Study on the vertical stiffness of the spherical elastic layer bonded between rigid surfaces

Wang, Liquan; Li, Songyu; Yao, Shaoming; Lv, Dong; Jia, Peng

doi:10.1007/s00419-017-1246-9

Cited by 4 publications

(6 citation statements)

References 17 publications

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“…Figure 3 shows the cross section of a single spherical rubber layer. According to Wang et al (2017), the vertical stiffness can be expressed as …”

Section: Formulation Of the Linear Stiffnessmentioning

confidence: 99%

“…The vertical compression stiffness of the bonded rubber layer has been analyzed in Wang et al (2017), here the rotational stiffness will be analyzed. According to Eqs.…”

Section: Rotational Stiffness Analysesmentioning

confidence: 99%

“…Tsai and Pai proposed a new method for the full range of Poisson's ratio with two kinematic assumptions to calculate the effective compression moduli of the rubber layers with infinite-strip, circular and square shapes (Tsai and Lee, 1998). Wang et al (2017) used the same method to calculate the effective compression modulus of the spherical bonded rubber layer. The flexible joint undergoes pure shear deformation under the torsional moment.…”

Section: Introductionmentioning

confidence: 99%

“…The linear vertical stiffness of the spherical bonded rubber layer has been presented in the previous work (Wang et al, 2017). A closed-form expression of the linear rotational stiffness of the bonded rubber layer is proposed.…”

Section: Introductionmentioning

confidence: 99%

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Modelling, simulation and experiment of the spherical flexible joint stiffness

Wang

Yao

et al. 2018

Mech. Sci.

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Abstract. The spherical flexible joint is extensively used in engineering. It is designed to provide flexibility in rotation while bearing vertical compression load. The linear rotational stiffness of the flexible joint is formulated. The rotational stiffness of the bonded rubber layer is related to inner radius, thickness and two edge angles. FEM is used to verify the analytical solution and analyze the stiffness. The Mooney-Rivlin, Neo Hooke and Yeoh constitutive models are used in the simulation. The experiment is taken to obtain the material coefficient and validate the analytical and FEM results. The Yeoh model can reflect the deformation trend more accurately, but the error in the nearly linear district is bigger than the Mooney-Rivlin model. The Mooney-Rivlin model can fit the test result very well and the analytical solution can also be used when the rubber deformation in the flexible joint is small. The increase of Poisson's ratio of the rubber layers will enhance the vertical compression stiffness but barely have effect on the rotational stiffness.

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“…Figure 3 shows the cross section of a single spherical rubber layer. According to Wang et al (2017), the vertical stiffness can be expressed as …”

Section: Formulation Of the Linear Stiffnessmentioning

confidence: 99%

“…The vertical compression stiffness of the bonded rubber layer has been analyzed in Wang et al (2017), here the rotational stiffness will be analyzed. According to Eqs.…”

Section: Rotational Stiffness Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling, simulation and experiment of the spherical flexible joint stiffness

Wang

Yao

et al. 2018

Mech. Sci.

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“…However, the effect of slip is not that critical for unbonded rubber layers with typical bulk-modulus-to-shear-modulus ratio values and large values of a shape factor and friction coefficient [13]. Research on multilayer bearings continues, including theoretical and applied studies [14,15,16].…”

Section: Introductionmentioning

confidence: 99%

Determination of the elastic parameters of a material from a standardized dynamic stiffness testing

Eulogio

Torres

Carbajo

et al. 2019

Journal of Sound and Vibration

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Flexible Design of the Connecting Plate in Pneumatic Soft Manipulators

Dong

Yang²,

Li³

et al. 2022

Applied Sciences

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This paper presents a novel connecting plate for achieving a flexible connection in a soft manipulator. The main material used in the connecting plate is silicone, which functions similarly to the bionic oblique muscle (BOM) of an octopus arm and takes over the two actuator segments. Each segment of the actuator consists of three chambers, and the chambers are assembled with the connecting plate via bolts and loops to be a manipulator. By using a flexible plate instead of a rigid one, the manipulator achieves more dexterous movements. This paper establishes a nonlinear model for analyzing the shear and compression deformation of a silicone connecting plate. Additionally, finite element method was used to analyze the mechanical performance of the connecting plate. The deformation of a soft material can reduce the stress concentration during movement of the manipulator. Therefore, in the experiment, the BOM exhibited better motion performance compared with the rigid connection plate.

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Study on the vertical stiffness of the spherical elastic layer bonded between rigid surfaces

Cited by 4 publications

References 17 publications

Modelling, simulation and experiment of the spherical flexible joint stiffness

Modelling, simulation and experiment of the spherical flexible joint stiffness

Determination of the elastic parameters of a material from a standardized dynamic stiffness testing

Flexible Design of the Connecting Plate in Pneumatic Soft Manipulators

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