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:
    non sort: A
    title: mathematical model for air brake systems in the presence of leaks
  name:
    name part: Ramaratham, Srivatsan
    name part: 1982-
    role:
      role term: creator
  name:
    name part: Swaroop, Darbha
    role:
      role term: thesis advisor.
  name:
    name part: Rajagopal, Kumbakonam R.
    role:
      role term: thesis advisor.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2008
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: remote
  abstract: This thesis deals with the development of a mathematical model for an air brake system in the presence of leaks. Brake systems in trucks are crucial for ensuring the safety of vehicles and passengers on the roadways. Most trucks in the US are equipped with S-cam drum brake systems and they are sensitive to maintenance. Brake defects such as leaks are a major cause of accidents involving trucks. Leaks in the air brake systems affect braking performance drastically by decreasing the peak braking pressures attained and also increasing the time required to attain the same, thereby resulting in longer stopping distances. Hence there is a need for detecting leaks in an air brake system. In this thesis, a mathematical model for an air brake system in the presence of leaks is developed with a view towards developing an automatic leak detection system in the near future. The model developed here builds on an earlier research at Texas A&M University in which a "fault free" model of an air brake system is developed, i.e., a mathematical model of an air brake system that predicts how the pressure in the brake chamber evolves as a function of the brake pedal input when there are no leaks in the air brake system.In order to develop a model for an air brake system in the presence of leaks, one must characterize a "leak". A leak may be characterized by the location and its size. Since the pipes are short, the location of the leak does not significantly affect the evolution in the brake pressure as much as its size. For this reason, "effective area" of the leak was chosen as a characteristic of the leak. It was estimated by fitting an empirical relation for leak with leak flow measurement data. The supply pressure and effective area of leak comprised the inputs to the model along with the displacement of the foot pedal (treadle valve plunger). The model was corroborated with the experimental data collected using the setup at Texas A&M University.
  note: by Srivatsan Ramaratham.
  note: "Major Subject: Mechanical Engineering"
  note: Title from author supplied metadata (automated record created on Oct. 13, 2008.)
  note: Vita.
  note: Abstract.
  note: Electronic resource.
  note: Mode of access: World Wide Web.
  note: System requirements: World Wide Web access and Adobe Acrobat Reader.
  note: M. S. Texas A&M University 2008.
  note: Includes bibliographical references.
  note: Text (M. S.).
  subject:
    topic: Major mechanical engineering
  subject:
    topic: BRAKES
  subject:
    topic: AIR BRAKE SYSTEM
  subject:
    topic: MATHEMATICAL MODEL
  subject:
    topic: TRUCKS
  subject:
    topic: LEAKS
  identifier: http://hdl.handle.net/1969.1/86043
  record info:
    record content source: TXA
    record creation date: 090406
    record change date: 20151110091540.0
    record identifier: in00002417559