Virginia Tech
    • Log in
    View Item 
    •   VTechWorks Home
    • College of Engineering (COE)
    • Department of Mechanical Engineering
    • Scholarly Works, Department of Mechanical Engineering
    • View Item
    •   VTechWorks Home
    • College of Engineering (COE)
    • Department of Mechanical Engineering
    • Scholarly Works, Department of Mechanical Engineering
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Optimal placement of piezoelectric actuators and polyvinylidene fluoride error sensors in active structural acoustic control approaches

    Thumbnail
    View/Open
    1992_Optimal_placement_piezoelectric.pdf (1.803Mb)
    Downloads: 840
    Date
    1992-09-01
    Author
    Clark, Robert L.
    Fuller, Chris R.
    Metadata
    Show full item record
    Abstract
    Optimization of the location of a rectangular piezoelectric actuator and both the size and location of a rectangular surface strain error sensor constructed from polyvinylidene fluoride (PVDF) for active structural acoustic control (ASAC) is studied in this work. An algorithm is proposed for choosing the optimal actuator/sensor configuration for controlling sound from a baffled simply supported plate excited harmonically, and the resulting acoustic response is predicted from analytical models. These results are compared to those measured in the lab on a test rig duplicating the appropriate boundary conditions and situated in an anechoic chamber. Results from a single optimally located control actuator are compared to those from control with a nonoptimally positioned actuator as well as multiple control actuators. In addition, either microphones are used to provide error information in the test cases or a single optimally located and dimensioned PVDF error sensor is implemented as the cost function. Results from this study indicate that optimization of control actuators and error sensors provides a method for realizing adaptive structures for active structural acoustic control (ASAC), rivaling in importance the performance increases gained when acoustic control is achieved with microphone error sensors and multiple control actuators.
    URI
    http://hdl.handle.net/10919/52646
    Collections
    • Scholarly Works, Department of Mechanical Engineering [397]

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us
     

     

    VTechWorks

    AboutPoliciesHelp

    Browse

    All of VTechWorksCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Log inRegister

    Statistics

    View Usage Statistics

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us