Modeling of geometric, material and damping nonlinearities in piezoelectric energy harvesters

Yang, Yue

doi:10.1007/s11071-016-2660-1

Cited by 37 publications

(30 citation statements)

References 31 publications

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“…It is often expensive and limited to reduce vibration by changing the structural parameters of the engine system. The easy way to apply the vibration system is to increase the damping of the vibration system (Yang and Upadrashta, 2016). In general, the engine of crawler-type combine harvester is placed horizontally on the whole machine frame by four pivot points.…”

Section: Vibration Control Methods For the Engine Of Crawlertype Combimentioning

confidence: 99%

Vibration control method for a crawler-type combine harvester

Zhang

2018

Emir J Food Agric

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The traditional vibration control method for the crawler-type combine harvester based on experience is only a small piece of weight iron added to the main drive shaft of the cutter,and the mass of the weight iron is determined by the technician with experience, so the vibration control effect is not obvious. Therefore, a vibration control method for the new crawler-type combined harvester is put forward in this paper. The engine and cutting structure are the main sources of the crawler-type combine. According to the force analysis results of the cutting structure and the results of structural dynamics analysis, each acting force and moment of force are obtained, and the optimal combination scheme for calculating the position and mass of weight distribution is calculated to solve the cutting structure’s vibration of the crawler-type combine harvester. According to the vibration theory and modern design method, the vibration control of the crawler-type combine harvester engine is realized through the model analysis and the finite element calculation to establish the vibration damping model and design the parameters of the damping cushion. The experimental results show that the proposed method can effectively improve the vibration status of crawler-type combine harvesters, and the vibration level of harvesters is reduced by 50% to 80% in field operation.

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Section: Vibration Control Methods For the Engine Of Crawlertype Combimentioning

confidence: 99%

Vibration control method for a crawler-type combine harvester

Zhang

2018

Emir J Food Agric

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“…Thus, MFCs are suitable for large deformation and curved surface applications. In recent years, MFCs have been wildly used in morphing wings (Bilgen et al, 2010a; Gamble and Inman 2018; Kochersberger et al, 2017; Pankonien et al, 2015), energy harvesting (Shahab et al, 2016; Upadrashta et al, 2015; Yang et al, 2016), and active vibration control for the plates and shells (Li et al, 2016; Sohn et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Large deformation mechanical modeling with bilinear stiffness for Macro-Fiber Composite bimorph based on extending mixing rules

2020

Journal of Intelligent Material Systems and Structures

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Macro-Fiber Composite bimorph is a kind of piezoelectric actuator that allow large bending deformation. However, macro-fiber composites exhibit strong stiffness nonlinearity in their operation range, so it is difficult to accurately estimate their large deformation behavior based on a linear constitutive model. In addition, the macro-fiber composites have active and inactive parts, that significantly differ in their material sizes and properties, so it is not reasonable to consider them as uniform material. Thus, it is necessary develop an accurate modeling and analysis method for the large deformation macro-fiber composite structures. First, the mixing rules are extended to derive the three-dimensional homogenized mechanical and electrical parameters of the macro-fiber composite active part; based on these parameters, the actuation results of linear finite element model is in good agreement with the official data. Then a finite element model of the axially compressed macro-fiber composite bimorph is established, the bilinear tensile stiffness of macro-fiber composite is realized by secondary development in ANSYS. Comparison with the experimental results reveals high accuracy of the established finite element model. Thus, the developed method can be effectively used for the performance evaluation and design of the macro-fiber composite devices with large deformation.

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“…Most of the efforts in this field are based on the hypothesis of linear behavior [10][11][12][13][14], but nonlinear phenomena can greatly impact the final performances [15][16][17][18]. The causes of the nonlinear response can be traced back to several mechanisms, such as instability phenomena [19][20][21][22], nonlinear material constitutive law [23][24][25][26][27], geometric effects [28][29][30], impacts [31][32][33][34], and damping [35]. Additionally, nonlinearities can arise from the electrical circuit (diodes, among others) [36].…”

Section: Introductionmentioning

confidence: 99%

“…While FE simulations can be a viable computational strategy for nonlinear static analyses, reduced-order models 2 Shock and Vibration (ROMs) are more attractive for nonlinear dynamic analyses because they allow saving elaboration time. Moreover, ROMs are useful in order to separate and identify the effects due to material and geometric nonlinearities [35]. With some exceptions [5], however, most reduced-order models assume a linear electromechanical response and the modal superposition principle is extensively adopted to derive the statespace representation of the system.…”

Section: Introductionmentioning

confidence: 99%

A Two‐Step Hybrid Approach for Modeling the Nonlinear Dynamic Response of Piezoelectric Energy Harvesters

Maruccio

Quaranta

Montegiglio

et al. 2018

Shock and Vibration

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An effective hybrid computational framework is described here in order to assess the nonlinear dynamic response of piezoelectric energy harvesting devices. The proposed strategy basically consists of two steps. First, fully coupled multiphysics finite element (FE) analyses are performed to evaluate the nonlinear static response of the device. An enhanced reduced-order model is then derived, where the global dynamic response is formulated in the state-space using lumped coefficients enriched with the information derived from the FE simulations. The electromechanical response of piezoelectric beams under forced vibrations is studied by means of the proposed approach, which is also validated by comparing numerical predictions with some experimental results. Such numerical and experimental investigations have been carried out with the main aim of studying the influence of material and geometrical parameters on the global nonlinear response. The advantage of the presented approach is that the overall computational and experimental efforts are significantly reduced while preserving a satisfactory accuracy in the assessment of the global behavior.

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Modeling of geometric, material and damping nonlinearities in piezoelectric energy harvesters

Cited by 37 publications

References 31 publications

Vibration control method for a crawler-type combine harvester

Vibration control method for a crawler-type combine harvester

Large deformation mechanical modeling with bilinear stiffness for Macro-Fiber Composite bimorph based on extending mixing rules

A Two‐Step Hybrid Approach for Modeling the Nonlinear Dynamic Response of Piezoelectric Energy Harvesters

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