Transcription of Vibration Terms Vibration Equations - aeco.com
1 AMERICAN ENVIRONMENTS COMPANY, INC. 17 COMMERCIAL BLVD., MEDFORD, 11763-1522. Phone (631) 736-5883 FAX (631) 736-5272. URL E-MAIL Vibration Terms 2. F = force D = peak to peak displacement g /Hz = acceleration density m = mass f = bandwidth in Hertz f = frequency in Hertz (Hz). a = acceleration V = velocity g = the acceleration of gravity grms = the rms value of acceleration in units of gravity Vibration Equations Sinusoidal Vibration Velocity, Acceleration and Displacement Relationships English Metric V = fD V = fD. V = X g f D = inches peak to peak V = X g f D = meters peak to peak 2 2. g = f D V = inches per second g = f D V = meters per second g = f = frequency in Hertz (Hz) g = Vf f = frequency in Hertz (Hz). 2 2 2 2. a = g = inches/second a = g = meters/second 2 2. D = X V f a= inches/second D = X V f a = meters/second 2 2. D = X g f D = X g f Constants for True Sine Waves rms value = X peak value peak value = X rms value rms value = average value peak value = X average value average value = X peak value peak to peak = 2 X peak value average value = X rms value crest factor = peak value rms value Random Vibration Acceleration, Acceleration Density and Displacement Relationships (For a flat or white noise spectrum).
2 2. grms = SQR [ f (g /Hz)]. 2 2 3. g /Hz = (D ) X f 2 3. D = [SQR (g /Hz f )]. DYNAMIC, CLIMATIC & EMI TESTING.
