Fault assessment of a diesel engine using vibration measurements and advanced signal processing
By:  Robert A. Armstrong
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1996
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 62
Description: A Diesel Engine test cell was developed, which consisted of a Detroit Diesel 3-53 engine, a      water brake dynamometer and an engine cycle analyzer. Extensive steady state and time      resolved instrumentation were installed along with a highspeed data acquisition system to      obtain cylinder pressure and engine vibration data. High frequency response accelerometers      were mounted on the cylinder head assembly to measure phase resolved response relative to      top dead center (TDC) on the first cylinder. Baseline vibration data were taken over a range      of engine load and speed combinations. An engine fault was introduced by adjusting the timing      on the first cylinder injector. The vibration signatures of the baseline engine and the induced      fault engine were characterized using Joint Time Frequency Analysis. The fault condition was      detected and localized.
Notes: Thesis advisor(s): Knox T. Millsaps, Jr.

"December 1996."

Thesis (M.S. in Mechanical Engineering and Mechanical Engineer) Naval Postgraduate School, December 1996.

Includes bibliographical references (p. 45).

Approved for public release; distribution unlimited.

Also available online.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat Reader.

US Navy (USN) author.

dk/dk cc:9116 5/23/97