Dynamic superelement modeling method for compound dynamic systems

Qu, Zu-Qing; Selvam, R. P.

doi:10.2514/3.14518

Cited by 1 publication

(3 citation statements)

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“…The mechanical dynamics of each substructure in free vibration can be described as follows: (21) where and are the mass and stiffness matrix of a substructure generated by FEM methods, respectively. (21) can be partitioned according to the retained degrees of freedoms on master nodes subscripted by r and deleted degrees of freedom on servant nodes subscripted by d: (22) The second row in (22) leads to the following relation according to the static condensation: (23) where…”

Section: Equivalent Substructure Modeling Of Composite Plate Integrated With Mfc Transducersmentioning

confidence: 99%

“…. The reduced-order model of each substructure is obtained by introducing (23) into the first row in (22). The dynamic condensation is an iterative approach that allows the mass contribution can be approximately included in the order reduction transformation matrix.…”

Section: Equivalent Substructure Modeling Of Composite Plate Integrated With Mfc Transducersmentioning

confidence: 99%

“…The dynamic condensation is an iterative approach that allows the mass contribution can be approximately included in the order reduction transformation matrix. The new R (i) to replace R (0) in ( 23) is given as follows [22]:…”

Section: Equivalent Substructure Modeling Of Composite Plate Integrated With Mfc Transducersmentioning

confidence: 99%

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Structure-preserving low-order modeling approach of laminated composite plates integrated with macro-fiber composite transducers for dynamic applications

Dong

Faria

Pluymers

et al. 2019

Composite Structures

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An Equivalent Substructure Modeling (ESM) approach of laminated composite plates with integrated macro-fiber composite (MFC) transducers is described. The proposed approach generates structure-preserving low-order system models for dynamic applications such as vibration suppression and energy harvesting. The direct piezoelectric effect of MFC transducers is derived from the electrical boundary conditions and it has the same coupling patterns as equivalent forces which describe the inverse piezoelectric effect. Hence, the reversibility of the piezoelectric effect is ensured and the electrical dynamics of the system can be simulated. The dual electromechanical couplings are assigned to a low-order structural model generated by an equivalent substructure concept. A laminated composite plate with integrated MFC transducers is used for validations and the simulated results agree well with experimental data. Two given study cases demonstrated that the ESM approach not only can generate accurate low-order system models but also provides a flexible fashion to design piezoelectric composite systems.

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Section: Equivalent Substructure Modeling Of Composite Plate Integrated With Mfc Transducersmentioning

confidence: 99%

Section: Equivalent Substructure Modeling Of Composite Plate Integrated With Mfc Transducersmentioning

confidence: 99%

See 1 more Smart Citation

Structure-preserving low-order modeling approach of laminated composite plates integrated with macro-fiber composite transducers for dynamic applications

Dong

Faria

Pluymers

et al. 2019

Composite Structures

View full text Add to dashboard Cite

show abstract

Dynamic superelement modeling method for compound dynamic systems

Cited by 1 publication

References 0 publications

Structure-preserving low-order modeling approach of laminated composite plates integrated with macro-fiber composite transducers for dynamic applications

Structure-preserving low-order modeling approach of laminated composite plates integrated with macro-fiber composite transducers for dynamic applications

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