Design of Large Single-Mobility Surface-Deployable Mechanism Using Irregularly Shaped Triangular Prismoid Modules

Huang, Hailin; Li, Bing; Zhang, Tieshan; Zhang, Zhao; Qi, Xiaozhi; Hu, Ying

doi:10.1115/1.4041178

Cited by 28 publications

(14 citation statements)

References 17 publications

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“…If driving cam moves according to Equation (11), point G can form a projection trajectory on O 1 -X 1 Y 1 plane. With the driving cam rotates ϕ angle according to Equation (14), the projection of point G moves to point G' on O 1 -X 1 Y 1 plane. According to coordinate transformation of Cartesian coordinate system, the coordinate of point G' relative to O 2 -X 2 Y 2 plane is:…”

Section: Motion Positioning Groovementioning

confidence: 99%

“…With the introduction of flexible components, a rigid-flexible coupling state was appeared in the deployable mechanism [10]. The related design methods such as graph theory, flow value method, bionics method, and topology method were also reported [11][12][13][14]. The reports of these deployable mechanisms emphasized the final shape that can be maintained after deployed, but the dynamically changing shape that can be maintained in the process of deploying was not the focus of research.…”

Section: Introductionmentioning

confidence: 99%

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Design and Experiment of Symmetrical Shape Deployable Arc Profiling Mechanism Based on Composite Multi-Cam Structure

Yang

Duan

et al. 2019

Symmetry

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At present, there are few reports on the profiling mechanism that can achieve surface envelope profiling along the surface of a shaft whose radius is constantly changing. Existing profiling mechanisms cannot achieve this function. To this end, a novel deployable arc profiling mechanism is presented in this paper. The mechanism can realize centering deployment along the shaft with a changing radius. The radius of the deployable arc can be adapted to the continuous change of shaft radius, and its surface can always maintain the arc shape for surface envelope profiling. The mechanism is mainly composed of compound cams. Each cam contains multiple grooves, and each groove connects to an arc support linkage. The arc support linkage is controlled by the compound motion of cams in different layers. The pitch curve of each groove is designed by applying the method of relative motion and inverse solution and obtained various parameter equations of the mechanism. The feasibility of this mechanism is verified by analysis, experiment, and application test. The results show that the proposed deployable arc profiling mechanism can achieve the design purpose and the profiling accuracy is kept above 96.425%.

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Section: Motion Positioning Groovementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Experiment of Symmetrical Shape Deployable Arc Profiling Mechanism Based on Composite Multi-Cam Structure

Yang

Duan

et al. 2019

Symmetry

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show abstract

“…Therefore, for a loop, the lengths of the links of GAEs II can be obtained from Eqs. (23) and (24) as long as the angles are given.…”

Section: Angle Constraint Conditions Of the Deployment Axesmentioning

confidence: 99%

“…Shieh [21] presented deployable mechanisms based on a planar four-bar linkage. Huang et al [22,23] proposed deployable mechanisms derived from the threefold-symmetric deployable Bricard mechanism and irregularly shaped triangular prismoid units. Qi et al [24] proposed a class of large deployable mechanisms based on plane-symmetric Bricard linkages.…”

Section: Introductionmentioning

confidence: 99%

Novel method of constructing generalized Hoberman sphere mechanisms based on deployment axes

Sun

Yao

2019

Front. Mech. Eng.

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This study proposes a method of constructing type II generalized angulated elements (GAEs II) Hoberman sphere mechanisms on the basis of deployment axes that intersect at one point. First, the constraint conditions for inserting n GAEs II into n deployment axes to form a loop are given. The angle constraint conditions of the deployment axes are obtained through a series of linear equations. Second, the connection conditions of two GAEs II loops that share a common deployable center are discussed. Third, a flowchart of constructing the generalized Hoberman sphere mechanism on the basis of deployment axes is provided. Finally, four generalized Hoberman sphere mechanisms based on a fully enclosed regular hexahedron, arithmetic sequence axes, orthonormal arithmetic sequence axes, and spiral-like axes are constructed in accordance with the given arrangement of deployment axes that satisfy the constraint conditions to verify the feasibility of the proposed method.

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“…In the field of aerospace applications, deployable mechanisms are widely used to build large space mechanisms, such as deployable masts and antennas, etc., which play a significant role in space missions, such as earth observation, telecommunication, scientific research, and so on. Researchers have proposed two types of double-ring deployable truss concepts based on a parallelogram structure, and the structural stiffness is verified by prototype experiments [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Design and Experiment of Banana De-Handing Device Based on Symmetrical Shape Deployable Mechanism

et al. 2020

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Aiming at the problem that the banana de-handing device has poor radial deployment to the banana bunch stalk during the mechanized banana de-handing procedure, this paper presented a ring deployable mechanism based on a set of planar seven-bar linkages. It consists of multiple basic deployable units, which has great folding/deploying performance and is suitable for manufacturing a banana de-handing device, the diameter of which can be variably larger. The kinematics analysis of the mechanism was done, and the trajectory in space was obtained. When the mechanism is fully deployed, the diameter is 164 mm. The ratio of the folded height to the deployed diameter is 0.732, the ratio of the folded diameter to the deployed diameter is 0.262, and the ratio of the folded volume to the maximum of the deployed volume is 0.069. An experimental prototype of 500, 500, and 768 mm in length, width, and height was manufactured, and the deploying performance was analyzed to show the feasibility. Finally, experimental results show that 71.43% of the banana hands are de-handed successfully. The mechanism has a great deploying effect on banana bunch stalk, and the quality of the banana crown incision is good.

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Design of Large Single-Mobility Surface-Deployable Mechanism Using Irregularly Shaped Triangular Prismoid Modules

Cited by 28 publications

References 17 publications

Design and Experiment of Symmetrical Shape Deployable Arc Profiling Mechanism Based on Composite Multi-Cam Structure

Design and Experiment of Symmetrical Shape Deployable Arc Profiling Mechanism Based on Composite Multi-Cam Structure

Novel method of constructing generalized Hoberman sphere mechanisms based on deployment axes

Design and Experiment of Banana De-Handing Device Based on Symmetrical Shape Deployable Mechanism

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