Topology optimization of bending actuators with multilayer piezoelectric material

Kang, Zhan; Wang, Xiaoming

doi:10.1088/0964-1726/19/7/075018

Cited by 34 publications

(12 citation statements)

References 29 publications

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“…piezoelectric composite systems [18,19,20]. Based on the MFC material, Kang and Wang [21] considered the distribution of actuation voltages and structural layouts of the actuator in solving the optimization problem. The piezoelectric effect on the piezocomposites was investigated and optimized for layered piezoelectric transducers using analytical mixture rules and a numerical homogenization method by Biscani et al [22].…”

Section: Several Analytical Models Have Been Formulated To Predict Thmentioning

confidence: 99%

Nonlinear dynamic analysis of composite piezoelectric plates with graphene skin

Guo

Jiang

Zhang

et al. 2018

Composite Structures

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This paper studies the nonlinear dynamical characteristic of a composite plate made of new three-phase materials which include the graphene (GP) combined with macro fiber composite (MFC) in the polymer. The GP is supposed to be uniformly dispersed in the upper and lower surfaces of the composite laminated plate with 1-3 mode of macro fiber. The cross-ply MFC composite laminated plate is subjected to transversal excitations. The constitutive laws for the MFC-GP composite material are obtained based on the rule of mixture for multi-components of composite material. The nonlinear governing equations of motion of the MFC-GP plate are derived by Hamilton's principle and the von Kármán geometrical kinematics. Galerkin's approach is employed to discretize the partial differential governing equations into a two-degree-of-freedom nonlinear system. Then, stability analysis is conducted to investigate the influences of various parameters on natural frequencies of the MFC-GP plate, with a particular focus on the effects of GP volume fraction, initial conditions and damping coefficients on nonlinear vibration behaviours of the composite plate.

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Section: Several Analytical Models Have Been Formulated To Predict Thmentioning

confidence: 99%

Nonlinear dynamic analysis of composite piezoelectric plates with graphene skin

Guo

Jiang

Zhang

et al. 2018

Composite Structures

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“…It is straightforward to develop a variety of meshless level set methods by incorporating different meshless methods [21][22][23] into the level set method. This study provides an extended level set method which can be applied to more advanced shape and topology optimization problems, for example the geometrically nonlinear structures [45,47] and smart composite structures [48,49].…”

Section: Mbb Beammentioning

confidence: 99%

Structural shape and topology optimization using a meshless Galerkin level set method

Luo

Zhang

Gao

et al. 2011

Numerical Meth Engineering

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This paper aims to propose a meshless Galerkin level set method for shape and topology optimization of continuum structures. To take advantage of the implicit free boundary representation scheme, the design boundary is represented as the zero level set of a scalar level set function, to flexibly handle complex shape fidelity and topology changes by maintaining concise and smooth interface. Compactly supported radial basis functions (CSRBFs) are used to parameterize the level set function and construct the shape functions for meshfree approximations based on a set of unstructured field nodes. The meshless Galerkin method with global weak form is used to implement the discretization of the state equations. This provides a pathway to unify the two different numerical stages in most conventional level set methods: (1) the propagation of discrete level set function on a set of Eulerian grid and (2) the approximation of discrete equations on a set of Lagrangian mesh. The original more difficult shape and topology optimization based on the level set equation is transformed into a relatively easier size optimization, to which many efficient optimization algorithms can be applied. The proposed level set method can describe the moving boundaries without remeshing for discontinuities. The motion of the free boundary is just a question of advancing the discrete level set function in time by solving the size optimization. Several benchmark examples are used to demonstrate the effectiveness of the proposed method. The numerical results show that the proposed method can simplify numerical process and avoid numerical difficulties involved in most conventional level set methods. It is straightforward to apply the proposed method to more advanced shape and topology optimization problems.

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“…Rakotondrabe et al (2007) have studied the effect of the temperature variation on a unimorph piezoelectric cantilever where its influences on the thermal expansion, the piezoelectric constant, the transient part, and the creep effect. Kang and Wang (2010) have attempted on topology optimization of bending actuators with multilayer piezoelectric material where the distribution of the control voltage and the structural layout of the actuator are optimized. Jayaram and Joshi (2010) have focused on design and development of a flexure-based micro gripper using piezoelectric actuator where visionbased force sensing system is used to handle objects of various sizes ranging from 100 mm to 1 mm.…”

Section: Introductionmentioning

confidence: 99%

Experimental characterizations of bimorph piezoelectric actuator for robotic assembly

Ghosh

Jain

Majumder

et al. 2017

Journal of Intelligent Material Systems and Structures

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Piezoelectric actuator is one of the most versatile types of smart actuators, extensively used in different industrial applications like robotics, microelectromechanical systems, micro-assembly, biological cell handling, self-assembly, and optical component handling in photonics. By applying potential to a piezoelectric actuator, it can produce micro level deflection with large force generation, very fast response, and long-term actuation as compared to other actuators. The design and analysis of the bimorph piezoelectric cantilever using proportional–integral controller are carried out where the bimorph piezoelectric actuator is used as an active actuator for providing the dexterous behavior during robotic assembly. Characterization of bimorph piezoelectric actuator carried out by controlling voltage signal provides steady-state behavior which is verified by conducting experiments. A prototype of micro gripper is also developed which shows the potential of handling small lightweight objects for robotic assembly.

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Topology optimization of bending actuators with multilayer piezoelectric material

Cited by 34 publications

References 29 publications

Nonlinear dynamic analysis of composite piezoelectric plates with graphene skin

Nonlinear dynamic analysis of composite piezoelectric plates with graphene skin

Structural shape and topology optimization using a meshless Galerkin level set method

Experimental characterizations of bimorph piezoelectric actuator for robotic assembly

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