Vibration Measurement in Flight Massachusetts Institute of Technology

Format:

Other

Author/Creator:

Draper, C. S., author.

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1937

Summary:

EQUIPMENT for measuring vibration in airplane structures and powerplants during actual flight is described in this paper. This development is the result of a cooperative research program carried out by the Bureau of Aeronautics of the U. S. Navy and the Massachusetts Institute of Technology with contributions of improvements in design and new features by the Sperry Gyroscope Company, IncorporatedIn its essentials, the M.I.T.-Sperry Apparatus consists of a number of electrical pickup units which operate a central amplifying and recording unit. The recorder is a double-element photographic oscillograph. Each pickup is adapted especially to the type of vibration that it is intended to measure and is made so small that it does not appreciably affect the vibration characteristics of the member to which it is attached rigidly. By using a number of systematically placed pickups, all the necessary vibration information on an airplane can be recorded during a few short flights. The paper takes up in detail flight test installation, sample records and results from flight test, measurement of vibratory strains, pickup units, strain gage, amplifier, oscillograph, and calibrator

Notes:

Vendor supplied data

Publisher Number:

370175

Access Restriction:

Restricted for use by site license