An investigation of the energy consumption and conversion of piezoelectric actuators integrated in active structures

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:395209

Liang, C; Sun, F; Rogers, C A ^[1]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Center for Intelligent Material Systems and Structures

This paper quantifies the energy consumption and conversion of an active structure driven by piezoelectric ceramic (PZT) actuators. The principle and methodology discussed in this paper may also be applied to other active structures with different types of actuators. The paper first discusses the energy conversion of PZT actuator materials, including the energy dissipation and electro-mechanical energy conversion. The energy conversion efficiency for the static and dynamic applications of PZT actuator is then defined and discussed. A numerical case study has also been conducted. One of the major conclusions from the investigation is that the physical process of energy conversion (electrical to mechanical and vice versa) within an induced strain actuator depends on the operating conditions of the actuator, namely, the type of structure it interacts, as well as the structural impedance.

• OSTI ID: 395209
• Report Number(s): CONF-940691--; ISBN 1-56676-171-9
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ACTUATORS
ELECTRIC POTENTIAL
ENERGY CONSUMPTION
ENERGY CONVERSION
ENERGY LOSSES
IMPEDANCE
MECHANICAL STRUCTURES
NUMERICAL ANALYSIS
OPERATION
THEORETICAL DATA