Analytical and numerical investigations into active control of longitudinal and flexural waves transmitted through a cylindrical strut are presented in this article. Following along the lines of our previous work, a mechanics based model for a cylindrical strut fitted with magnetostrictive actuators is developed. For harmonic disturbances, a linear dynamic formulation, which describes the motion of the actuator, is integrated with the formulation describing wave transmission through the strut. The resulting system is studied in the frequency domain, and numerical simulations are used to examine the open-loop system. For disturbances transmitted over the frequency range of 10 Hz to 6 kHz, comparisons are made between the system based on piezoelectric actuators and the system based on magnetostrictive actuators. A closed-loop control scheme based on the developed model is proposed for controlling longitudinal vibrations.


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    Title :

    Control of wave transmission through struts


    Contributors:


    Publication date :

    1999


    Size :

    12 Seiten, 15 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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