Abstract
Finite element equations of electric-mechanical coupled piezoelectric truss structures are deduced using linear piezoelectricity and Hamilton’s principle. An optimal control model of piezoelectric smart trusses is established. It makes the maximum value of the controlled nodal displacements to be minimized and subjected to the strength requirements of the structure and the characteristic of the actuators. Control variables of the model are the voltages of actuators. The model is transformed to a sequential linear programming ultimately. For static indeterminate trusses in some case, the maximum stress in the structure can be decreased to allowable limit by adjusting the length of the member if it exceeds the allowable limit. When the number of actuators is limited, if they are distributed reasonable and have sufficient active elongation, effective control can be realized also. The efficiency of the control model is simulated by numerical method.
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© 2006 Springer
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Long, L., Sui, Y. (2006). OPTIMAL DISPLACEMENT CONTROL SIMULATION OF ELECTRIC-MECHANICAL COUPLED TRUSSES. In: LIU, G., TAN, V., HAN, X. (eds) Computational Methods. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-3953-9_3
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DOI: https://doi.org/10.1007/978-1-4020-3953-9_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-3952-2
Online ISBN: 978-1-4020-3953-9
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