Alleviation of Buffet-Induced Vibration Using Piezoelectric Actuators
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Buffet-induced vibrations have been problematic for aircraft for many years, and can have a disastrous impact when allowed to continue to the point of structural failure. Early attempts at combating harmful vibrations included relatively passive methods such as structural enhancements and leading edge fences used to minimize the strength of vortices. However, modern techniques have shown greater promise. Synthetic jet actuators have demonstrated the capability to significantly decrease vibrational strength by altering the airflow impinging upon a structure. Piezoelectric actuators have also sh...
Buffet-induced vibrations have been problematic for aircraft for many years, and can have a disastrous impact when allowed to continue to the point of structural failure. Early attempts at combating harmful vibrations included relatively passive methods such as structural enhancements and leading edge fences used to minimize the strength of vortices. However, modern techniques have shown greater promise. Synthetic jet actuators have demonstrated the capability to significantly decrease vibrational strength by altering the airflow impinging upon a structure. Piezoelectric actuators have also shown great potential. Strategically mounted to the surface of the affected structure, they impart directional strain to reduce the negative effects associated with the strain energy of specific mode shapes. The F-16 ventral fin is representative of an aircraft structure prone to failure when subjected to the buffet field from a Low Altitude Navigation and Targeting Infrared for Night (LANTIRN) pod. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
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