Selection and validation of hyperelastic finite element model for analysis of silicone rubber

Kindo, Sanjay; Vashistha, Rohit; Raj, Sumit; Ravishankar, G. P.; Padwale, Mahesh P.

doi:10.1063/1.5044076

Cited by 3 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on Yeoh's second-order constitutive model of silica gel material for the pneumatic soft-bodied bionic actuator, the rationality of structural design and motion forms and the accuracy of the theoretical model of deformation analysis are verified by the numerical simulation algorithm [ 39 – 41 ]. The calculation results obtained from the numerical simulation algorithm are shown in Figure 6 .…”

Section: Numerical Simulation Algorithm Verification and Physical mentioning

confidence: 99%

Development and Performance Analysis of Pneumatic Soft-Bodied Bionic Actuator

Zhao

Wang

2021

Applied Bionics and Biomechanics

View full text Add to dashboard Cite

The design of a pneumatic soft-bodied bionic actuator derives from the structural characteristics and motion mechanism of biological muscles, combined with the nonlinear hyperelasticity of silica gel, which can improve the mobility and environmental adaptability of soft-bodied bionic robots. Based on Yeoh’s second-order constitutive model of silica gel, the deformation analysis model of the actuator is established, and the rationality of the structure design and motion forms of the actuator and the accuracy of the deformation analysis model are verified by using the numerical simulation algorithm. According to the physical model of the pneumatic soft-bodied bionic actuator, the motion and dynamic characteristics of the actuator are tested and analyzed, the curves of motion and dynamic characteristics of the actuator are obtained, and the empirical formula of the bending angle and driving torque of the actuator is fitted out. The results show that the deformation analysis model and numerical simulation method are accurate, and the pneumatic soft-bodied bionic actuator is feasible and effective, which can provide a design method and reference basis for the research and implementation of soft-bodied bionic robot actuator.

show abstract

Section: Numerical Simulation Algorithm Verification and Physical mentioning

confidence: 99%

Development and Performance Analysis of Pneumatic Soft-Bodied Bionic Actuator

Zhao

Wang

2021

Applied Bionics and Biomechanics

View full text Add to dashboard Cite

show abstract

“…Structural Parameters e combination of structural dimension parameters plays a key role in the motion and dynamic characteristics of the pneumatic soft-bodied bionic basic execution unit. To shorten the experimental research period and reduce experimental cost, the optimal combination of structural parameters is studied based on the response surface analysis method [30][31][32][33][34] and numerical simulation algorithm [35][36][37][38]. According to the design principle of the Box-Behnken central composite experiment, the maximum bending angle Φ is used for determining the optimum extraction process.…”

Section: Optimal Combination Ofmentioning

confidence: 99%

Development and Performance Analysis of Pneumatic Soft-Bodied Bionic Basic Execution Unit

Zeng

Zhao

Wang

et al. 2020

Journal of Robotics

View full text Add to dashboard Cite

This paper studies the design of pneumatic soft-bodied bionic basic execution unit with soft-rigid combination, which can be used as an actuator for pneumatic soft-bodied robots and soft-bodied manipulators. This study is inspired by structural characteristics and motion mechanism of biological muscles, combined with the nonlinear hyperelasticity of silica gel and the insertion of thin leaf spring structure in the nonretractable layer. Response surface analysis and numerical simulation algorithm are used to determine the optimal combination of structural dimension parameters by taking the maximum output bending angle of the basic executing unit as the optimization objective. Based on Odgen’s third-order constitutive model, the deformation analysis model of the basic execution unit is established. The physical model of pneumatic soft-bodied bionic basic execution unit is prepared through 3D printing, shape deposition, soft lithography, and other processing methods. Finally, the motion and dynamic characteristics of the physical model are tested through experiments and result analysis, thus obtaining curves and empirical formulas describing the motion and dynamic characteristics of the basic execution unit. The relevant errors are compared with the deformation analysis model of the execution unit to verify the feasibility and effectiveness of the design of the pneumatic soft-bodied bionic basic execution unit. The above research methods, research process, and results can provide a reference for the research and implementation of pneumatic and hydraulic driven soft-bodied robots and grasping actuators of soft-bodied manipulators.

show abstract

Development and Analysis of Key Components of a Multi Motion Mode Soft-Bodied Pipe Robot

et al. 2022

View full text Add to dashboard Cite

In order to enhance the environmental adaptability of peristaltic soft-bodied pipe robots, based on the nonlinear and hyperelastic characteristics of silicone rubber combined with the biological structure and motion characteristics of worms, a hexagonal prism soft-bodied bionic actuator is proposed. The actuator adopts different inflation patterns to produce different deformations, so that the soft-bodied robot can realize different motion modes in the pipeline. Based on the Yeoh binomial parameter silicone rubber constitutive model, the deformation analysis model of the hexagonal prism soft-bodied bionic actuator is established, and the numerical simulation algorithm is used to ensure both that the drive structure and deformation mode are reasonable, and that the deformation analysis theoretical model is accurate. The motion and dynamic characteristics of the prepared hexagonal prism soft-bodied bionic actuator are tested and analyzed, the motion and dynamic characteristic curves of the actuator are obtained, and the empirical deformation formula of the actuator is fitted. The experimental results are consistent with the deformation analysis model and numerical simulation result, which shows that the deformation analysis model and numerical simulation method are accurate and can provide design methods and reference basis for the development of a pneumatic soft-bodied body bionic actuator. The above research results can also prove that the hexagonal prism soft-bodied bionic actuator is reasonable and feasible.

show abstract

Selection and validation of hyperelastic finite element model for analysis of silicone rubber

Cited by 3 publications

References 5 publications

Development and Performance Analysis of Pneumatic Soft-Bodied Bionic Actuator

Development and Performance Analysis of Pneumatic Soft-Bodied Bionic Actuator

Development and Performance Analysis of Pneumatic Soft-Bodied Bionic Basic Execution Unit

Development and Analysis of Key Components of a Multi Motion Mode Soft-Bodied Pipe Robot

Contact Info

Product

Resources

About