Dynamic modeling and analysis for inflatable mechanisms considering adhesion and rolling frictional contact

Yuan, Tingting; Tang, Lingling; Liu, Jinyang

doi:10.1016/j.mechmachtheory.2023.105295

Cited by 7 publications

(2 citation statements)

References 41 publications

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“…Another issue of non-retracting inflatable booms is the potential that they can uncoil in an unpredictable manner. The dynamics and geometry of inflatable booms during deployment have been studied and simulated by [24][25][26][27][28]. Results have found that the deploying motion can be unstable, unpredictable, chaotic, and even catastrophic [15,20,27], particularly in an orbital environment.…”

Section: Party Horns and Coiled Inflatable Boomsmentioning

confidence: 99%

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Soft Coiled Pneumatic Actuator with Integrated Length-Sensing Function for Feedback Control

Greenwood,

Felt

2023

Actuators

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SPIRA Coil actuators are formed from thin sheets of PET plastic laminated into a coil shape that unfurls like a “party horn” when inflated, while many soft actuators require large pressures to create only modest strains, SPIRA Coils can easily be designed and fabricated to extend over dramatic distances with relatively low working pressures. Internal metalized PET strips separate in the extended portion of the actuator, creating an electrical circuit with a resistance that corresponds to the actuator length. This paper presents and experimentally validates easy-to-use design models for the actuators’ self-retracting spring stiffness, its pneumatic extension force, and its internal length-sensing electrical resistance. Testing of the self-sensing capabilities demonstrates that the embedded sensor can be used to determine the actuator length with virtually no hysteresis. Feedback control with the resistance-based sensing resulted in length-control errors within 5% of the extended actuator length (i.e., 3 cm of 60 cm).

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Section: Party Horns and Coiled Inflatable Boomsmentioning

confidence: 99%

“…Results have found that the deploying motion can be unstable, unpredictable, chaotic, and even catastrophic [15,20,27], particularly in an orbital environment. Researchers have tried to address this by using hook-and-loop strips [29], adhesive [26], and flexible plates [30] as methods to slow down deployment.…”

Section: Party Horns and Coiled Inflatable Boomsmentioning

confidence: 99%

Soft Coiled Pneumatic Actuator with Integrated Length-Sensing Function for Feedback Control

Greenwood,

Felt

2023

Actuators

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Rigid–flexible–thermal coupling dynamics of a hub and multiplate system considering frictional contact

et al. 2023

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A geometric nonlinear modeling approach for strong rigid-flexible-thermal coupling dynamics of the hub and multi-plate system considering frictional contact is proposed. Based on the absolute nodal coordinate formulation (ANCF), a thermal integrated ANCF thin plate element is developed, where the temperature field is expressed with Taylor polynomials to yield two-dimensional heat conduction equations. Different from the traditional coupling formulations, the influences of the attitude motion and structural deformation on the intensity of the solar radiation, the geometric nonlinearity of the plate as well as the frictional contact are taken into account. The normal contact is formulated by the penalty method, and the tangential friction considers the stick-slip transition. To solve the strong rigid-flexible-thermal coupling equations, a novel numerical method combining the modified central difference approach and the generalized- method is proposed. Two validations are performed to verify the proposed thermal-structural coupling model, which proves the importance of the geometric nonlinearity and can capture the thermally induced vibration. Then the thermal-dynamic coupling analysis for the satellite and solar array multibody system in thermal environment is carried out. The dynamic characteristics of the thermally induced vibration can be successfully revealed by the rigid-flexible-thermal coupling model. Furthermore, it is indicated that the influence of contact and thermal load on the nonlinear behavior of the solar array deployment is essential, which demonstrates the feasibility of the proposed approach.

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Numerical investigation of the wheel-rail interaction in a stacked multibody system with multipoint frictional contact dynamics under strong earthquakes

Zhang,

Wu,

Zhang

et al. 2024

Mechanism and Machine Theory

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Dynamic modeling and analysis for inflatable mechanisms considering adhesion and rolling frictional contact

Cited by 7 publications

References 41 publications

Soft Coiled Pneumatic Actuator with Integrated Length-Sensing Function for Feedback Control

Soft Coiled Pneumatic Actuator with Integrated Length-Sensing Function for Feedback Control

Rigid–flexible–thermal coupling dynamics of a hub and multiplate system considering frictional contact

Numerical investigation of the wheel-rail interaction in a stacked multibody system with multipoint frictional contact dynamics under strong earthquakes

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