rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Active vibration control of non-determinic subsystem using piezoelectric patch actuator
  name:
    name part: Azni Nabela Wahid
    role:
      role term: creator
  name:
    name part: International Islamic University Malaysia
    name part: Department of Mechatronics Engineering
  genre: Theses, IIUM local
  origin info:
    place:
      place term: my
    place:
      place term: Kuala Lumpur
    publisher: Kulliyyah of Engineering, International Islamic University Malaysia
    date issued: 2014
  language:
    language term: eng
  physical description:
    extent: xvi, 86 leaves : ill. ; 30cm.
  abstract: Vibration control using piezoelectric (PZT) material has gained significant attention for its ability to behave as a sensor or actuator due to PZT direct and inverse effect. For control or excitation purposes, PZT patch actuator is embedded or attached on engineering built-up structures. Engineering systems such as aircraft, ships and automotive are considered built-up structures and dynamically they are thought of as being fabricated from many components that are classified as deterministic structure (DS) and non-deterministic structure (Non-DS). Adding a PZT actuator on a structure is equivalent to adding an external moment to the dynamics of the structure. However, the influence of adding input moment to a Non-DS is not fully understood due the complexity of the resulting wave; no mathematical representation has been established. In order to apply SEA method for input moments, a mathematical representation for moment generated by PZT patch in the form of average power is needed; so that a control system can be implemented. In this research, a simply-supported plate attached with a PZT patch is taken as a benchmark model. Ensemble average of power given by the PZT patch actuator to the plate when subjected to structural uncertainties is simulated using Lagrangian method and Monte-Carlo simulation. In addition, it is found out that the mathematical solution to estimate average power delivered to a structure can also be represented by mobility function. The findings of the research discovered that using moment mobility equation for a thin plate excited by a force couple, the power delivered by PZT actuator to a non-deterministic plate can be well-represented, particularly at high frequency range, therefore drastically cut computation time and cost. Parametric studies show that changing the patch location on the structure will not affect the ensemble average power supplied at high frequency. On the contrary, changing the patch size will change the power magnitude pro…
  note: by Azni Nabela Wahid
  note: Thesis (MSMCT)--International Islamic University Malaysia, 2014.
  note: Includes bibliographical references (leaves 72-75).
  subject:
    geographic code: a-my---
  classification: TK7872.P54
  identifier: http://studentrepo.iium.edu.my/handle/123456789/4959
  record info:
    record content source: UIAM
    record creation date: 140217
    language of cataloging:
      language term: eng