A microprocessor based system for vibration testing of aircraft structures

Author

Ganesan, Subramaniam

Author_Institution

Dept. of Comput. Sci. & Eng., Oakland Univ., Rochester, MI, USA

fYear

1989

fDate

25-27 Apr 1989

Firstpage

383

Lastpage

387

Abstract

The author describes an instrumentation system for studying the dynamics of aircraft structures and helicopter rotor blade models. The requirements of various systems for microprocessor-based vibration control and analysis of various systems and details of the instrument are presented. The design of a microprocessor system based on DSP (digital signal processing) microprocessors, an interface to various signal sensors, sensor mounting and selection criteria, signal transmission from the rotating structure to a microprocessor input port, signal processing algorithms, multiblade coordinate transformation, and mode shape analyzer implementation details are discussed. The advantages of using multiple DSP microprocessors for this application are given. Advantages such as online display of the result at the testing site, flexibility, and accuracy are highlighted

Keywords

aerospace testing; aircraft; automatic test equipment; automatic testing; digital signal processing chips; helicopters; microcomputer applications; vibration measurement; aircraft structures; digital signal processing; dynamics; helicopter rotor blade models; interface; microprocessor based system; mode shape analyzer; multiblade coordinate transformation; online display; selection criteria; sensor mounting; signal processing algorithms; signal sensors; signal transmission; vibration testing; Aerospace electronics; Aircraft; Algorithm design and analysis; Digital signal processing; Helicopters; Instruments; Microprocessors; Sensor systems; Signal processing; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1989. IMTC-89. Conference Record., 6th IEEE

Conference_Location

Washington, DC

Type

conf

DOI

10.1109/IMTC.1989.36890

Filename

36890