HaverSine or Half Sine

Look at a sine wave. Imagine that you are looking at the upper half, representing instantaneous acceleration vs. time. There is no physical way to achieve such a pulse, such a sharp transition from zero slope to a high slope. All shock test methods approximate this with a relatively smooth transition. The result is often called a haversine.

Please see Chapter 30 on shock testing in my 2005 text that's described at http://www.vibrationandshock.com/book.htm.

Who heads your lab (name, postal and e-mail addresses, phone, etc.) ? Perhaps I know him or he knows me or both.

Best wishes,




Wayne Tustin
please send all e-mail to tustin@equipment-reliability.com; be sure to fill in the "subject" line
Equipment Reliability Institute
http://www.equipment-reliability.com
http://www.vibrationandshock.com
1520 Santa Rosa Avenue,
Santa Barbara, California 93109 USA
phone 805/564-1260 FAX 805/966-7875