Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input Angles

By processing the rigid-body poses by the spherical four-bar rigid-body guidance mechanism in the standard installation position, it is found that the pose feature curves, which are generated by taking the processing to the output curves of the mechanism, lie on circles. The formation mechanism of p...

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Main Authors: Liu Wenrui, Si Haotian, Sun Jianwei
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2024-03-01
Series:Jixie chuandong
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Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.03.005
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author Liu Wenrui
Si Haotian
Sun Jianwei
author_facet Liu Wenrui
Si Haotian
Sun Jianwei
author_sort Liu Wenrui
collection DOAJ
description By processing the rigid-body poses by the spherical four-bar rigid-body guidance mechanism in the standard installation position, it is found that the pose feature curves, which are generated by taking the processing to the output curves of the mechanism, lie on circles. The formation mechanism of pose feature curves is analyzed, and the internal relationship between the center angle of the adjacent feature points on the pose feature circles and the coupler angle of the spherical four-bar mechanism is revealed. An input angles determination method is proposed for the spherical four-bar rigid body guidance mechanism in the standard installation position. Then, the method is extended to the spherical four-bar rigid-body guidance mechanism in a general installation position. By optimizing the installation angle parameters of the two-dimensional mechanism and the relative input angle of the two-dimensional mechanism to realize the input angles supplement of the spherical four-bar rigid-body guidance mechanism at the general installation position. Use numerical atlas method to solve the motion generation of the spherical four-bar mechanism without prescribed input angles. Finally, the feasibility and effectiveness of the proposed method are demonstrated by examples.
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institution Kabale University
issn 1004-2539
language zho
publishDate 2024-03-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-8e9c8310f09b46688d9a78a2cee8a3f92025-01-10T15:00:00ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392024-03-0148354450737544Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input AnglesLiu WenruiSi HaotianSun JianweiBy processing the rigid-body poses by the spherical four-bar rigid-body guidance mechanism in the standard installation position, it is found that the pose feature curves, which are generated by taking the processing to the output curves of the mechanism, lie on circles. The formation mechanism of pose feature curves is analyzed, and the internal relationship between the center angle of the adjacent feature points on the pose feature circles and the coupler angle of the spherical four-bar mechanism is revealed. An input angles determination method is proposed for the spherical four-bar rigid body guidance mechanism in the standard installation position. Then, the method is extended to the spherical four-bar rigid-body guidance mechanism in a general installation position. By optimizing the installation angle parameters of the two-dimensional mechanism and the relative input angle of the two-dimensional mechanism to realize the input angles supplement of the spherical four-bar rigid-body guidance mechanism at the general installation position. Use numerical atlas method to solve the motion generation of the spherical four-bar mechanism without prescribed input angles. Finally, the feasibility and effectiveness of the proposed method are demonstrated by examples.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.03.005Spherical four-bar mechanismPosition and pose characteristic circleWithout prescribed timingRigid-body guidance synthesis
spellingShingle Liu Wenrui
Si Haotian
Sun Jianwei
Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input Angles
Jixie chuandong
Spherical four-bar mechanism
Position and pose characteristic circle
Without prescribed timing
Rigid-body guidance synthesis
title Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input Angles
title_full Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input Angles
title_fullStr Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input Angles
title_full_unstemmed Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input Angles
title_short Dimensional Synthesis of Motion Generation of a Spherical Four-bar Mechanism Without Prescribed Input Angles
title_sort dimensional synthesis of motion generation of a spherical four bar mechanism without prescribed input angles
topic Spherical four-bar mechanism
Position and pose characteristic circle
Without prescribed timing
Rigid-body guidance synthesis
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.03.005
work_keys_str_mv AT liuwenrui dimensionalsynthesisofmotiongenerationofasphericalfourbarmechanismwithoutprescribedinputangles
AT sihaotian dimensionalsynthesisofmotiongenerationofasphericalfourbarmechanismwithoutprescribedinputangles
AT sunjianwei dimensionalsynthesisofmotiongenerationofasphericalfourbarmechanismwithoutprescribedinputangles