Development of an actuator power factor meter for experimental determination of the optimal actuator location on complex structures

Chen Liang; Fanping P. Sun; Craig A. Rogers

doi:10.1117/12.175188

6 May 1994 Development of an actuator power factor meter for experimental determination of the optimal actuator location on complex structures

Chen Liang, Fanping P. Sun, Craig A. Rogers

Author Affiliations +

Proceedings Volume 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems; (1994) https://doi.org/10.1117/12.175188
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

Actuator power factor, defined as the ratio of structural dissipative mechanical power to apparent supplied electrical power, describes the effectiveness of the integrated actuators to convert supplied electrical power to mechanical power which creates the intended structural response. A large actuator power factor in the frequency range of application indicates that the corresponding actuator (position) has a higher authority to excite its host structure in that frequency range than positions with a lower power factor. The use of acutator power factor provides an alternate tool in the determination of the optimal actuator locations and dimensions to theoretical calculations. More importantly, the power factor can be experimentally measured on large-scale complex structures, thereby eliminating the need for sophisticated theoretical modeling. The concept of an actuator power factor was first introduced by the authors (Liang et al., 1993a) and will be briefly described herein. The utility of using the actuator power factor in optimizing an actuator system will then be illustrated using a numerical case study. The hardware development of the actuator power factor meter will be presented. The application of actuator power factor meter for optimal experimental actuator placement will be discussed.

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Chen Liang, Fanping P. Sun, and Craig A. Rogers "Development of an actuator power factor meter for experimental determination of the optimal actuator location on complex structures", Proc. SPIE 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems, (6 May 1994); https://doi.org/10.1117/12.175188

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KEYWORDS

Actuators

Ferroelectric materials

Dielectrics

Acoustics

Active vibration control

Signal attenuation

Algorithm development

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