheme based on single-loop kinematic chains is proposed.Firstly，according to the single-loop freedom formula，the conditions satisfying the single-loop and can be active are determined，and the combination relatio...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2020-04-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2020.04.003 |
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| _version_ | 1841547417463291904 |
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| author | Zhang Chunyan Liu Xiangyu Ni Cong Lu Chenhui |
| author_facet | Zhang Chunyan Liu Xiangyu Ni Cong Lu Chenhui |
| author_sort | Zhang Chunyan |
| collection | DOAJ |
| description | Aiming at the functional requirements of mobile mechanisms with multiple modes，a design scheme based on single-loop kinematic chains is proposed.Firstly，according to the single-loop freedom formula，the conditions satisfying the single-loop and can be active are determined，and the combination relationships among the order of the constrained screw system，the number of bars，the number of kinematic pairs and the degree of freedom of the single-loop kinematic chains are obtained.Secondly，based on the screw theory，the geometric conditions of the axis of kinematic pairs under different constrained screw orders are obtained by using the virtual work principle.Taking the R and P pairs as the design units，all the possible combinations of the single-loop kinematic chains under different degrees of freedom are enumerated，and then the constructed single-loop kinematic chains are used as the body or branch to construct a kind of mobile mechanisms with multiple modes.Finally，the steps of type synthesis of mobile mechanisms with multiple modes and some design cases are given，which verifies the feasibility and practicability of the proposed design theory and design method. |
| format | Article |
| id | doaj-art-6faae15e7cb7408ea37bc55f87e4a829 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2020-04-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-6faae15e7cb7408ea37bc55f87e4a8292025-01-10T14:44:23ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392020-04-0144172531442576Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic ChainsZhang ChunyanLiu XiangyuNi CongLu ChenhuiAiming at the functional requirements of mobile mechanisms with multiple modes，a design scheme based on single-loop kinematic chains is proposed.Firstly，according to the single-loop freedom formula，the conditions satisfying the single-loop and can be active are determined，and the combination relationships among the order of the constrained screw system，the number of bars，the number of kinematic pairs and the degree of freedom of the single-loop kinematic chains are obtained.Secondly，based on the screw theory，the geometric conditions of the axis of kinematic pairs under different constrained screw orders are obtained by using the virtual work principle.Taking the R and P pairs as the design units，all the possible combinations of the single-loop kinematic chains under different degrees of freedom are enumerated，and then the constructed single-loop kinematic chains are used as the body or branch to construct a kind of mobile mechanisms with multiple modes.Finally，the steps of type synthesis of mobile mechanisms with multiple modes and some design cases are given，which verifies the feasibility and practicability of the proposed design theory and design method.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2020.04.003Single-loop kinematic chainsScrew theoryMobile mechanism with multiple modesType synthesisDegree of freedom |
| spellingShingle | Zhang Chunyan Liu Xiangyu Ni Cong Lu Chenhui Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains Jixie chuandong Single-loop kinematic chains Screw theory Mobile mechanism with multiple modes Type synthesis Degree of freedom |
| title | Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains |
| title_full | Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains |
| title_fullStr | Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains |
| title_full_unstemmed | Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains |
| title_short | Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains |
| title_sort | type synthesis of mobile mechanisms with multiple modes based on single loop kinematic chains |
| topic | Single-loop kinematic chains Screw theory Mobile mechanism with multiple modes Type synthesis Degree of freedom |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2020.04.003 |
| work_keys_str_mv | AT zhangchunyan typesynthesisofmobilemechanismswithmultiplemodesbasedonsingleloopkinematicchains AT liuxiangyu typesynthesisofmobilemechanismswithmultiplemodesbasedonsingleloopkinematicchains AT nicong typesynthesisofmobilemechanismswithmultiplemodesbasedonsingleloopkinematicchains AT luchenhui typesynthesisofmobilemechanismswithmultiplemodesbasedonsingleloopkinematicchains |