Method of forming random vibration spectrum and device therefor

Details Method of forming random vibration spectrum and device therefor Method of forming random vibration spectrum and device therefor

1983-08-22

1985-04-30

Birmiel, Howard A.

Measuring and testing

Vibration

Vibrator

G01M 700

Patent

active

045136220

ABSTRACT:
A method of forming a desired vibration spectrum comprising the steps of preliminarily causing vibration of an article in a predetermined frequency range by the use of harmonic variable-frequency oscillations and using a multichannel signal shaper to produce specific values of spectral vibration acceleration density at each chosen check point on the article under test in each band of the predetermined frequency range, a random output signal level K in each channel being computed by solving a set of linear equations. A device for accomplishing the proposed method comprises the multichannel shaper connected to a vibrator mounting the article under test; vibration pick-ups secured at the chosen check points and connected through a switch to the input of a signal analyzer; a unit for setting parameters of a desired random vibration spectrum; and a control unit. The device forming the subject of the invention also comprises a variable-frequency harmonic oscillator and a memory unit connected thereto.

REFERENCES:
patent: 3157045 (1964-11-01), Maki
patent: 3710082 (1973-01-01), Sloane et al.
"Equipment for Reproducing and Reporting Random Vibrations and Shocks", Y. V. Veselov, et al., Leningradsky Dom Nauchno--Technicheskoy Propagandy, 1979.
"Sound and Vibration Analysis and Data Processing Devices", Bruel and Kjaer Model 7502, 7504, 6401 (1973).

Affiliated with

Also associated with

Rating

Method of forming random vibration spectrum and device therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of forming random vibration spectrum and device therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming random vibration spectrum and device therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1962150